Re: Python Portability--Not very portable?
On 8/6/2010 10:31 AM, geremy condra wrote: On Fri, Aug 6, 2010 at 8:00 AM, W. eWatsonwolftra...@invalid.com wrote: I would think there are some small time and big time Python players who sell executable versions of their programs for profit? Yes. What's your point? That someone must know how to distribute them without having the source code ripped off. I've never seen a code obfuscation scheme I thought did the job the whole way, including compiling C, and Python bytecode is significantly easier to turn back into something resembling the original source (YMMV, I suppose). Also, if you don't know about common tools like distutils, the odds are pretty good that it isn't your code itself that is valuable to you- you're probably more interested in protecting your idea about what the code should do. At least for now, that's outside of the scope of technical solutions- discuss it with a lawyer, not a programmer. disutils. Sounds familiar. I'm pretty sure I was using Py2Exe, and disutils might have been part of it. distutils. http://docs.python.org/library/distutils.html I don't see ;how distutils is going to solve this problem. Are you suggesting the program should be packaged? Why? I can just send it to him as py code. distutils looks like it's for library modules, e.g., functions like math. ...no. Distutils is handy because you could just bundle your dependencies and hand them an easy-to-install package, which would be a quick way to get everybody on the same page. Of course, depending on the licenses those dependencies are under you might want to do even more talking to a lawyer than I've previously suggested before you go about trying to sell that bundle- I'm sure you wouldn't want to 'rip off' great free projects like python and numpy. Geremy Condra Yes, code reversal programs have been around for many, many decades. Try one on MS Word or Adobe Acrobat. :-) Is there a complete illustration of using disutils? Our only dependencies are on Python Org material. We use no commercial or licensed code. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Finding the version # of a module, and py module problem
I must be missing something. I tried this. (Windows, IDLE, Python 2.5) # Try each module import sys import numpy import scipy import string dependencies = numyp, scipy for dependency in dependencies: try: __import__(dependency.name) except ImportError: # Uh oh! dependency.installed = None else: # The module loaded OK. Get a handle to it and try to extract # version info. # Many Python modules follow the convention of providing their # version as a string in a __version__ attribute. module = sys.modules[dependency.name] # This is what I default to. dependency.installed = [version unknown] for attribute_name in (__version__, __VERSION__, VERSION, version): if hasattr(module, attribute_name): dependency.installed = getattr(module, attribute_name) break The result was this. Traceback (most recent call last): File C:/Users/Wayne/Sandia_Meteors/Trajectory_Estimation/dependency_code, line 10, in module __import__(dependency.name) AttributeError: 'str' object has no attribute 'name' -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Finding the version # of a module, and py module problem
It's been awhile since I've used python, and I recall there is a way to find the version number from the IDLE command line prompt. dir, help, __version.__? I made the most minimal change to a program, and it works for me, but not my partner. He gets Traceback (most recent call last): File C:\Documents and Settings\HP_Administrator.DavesDesktop\Desktop\NC-FireballReport20100729.py, line 40, in module from scipy import stats as stats # scoreatpercentile File C:\Python25\lib\site-packages\scipy\stats\__init__.py, line 7, in module from stats import * File C:\Python25\lib\site-packages\scipy\stats\stats.py, line 191, in module import scipy.special as special File C:\Python25\lib\site-packages\scipy\special\__init__.py, line 22, in module from numpy.testing import NumpyTest ImportError: cannot import name NumpyTest Here are the first few lines of code. import sys, os, glob import string from numpy import * from datetime import datetime, timedelta import time from scipy import stats as stats # scoreatpercentile I'm pretty sure he has the same version of Python, 2.5, but perhaps not the numpy or scipy modules. I need to find out his version numbers. -- Wayne Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7 N, 121° 2' 32 W, 2700 feet -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Finding the version # of a module, and py module problem
On 8/5/2010 6:13 PM, Steven D'Aprano wrote: On Thu, 05 Aug 2010 17:55:30 -0700, W. eWatson wrote: I'm pretty sure he has the same version of Python, 2.5, but perhaps not the numpy or scipy modules. I need to find out his version numbers. It's only a convention, but the usual way is to check the __version__ attribute. It works for Numpy: import numpy numpy.__version__ '1.0.3' It is now written in my Py book. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Finding the version # of a module, and py module problem
On 8/5/2010 6:23 PM, MRAB wrote: W. eWatson wrote: It's been awhile since I've used python, and I recall there is a way to find the version number from the IDLE command line prompt. dir, help, __version.__? I made the most minimal change to a program, and it works for me, but not my partner. He gets Traceback (most recent call last): File C:\Documents and Settings\HP_Administrator.DavesDesktop\Desktop\NC-FireballReport20100729.py, line 40, in module from scipy import stats as stats # scoreatpercentile File C:\Python25\lib\site-packages\scipy\stats\__init__.py, line 7, in module from stats import * File C:\Python25\lib\site-packages\scipy\stats\stats.py, line 191, in module import scipy.special as special File C:\Python25\lib\site-packages\scipy\special\__init__.py, line 22, in module from numpy.testing import NumpyTest ImportError: cannot import name NumpyTest Here are the first few lines of code. import sys, os, glob import string from numpy import * from datetime import datetime, timedelta import time from scipy import stats as stats # scoreatpercentile I'm pretty sure he has the same version of Python, 2.5, but perhaps not the numpy or scipy modules. I need to find out his version numbers. Try: import numpy help(numpy.version) BTW, on Python 2.6 I can see that there's numpytest but not NumpyTest. I have to stick with 2.5 for comparability with my partner. He's non-Python but was able to get Python 2.5 working. I think he somehow bumped ahead to a later version of numpy than I have. -- http://mail.python.org/mailman/listinfo/python-list
Python Portability--Not very portable?
In my on-again-off-again experience with Python for 18 months, portability seems an issue. As an example, my inexperienced Python partner 30 miles away has gotten out of step somehow. I think by installing a different version of numpy than I use. I gave him a program we both use months ago, and he had no trouble. (We both use IDLE on 2.5). I made a one character change to it and sent him the new py file. He can't execute it. I doubt he has changed anything in the intervening period. A further example. Months ago I decided to see if I could compile a program to avoid such problems as above. I planned to satisfy that need, and see if I could distribute some simple programs to non-Python friends. I pretty well understand the idea,and got it working with a small program. It seemed like a lot of manual labor to do it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Portability--Not very portable?
On 8/5/2010 7:45 PM, geremy condra wrote: On Thu, Aug 5, 2010 at 6:50 PM, W. eWatsonwolftra...@invalid.com wrote: In my on-again-off-again experience with Python for 18 months, portability seems an issue. As an example, my inexperienced Python partner 30 miles away has gotten out of step somehow. I think by installing a different version of numpy than I use. I gave him a program we both use months ago, and he had no trouble. (We both use IDLE on 2.5). I made a one character change to it and sent him the new py file. He can't execute it. I doubt he has changed anything in the intervening period. Portability doesn't mean you can use different versions of your dependencies and be A-OK. It should be fairly obvious that if the behavior of your dependencies changes, your code needs to change to ensure that it demonstrates the same behavior. Portability also doesn't mean that any given one-character change is valid, so that may be your issue as well. A further example. Months ago I decided to see if I could compile a program to avoid such problems as above. I planned to satisfy that need, and see if I could distribute some simple programs to non-Python friends. I pretty well understand the idea,and got it working with a small program. It seemed like a lot of manual labor to do it. What, why were you compiling a program? And why not just use distutils? Geremy Condra I checked the one char change on my system thoroughly. I looked around on some forums and NGs 4 months ago, and found no one even had a simple compiled program available to even demonstrate some simple example. I would think there are some small time and big time Python players who sell executable versions of their programs for profit? disutils. Sounds familiar. I'm pretty sure I was using Py2Exe, and disutils might have been part of it. So how does one keep a non-Python user in lock step with my setup, so these problems don't arise? I don't even want to think about having him uninstall and re-install. :-) Although maybe he could do it without making matters worse. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why this Difference in Importing NumPy 1.2 vs 1.4?
Add/Remove under Control Panel. It's a numpy problem. On 3/28/2010 9:20 AM, W. eWatson wrote: I wrote a program in Python 2.5 under Win7 and it runs fine using Numpy 1.2 , but not on a colleague's machine who has a slightly newer 2.5 and uses NumPy 1.4. We both use IDLE to execute the program. During import he gets this: Traceback (most recent call last): File C:\Documents and Settings\HP_Administrator.DavesDesktop\My Documents\Astro\Meteors\NC-FireballReport.py, line 38, in module from scipy import stats as stats # scoreatpercentile File C:\Python25\lib\site-packages\scipy\stats\__init__.py, line 7, in module from stats import * File C:\Python25\lib\site-packages\scipy\stats\stats.py, line 191, in module import scipy.special as special File C:\Python25\lib\site-packages\scipy\special\__init__.py, line 22, in module from numpy.testing import NumpyTest ImportError: cannot import name NumpyTest Comments? It looks as though the problem is in NumPy 1.4. If it's either in NumPy or SciPy, how does my colleague back out to an earlier version to agree with mine? Does he just pull down 1.3 or better 1.2 (I use it.), and install it? How does he somehow remove 1.4? Is it as easy as going to IDLE's path browser and removing, under site-packages, numpy? (I'm not sure that's even possible. I don't see a right-click menu.) -- http://mail.python.org/mailman/listinfo/python-list
Why this Difference in Importing NumPy 1.2 vs 1.4?
I wrote a program in Python 2.5 under Win7 and it runs fine using Numpy 1.2 , but not on a colleague's machine who has a slightly newer 2.5 and uses NumPy 1.4. We both use IDLE to execute the program. During import he gets this: Traceback (most recent call last): File C:\Documents and Settings\HP_Administrator.DavesDesktop\My Documents\Astro\Meteors\NC-FireballReport.py, line 38, in module from scipy import stats as stats # scoreatpercentile File C:\Python25\lib\site-packages\scipy\stats\__init__.py, line 7, in module from stats import * File C:\Python25\lib\site-packages\scipy\stats\stats.py, line 191, in module import scipy.special as special File C:\Python25\lib\site-packages\scipy\special\__init__.py, line 22, in module from numpy.testing import NumpyTest ImportError: cannot import name NumpyTest Comments? It looks as though the problem is in NumPy 1.4. If it's either in NumPy or SciPy, how does my colleague back out to an earlier version to agree with mine? Does he just pull down 1.3 or better 1.2 (I use it.), and install it? How does he somehow remove 1.4? Is it as easy as going to IDLE's path browser and removing, under site-packages, numpy? (I'm not sure that's even possible. I don't see a right-click menu.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Verifying My Troublesome Linkage Claim between Python and Win7
On 2/23/2010 6:04 PM, Aahz wrote: In articlehm0jn4$tn...@news.eternal-september.org, W. eWatsonwolftra...@invalid.com wrote: My claim is that if one creates a program in a folder that reads a file in the folder it and then copies it to another folder, it will read the data file in the first folder, and not a changed file in the new folder. I'd appreciate it if some w7 users could try this, and let me know what they find. My experience is that if one checks the properties of the copied file, it will point to the original py file and execute it and not the copy. I've no time to verify your specific claim and have no readily available proof for mine, but I've seen similar issues on Win7. AFAIK, this has nothing to do with Python. I've been away for several days and have no idea if anyone above figured this out. Likely not,since your post is at the end. Interesting about 'similar'. I'm pretty much done exploring every nook and cranny on this problem. It can be worked around. I will say that if I look at the properties of the copied file, it shows a shortcut tab that leads back to the original file. I have no recollection of making a shortcut, and always use Copy and Paste. Further, if I do create shortcut in W7, it adds -shortcut to the file suffix. I do not ever recall seeing that anywhere. I just tried it in XP, and it puts it in front of the name. -- http://mail.python.org/mailman/listinfo/python-list
Verifying My Troublesome Linkage Claim between Python and Win7
In the last day, I posted a message titled What's Going on between Python and win7? I'd appreciate it if someone could verify my claim. A sample program to do this is below. I'm using IDLE in Win7 with Py 2.5. My claim is that if one creates a program in a folder that reads a file in the folder it and then copies it to another folder, it will read the data file in the first folder, and not a changed file in the new folder. I'd appreciate it if some w7 users could try this, and let me know what they find. My experience is that if one checks the properties of the copied file, it will point to the original py file and execute it and not the copy. # Test program. Examine strange link in Python under Win7 # when copying py file to another folder. # Call the program vefifywin7.py # To verify my situation use IDLE, save and run this program there. # Put this program into a folder along with a data file # called verify.txt. Create a single text line with a few characters in it # Run this program and note if the output # Copy the program and txt file to another folder # Change the contents of the txt file # Run it again, and see if the output is the same as in the other folder track_file = open(verify.txt) aline = track_file.readline(); print aline track_file.close() -- http://mail.python.org/mailman/listinfo/python-list
Bay Area PUG Meeting Thursday in Mountain View, CA
Anyone here going to the meeting,Subject? As far as I can tell, it meets from 7:30 to 9 pm. Their site shows no speaker yet, and there seems to be an informal group dinner at 6 pm at some place yet unknown. Comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: Verifying My Troublesome Linkage Claim between Python and Win7
On 2/23/2010 8:26 AM, Rick Dooling wrote: No telling what Windows will do. :) I am a mere hobbyist programmer, but I think real programmers will tell you that it is a bad habit to use relative paths. Use absolute paths instead and remove all doubt. http://docs.python.org/library/os.path.html RD You may be right. The actual 300 line program just reads the folder without specifying any path. I'm not that familiar with os path, but have seen it used. -- http://mail.python.org/mailman/listinfo/python-list
Re: Verifying My Troublesome Linkage Claim between Python and Win7
On 2/23/2010 11:14 AM, Gib Bogle wrote: W. eWatson wrote: On 2/23/2010 8:26 AM, Rick Dooling wrote: No telling what Windows will do. :) I am a mere hobbyist programmer, but I think real programmers will tell you that it is a bad habit to use relative paths. Use absolute paths instead and remove all doubt. http://docs.python.org/library/os.path.html RD You may be right. The actual 300 line program just reads the folder without specifying any path. I'm not that familiar with os path, but have seen it used. How do you invoke the program? Do you use a Command Prompt window? IDLE, but I'm prett sure I tried it (300 lines) with Cprompt. -- http://mail.python.org/mailman/listinfo/python-list
Re: Bay Area PUG Meeting [Speaker] Thursday in Mountain View, CA?
On 2/23/2010 7:49 AM, W. eWatson wrote: Anyone here going to the meeting,Subject? As far as I can tell, it meets from 7:30 to 9 pm. Their site shows no speaker yet, and there seems to be an informal group dinner at 6 pm at some place yet unknown. Comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: Bay Area PUG Meeting Thursday in Mountain View, CA
On 2/23/2010 2:50 PM, Aahz wrote: In articlehm0tdp$la...@news.eternal-september.org, W. eWatsonwolftra...@invalid.com wrote: Anyone here going to the meeting,Subject? As far as I can tell, it meets from 7:30 to 9 pm. Their site shows no speaker yet, and there seems to be an informal group dinner at 6 pm at some place yet unknown. Comments? Subscribe to http://mail.python.org/mailman/listinfo/baypiggies Thanks. I'd appreciate it if you tell me what topic is. I belong to too many mail lists. Thursday will be my first meeting. Perhaps I'll change my mind about ML after a meeting. Can you describe anything more than the topic? Do they have books, videos, tutorials (live), casual Q/A, person-to-person chat before the speaker? -- http://mail.python.org/mailman/listinfo/python-list
Re: Bay Area PUG Meeting Thursday in Mountain View, CA
On 2/23/2010 2:50 PM, Aahz wrote: In articlehm0tdp$la...@news.eternal-september.org, W. eWatsonwolftra...@invalid.com wrote: Anyone here going to the meeting,Subject? As far as I can tell, it meets from 7:30 to 9 pm. Their site shows no speaker yet, and there seems to be an informal group dinner at 6 pm at some place yet unknown. Comments? Subscribe to http://mail.python.org/mailman/listinfo/baypiggies Thanks. I'd appreciate it if you tell me what topic is. I belong to too many mail lists. Thursday will be my first meeting. Perhaps I'll change my mind about ML after a meeting. Can you describe anything more than the topic? Do they have books, videos, tutorials (live), casual Q/A, person-to-person chat before the speaker? -- http://mail.python.org/mailman/listinfo/python-list
Re: The Disappearing Program? (py2exe, graphics)
This apparently is not quite as easy as the py2exe tutorial suggests when MPL is involved. See http://www.py2exe.org/index.cgi/MatPlotLib. It looks like I have some reading and work to do. -- http://mail.python.org/mailman/listinfo/python-list
What's Going on between Python and win7?
Last night I copied a program from folder A to folder B. It inspects the contents of files in a folder. When I ran it in B, it gave the results for A! Out of frustration I changed the name in A, and fired up the program in B. Win7 went into search mode for the file. I looked at properties for the B program, and it was clearly pointing to folder A. Anyone have this happen to them? Another anomaly. I have the files track.py and trackstudy.py in the same folder along with 100 or so other py and txt data files. When I did a search from the folder window in the upper right corner, search only found one of the two. I called HP tech support about it, and they could see it for themselves via remote control. They had no idea, but agreed to contact MS. In this case, I noted that this search box has some sort of filter associated with it. Possibly, in my early stages of learning to navigate in Win7, I accidentally set the filter. Comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between Python and win7?
On 2/22/2010 8:29 AM, Grant Edwards wrote: On 2010-02-22, W. eWatsonwolftra...@invalid.com wrote: Last night I copied a program from folder A to folder B. [tail of various windows breakages elided] Comments? Switch to Linux? Or at least install Cygwin? Yes, definitely not related, but maybe some W7 user has a similar experience here. It seems a natural place to look, since it should be reasonably common. I have Cygwin. -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between Python and win7?
So what's the bottom line? This link notion is completely at odds with XP, and produces what I would call something of a mess to the unwary Python/W7 user. Is there a simple solution? How do I get out of this pickle? I just want to duplicate the program in another folder, and not link to an ancestor. -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between Python and win7?
On 2/22/2010 6:39 PM, David Robinow wrote: On Mon, Feb 22, 2010 at 8:25 PM, W. eWatsonwolftra...@invalid.com wrote: How do I get out of this pickle? I just want to duplicate the program in another folder, and not link to an ancestor. Ask in an appropriate forum. I'm not sure where that is but you might try http://www.sevenforums.com/ Not in my NG list. If the way this is going is that it occurs on W7, not just in my case, then it will impact many Python users. -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between Python and win7?
On 2/22/2010 8:50 PM, Alf P. Steinbach wrote: * W. eWatson: So what's the bottom line? This link notion is completely at odds with XP, Well, Windows NT has always had *hardlinks*. g I found it a bit baffling that that functionality is documented as not implemented for Windows in the Python standard library. But OK, it was non-trivial to do prior to Windows 2000; you had to sort of hack it using the backup APIs since the functionality was not exposed through the ordinary file APIs. and produces what I would call something of a mess to the unwary Python/W7 user. Is there a simple solution? How do I get out of this pickle? I just want to duplicate the program in another folder, and not link to an ancestor. Copy and paste. Cheers hth., - Alf I thought that's what I did. Is there some other way? -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between Python and win7?
On 2/22/2010 8:50 PM, Alf P. Steinbach wrote: * W. eWatson: So what's the bottom line? This link notion is completely at odds with XP, Well, Windows NT has always had *hardlinks*. g I found it a bit baffling that that functionality is documented as not implemented for Windows in the Python standard library. But OK, it was non-trivial to do prior to Windows 2000; you had to sort of hack it using the backup APIs since the functionality was not exposed through the ordinary file APIs. and produces what I would call something of a mess to the unwary Python/W7 user. Is there a simple solution? How do I get out of this pickle? I just want to duplicate the program in another folder, and not link to an ancestor. Copy and paste. Cheers hth., - Alf Alf? Hello,Norway. My wife is Norwegian and that was her father's name. I thought that's what I did. Is there some other way? Tusin Tak (That's about the size of my vocabulary and spelling ability! 1000 thanks. What is the correct spelling?) -- http://mail.python.org/mailman/listinfo/python-list
Re: What's Going on between (Verify) Python and win7?
Maybe someone could verify my result? open file read file line print line close file data 1234 Execute it in a folder Create another folder and copy the program to it. put in a new data file as data 4567 Execute the copied program Does it give data1234? -- http://mail.python.org/mailman/listinfo/python-list
The Disappearing Program?
I've successfully compiled several small python programs on Win XP into executables using py2exe. A program goes from a name like snowball.py to snowball. A dir in the command prompt window finds snowball.py but not snowball. If I type in snowball, it executes. What's up with that? -- http://mail.python.org/mailman/listinfo/python-list
Re: The Disappearing Program?
On 2/19/2010 7:16 AM, Mark Lawrence wrote: Andre Engels wrote: On Fri, Feb 19, 2010 at 3:19 PM, Mark Lawrence breamore...@yahoo.co.uk wrote: Andre Engels wrote: On Fri, Feb 19, 2010 at 12:20 PM, W. eWatson wolftra...@invalid.com ... tories, or even the whole hard drive, for snowball.*. Then the OP would know exactly what he has or hasn't got. HTH. Mark Lawrence Here's the answer. Consider this folder. Afolder abc.py hello.py I now apply py2exe steps to produce an executable for abc. The folder now changes to Afolder build dist abc.py hello.py build are two new folders. dist contains abc.exe. Somehow when I type abc at the command prompt, this follows a path to dist, and finds abc.exe, where it executes properly. Cute, eh? I have no explanation for it. I have no idea what build is for, but dist contains a bunch of other files that possible apply to doing this with other files in the Afolder. hello.py maybe. The details seem to be shrouded. Possible a Google might provide a full explanation. -- http://mail.python.org/mailman/listinfo/python-list
Re: The Disappearing Program?
On 2/19/2010 10:56 AM, CM wrote: On Feb 19, 12:21 pm, W. eWatsonwolftra...@invalid.com wrote: On 2/19/2010 7:16 AM, Mark Lawrence wrote: Andre Engels wrote: On Fri, Feb 19, 2010 at 3:19 PM, Mark Lawrence breamore...@yahoo.co.uk wrote: Andre Engels wrote: On Fri, Feb 19, 2010 at 12:20 PM, W. eWatsonwolftra...@invalid.com ... tories, or even the whole hard drive, for snowball.*. Then the OP would know exactly what he has or hasn't got. HTH. Mark Lawrence Here's the answer. Consider this folder. Afolder abc.py hello.py I now apply py2exe steps to produce an executable for abc. The folder now changes to Afolder build dist abc.py hello.py build are two new folders. dist contains abc.exe. Somehow when I type abc at the command prompt, this follows a path to dist, and finds abc.exe, where it executes properly. Cute, eh? I have no explanation for it. Are you sure it's executing abc.exe? If you are at a Python command prompt within the DOS shell and you just type just abc, I think what is happening is you are running abc.py, NOT abc.exe. py2exe creates a dist folder (short for distributables) by default and puts your .exe into it along with whatever other files are needed to run your application. Depending on how you set the bundling options, this may be a lot of things or just 1-2 other things. Che Well, you are right. What proof do I have? In fact, I just tried to run a program that was not converted, and left off py. It worked. So maybe the only way to execute the compiled code is to to to dist? -- http://mail.python.org/mailman/listinfo/python-list
Re: Updating Packages in 2.5 (win/numpy) and Related Matters (the latest)
On 17 February 2010 07:25, josef.p...@gmail.com wrote: On Wed, Feb 17, 2010 at 12:10 AM, Wayne Watson sierra_mtnv...@sbcglobal.net wrote: Hi, I'm working on a 1800+ line program that uses tkinter. Here are the messages I started getting recently. (I finally figured out how to copy them.). The program goes merrily on its way despite them. s\sentusersentuser_20080716NoiseStudy7.py C:\Python25\lib\site-packages\scipy\misc\__init__.py:25: DeprecationWarning: Num pyTest will be removed in the next release; please update your code to use nose or unittest test = NumpyTest().test DeprecationWarnings mean some some functionality in numpy (or scipy) has changed and the old way of doing things will be removed and be invalid in the next version. During depreciation the old code still works, but before you upgrade you might want to check whether and how much you use these functions and switch to the new behavior. In the case of numpy.test, it means that if you have tests written that use the numpy testing module, then you need to switch them to the new nose based numpy.testing. And you need to install nose for running numpy.test() Wayne - The DeprecationWarnings are being raised by SciPy, not by your code. You probably don't have a recent version of SciPy installed. The most recent release of SciPy is 0.7.1 and works with NumPy 1.3.0. I don't think you will see the warnings if you upgrade SciPy and NumPy on your system. Check your NumPy and SciPy versions at a python prompt as follows: import numpy as np print np.__version__ import scipy as sp print sp.__version__ You will need to completely remove the old versions if you choose to upgrade. You should be able to do this from Add/Remove Programs. Cheers, Scott ___ NumPy-Discussion mailing list numpy-discuss...@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion -- http://mail.python.org/mailman/listinfo/python-list
Re: Updating Packages in 2.5 (win/numpy) and Related Matters (the latest)
On 17 February 2010 07:25, josef.p...@gmail.com wrote: On Wed, Feb 17, 2010 at 12:10 AM, Wayne Watson sierra_mtnv...@sbcglobal.net wrote: Hi, I'm working on a 1800+ line program that uses tkinter. Here are the messages I started getting recently. (I finally figured out how to copy them.). The program goes merrily on its way despite them. s\sentusersentuser_20080716NoiseStudy7.py C:\Python25\lib\site-packages\scipy\misc\__init__.py:25: DeprecationWarning: Num pyTest will be removed in the next release; please update your code to use nose or unittest test = NumpyTest().test DeprecationWarnings mean some some functionality in numpy (or scipy) has changed and the old way of doing things will be removed and be invalid in the next version. During depreciation the old code still works, but before you upgrade you might want to check whether and how much you use these functions and switch to the new behavior. In the case of numpy.test, it means that if you have tests written that use the numpy testing module, then you need to switch them to the new nose based numpy.testing. And you need to install nose for running numpy.test() Wayne - The DeprecationWarnings are being raised by SciPy, not by your code. You probably don't have a recent version of SciPy installed. The most recent release of SciPy is 0.7.1 and works with NumPy 1.3.0. I don't think you will see the warnings if you upgrade SciPy and NumPy on your system. Check your NumPy and SciPy versions at a python prompt as follows: import numpy as np print np.__version__ import scipy as sp print sp.__version__ You will need to completely remove the old versions if you choose to upgrade. You should be able to do this from Add/Remove Programs. Cheers, Scott ___ NumPy-Discussion mailing list numpy-discuss...@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion -- http://mail.python.org/mailman/listinfo/python-list
Re: Updating Packages in 2.5 (win/numpy) and Related Matters (the latest)
Had trouble posting this to the same thread above. Request above to provide response from numpy mail list. On 17 February 2010 07:25, josef.p...@gmail.com wrote: On Wed, Feb 17, 2010 at 12:10 AM, Wayne Watson sierra_mtnv...@sbcglobal.net wrote: Hi, I'm working on a 1800+ line program that uses tkinter. Here are the messages I started getting recently. (I finally figured out how to copy them.). The program goes merrily on its way despite them. s\sentusersentuser_20080716NoiseStudy7.py C:\Python25\lib\site-packages\scipy\misc\__init__.py:25: DeprecationWarning: Num pyTest will be removed in the next release; please update your code to use nose or unittest test = NumpyTest().test DeprecationWarnings mean some some functionality in numpy (or scipy) has changed and the old way of doing things will be removed and be invalid in the next version. During depreciation the old code still works, but before you upgrade you might want to check whether and how much you use these functions and switch to the new behavior. In the case of numpy.test, it means that if you have tests written that use the numpy testing module, then you need to switch them to the new nose based numpy.testing. And you need to install nose for running numpy.test() Wayne - The DeprecationWarnings are being raised by SciPy, not by your code. You probably don't have a recent version of SciPy installed. The most recent release of SciPy is 0.7.1 and works with NumPy 1.3.0. I don't think you will see the warnings if you upgrade SciPy and NumPy on your system. Check your NumPy and SciPy versions at a python prompt as follows: import numpy as np print np.__version__ import scipy as sp print sp.__version__ You will need to completely remove the old versions if you choose to upgrade. You should be able to do this from Add/Remove Programs. Cheers, Scott ___ NumPy-Discussion mailing list numpy-discuss...@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion -- http://mail.python.org/mailman/listinfo/python-list
Re: Wrestling with the Py2exe Install, Win7, Py2.5
On 2/17/2010 3:44 AM, mk wrote: W. eWatson wrote: P.S. I didn't really use PyInstaller on Windows, though -- just on Linux, where it works beautifully. Regards, mk Well,Ive made some progress with a py2exe tutorial. It starts with the short hello world! program. But something stumbled right away in setup.py. I'm on a mail list to sort this out. -- http://mail.python.org/mailman/listinfo/python-list
Updating Packages in 2.5 (win/numpy) and Related Matters
I normally use IDLE on Win, but recently needed to go to command prompt to see all error messages. When I did, I was greeted by a host of deprecation and Numpy messages before things got running. The program otherwise functioned OK, after I found the problem I was after. Are these messages a warning to get to the next update of numpy? I would guess that updating to a higher update does not mean I need to remove the old one, correct? In general for libraries like numpy or scipy, I use win32 updates, but I see win32-p3 updates too on download pages. Since I may be distributing this program to p3 machines, will I need to provide the win32-p3 updates to those users? -- http://mail.python.org/mailman/listinfo/python-list
Re: Is there a simple way to find the list index to the max value?
On 2/16/2010 4:41 AM, Arnaud Delobelle wrote: Arnaud Delobellearno...@googlemail.com writes: W. eWatsonwolftra...@invalid.com writes: See Subject. a = [1,4,9,3]. Find max, 9, then index to it, 2. Here are a few ways. [...] My copy past went wrond and I forgot the first one: a = [1,4,9,3] max_index = a.index(max(a)) max_index 2 Ah, the good one for last! Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Updating Packages in 2.5 (win/numpy) and Related Matters
On 2/16/2010 7:30 AM, Robert Kern wrote: On 2010-02-16 06:16 AM, W. eWatson wrote: I normally use IDLE on Win, but recently needed to go to command prompt to see all error messages. When I did, I was greeted by a host of deprecation and Numpy messages before things got running. The program otherwise functioned OK, after I found the problem I was after. Are these messages a warning to get to the next update of numpy? I would guess that updating to a higher update does not mean I need to remove the old one, correct? In general for libraries like numpy or scipy, I use win32 updates, but I see win32-p3 updates too on download pages. Since I may be distributing this program to p3 machines, will I need to provide the win32-p3 updates to those users? You will definitely want to ask these questions on the numpy-discussion mailing list. They are numpy-specific. Please copy-and-paste the messages that you get. http://www.scipy.org/Mailing_Lists Good idea, for the first part of this. I would think In genera for ... would be answerable here, but I'll give them both a shot. I'll post what I find here, as a follow up. -- http://mail.python.org/mailman/listinfo/python-list
Wrestling with the Py2exe Install, Win7, Py2.5
I've finally decided to see if I could make an executable out of a py file. Win7. Py2.5. I brought down the install file and proceeded with the install. I got two warning messages. Forgot the first. The second said,Could not set the key value. I again used OK. I think that was the only choice. It then issued a message in a larger dialog. It was about setting a key, and pointed me to a log. It mentions a Removepy2exe -u Although it finished, I have no idea where the program is. It does not show up on the Start menu All Programs List nore my desktop. What's up? I've had these messages (key) occur on other Python installs as I transition to Win7. So far no problem. -- http://mail.python.org/mailman/listinfo/python-list
Is there a simple way to find the list index to the max value?
See Subject. a = [1,4,9,3]. Find max, 9, then index to it, 2. -- http://mail.python.org/mailman/listinfo/python-list
Looking for a Compiled Demo of MPL (matplotlib) Graphics
Does anyone know where I can find a compiled demo that uses MPL graphics? I'd like, if possible, a Win version whose size is less than 10M, so that I can send it via e-mail, if necessary. It should use plot, so that someone can manipulate the plot with the navigation controls. At this point, I have no idea if that method is the fundamental graph tool or not. I suspect it is. If a mailable demo isn't available, maybe there's a web site that one can download such examples from? -- http://mail.python.org/mailman/listinfo/python-list
Re: Tangling with mathplotlib(MPL) on XP and Win7 -- show() stopper
Solved. I need to get into the interactive mode. Never heard of it until this morning. -- http://mail.python.org/mailman/listinfo/python-list
Re: Socket Error: Permission Denied (Firewall)
(corrected typos) I decided to go with outbound in McAfee. Now when I run the program, I get a long list of messages about deprecations and NumpyTest will be removed in the next release. please update code to nose or unittest. -- http://mail.python.org/mailman/listinfo/python-list
Re: Socket Error: Permission Denied
I decided to go with outbound. Now when I run the program, I get a long of messabge about deprecations and NumpyTest will be removed in the next release. please update code to nose or unittest. -- http://mail.python.org/mailman/listinfo/python-list
Socket Error: Permission Denied
I'm using IDLE with winxp. It seems every day I get into the Subject above. Usually, after 5-8 minutes I get past it. A msg appearing at the same time say, IDLE's subprocess didn't make connect. ... possible firewall problem. A resource for this is http://bugs.python.org/issue6941. There a number of choices. Perhaps the most appealing is: adgprogramming: first, bring up your task manager and make sure there are no python processes running. 2.6.x subprocesses can get stuck. Then make sure that your firewall isn't blocking socket access to localhost. Then restart IDLE. IDLE 3.1.1 may work for you since it has the recent enhancement that allows multiple copies of IDLE to run simultaneously, but it still needs interprocess access via sockets. How would I know the which Python processes or subprocesses are running? I can kill the main one, but that seems to do no good. pythonw.exe. Comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: Socket Error: Permission Denied
On 2/8/2010 7:24 PM, W. eWatson wrote: I'm using IDLE with winxp. It seems every day I get into the Subject above. Usually, after 5-8 minutes I get past it. A msg appearing at the same time say, IDLE's subprocess didn't make connect. ... possible firewall problem. A resource for this is http://bugs.python.org/issue6941. There a number of choices. Perhaps the most appealing is: adgprogramming: first, bring up your task manager and make sure there are no python processes running. 2.6.x subprocesses can get stuck. Then make sure that your firewall isn't blocking socket access to localhost. Then restart IDLE. IDLE 3.1.1 may work for you since it has the recent enhancement that allows multiple copies of IDLE to run simultaneously, but it still needs interprocess access via sockets. How would I know the which Python processes or subprocesses are running? I can kill the main one, but that seems to do no good. pythonw.exe. Comments? I'm using McAffee. I see it was pythonw.exe blocked in red. There are several choices: Allow Access, Allow Outboubnd only Block (current), Remove Prgrm permission, Learn More. Outbound only seem reasonable, but why does the blocking keep returning every many hours, or maybe when I reboot, which I've done several times today? -- http://mail.python.org/mailman/listinfo/python-list
Tangling with mathplotlib(MPL) on XP and Win7 -- show() stopper
I'm doing most of this on a win7 machine. When I installed MPL, I had
two small dialogs appear that said something was missing, but I pressed
on. MPL seemed to generally work except for the show() problem. When it
was to be executed to show the output of plot(x,y), it did just that;
however, the shell window hung, and I had to upper right corner x my way
out of it--2 to 3 steps. The plot window and program easily went the
same way. IDLE is the tool of choice on both machines.
I'm in the process of bringing programs from my XP to the win7 machine,
and on the XP machine I decided to start using MPL with a 900 line Py
program that I'm revising. I had gotten stuck with the very same problem
there. However, last night I realized someone had added a MPL plot to it
years ago, and it does not fail on show(). I've put print stmts after
show() in the big program, but nothing is printed in either case when I
close the plot window. Tried in IDLE and executing from clicking on the
py file in its folder.
I brought some of this up on the MPL mailing list, and one respondent
said he had tried some of the examples with show(), and they had worked.
I noticed the dialog msgs mentioned above, and thought I made a mistake
in not installing numpy first, so tried to figure out a way to do it.
Three posts on different forums did not provide an answer. I
accidentally found the author of MPL's hidden away in one of MPL files.
He said it didn't make a difference and asked me not to use his address.
I though the warning msgs might be of interest to him, so wrote to him.
He had blocked me. Perhaps I need to file a bug report to get his
attention on that.
Anyway, I'm now stalled on the development of the big program. It's
possible this is an IDLE problem, but I ran the big program with a click
on the file, and the black window showed the same problem. This is all
on XP Pro.
I'm going to copy the two code segments here. Maybe someone can see a
difference.
=OLD working code
def light_curve( self ):
result = []
test = 1
for tup in self.subimages:
left,top,subimage = tup
total = 0
avg_total = 0
if (test == 1):
box = (left, top, left+128, top+128)
region = self.reference_image.crop(box)
self.reference_image.paste(subimage, box)
test = 2
else:
for x in range(left+43,left+82):
for y in range(top+43, top+82):
avg_total = avg_total +
self.reference_image.getpixel((x, y))
for x in range(43,82): #take the center 40 X 40 pixel
block
for y in range(43,82):
v = subimage.getpixel((x, y))
total = total + v
#for x in range(left, left+127):
#for y in range(top, top+127):
#avg_total = avg_total +
self.reference_image.getpixel((x, y))
#for x in range(0, 127):
#for y in range(0, 127):
#total = total + subimage.getpixel((x, y))
result.append(total - avg_total) #(average -
background average) gives pixel intensity above the background)
plotting_x = range(2, len(result)+2)
plot(plotting_x, result)
xlabel('Frame #')
ylabel('Pixel count above background count')
title('Light curve for selected subplot')
show()
===New Code with show problem
def get_point_trail_stats(self): # Simple track statistics
xy = array(self.xya)[:,0:2] # creates a two column array for x,y
pt2pt_dist = []
pt_dist = []
for k in arange(0,len(xy)-1):
distance = sqrt((xy[k+1,0]-xy[k,0])**2 +
(xy[k+1,1]-xy[k,1])**2)
pt_dist.append(distance)
# wtw print k ,k, (xy[k,0], xy[k,1]), distance: ,
distance
# wtwfor k in arange(0, len(xy)-50):
# wtwprint k: %3i dist: %6.2f (x,y) (%4.1f,%4.1f) % (k,
pt_dist[k], xy[k,0], xy[k,1])
per_tile25 = stats.scoreatpercentile(pt_dist,25.0)
per_tile50 = stats.scoreatpercentile(pt_dist,50.0)
per_tile75 = stats.scoreatpercentile(pt_dist,75.0)
mean = stats.mean(pt_dist)
std= stats.std(pt_dist)
#sys.exit()
amin = min(pt_dist)
amax = max(pt_dist)
printmean: %7.2f std: %7.2f min: %7.2f max: %7.2f %
(mean, std, amin, amax)
printquartiles (25-per: %7.2f, 50-per: %7.2f, 75-per:
%7.2f): % (per_tile25, per_tile50, per_tile75)
#printExtended stats
#printmin: %7.2f max: %7.2f mean: %7.2f std: %7.2f % \
#(min, max, mean, std)
#printp25: %7.2f p50: %7.2f p75: %7.2f % (per_tile25,
per_tile50,
How Uninstall MatPlotLib?
See Subject. -- http://mail.python.org/mailman/listinfo/python-list
Drawing a zig-zag Trail in Python?
I'd like to draw something like an animal track. Between each point is a line. Perhaps the line would have an arrow showing the direction of motion. There should be x-y coordinates axises. PIL? MatPlotLib, ?? -- http://mail.python.org/mailman/listinfo/python-list
Re: How Uninstall MatPlotLib?
On 2/5/2010 8:17 AM, W. eWatson wrote: See Subject. I'm working in IDLE in Win7. It seems to me it gets stuck in site-packages under C:\Python25. Maybe this is as simple as deleting the entry? Well, yes there's a MPL folder under site-packages and an info MPL file of 540 bytes. There are also pylab.py, pyc,and py0 files under site. -- http://mail.python.org/mailman/listinfo/python-list
Re: Drawing a zig-zag Trail in Python?
On 2/5/2010 9:30 AM, Grant Edwards wrote: On 2010-02-05, W. eWatsonwolftra...@invalid.com wrote: I'd like to draw something like an animal track. Between each point is a line. Perhaps the line would have an arrow showing the direction of motion. There should be x-y coordinates axises. PIL? MatPlotLib, ?? I'd probably use gnuplot-py, but I'm probably biased since I've been using gnuplot since way before I learned Python. It appears this is easier than I thought. MLB's plot will do it. I can put arrows at the end of a line, and even use sleep to watch the path slowly evolving. -- http://mail.python.org/mailman/listinfo/python-list
Exiting a Program Running in Idle, Various Choices
I I have a very simple program running in Python, with say the last line print bye. it finishes leaving the script showing in the shell window. The program proceeds linearly to the bottom line. Suppose now I have instead a few lines of MatPlotLib code (MPL) like this at the end: ... Show() Show displays some graph and again the code proceeds linearly from line 1. However, if one closes the graphic by clicking the x in the upper right corner of that window, then no appears in the shell, and one must kill the shell using the x in the shell's upper right corner. A little dialog with the choices of OK (kill) or cancel appears. Use OK and the shell window disappears. A ctrl-c does nothing in the shell. I know about sys.exit(),and a finish def when using Tkinter. I'm not using Tkinter as far as I know via MPL. So how does one exit smoothly in this case of Show(), so that the shell window remains ready to entry commands? -- http://mail.python.org/mailman/listinfo/python-list
What's the Scoop on \\ for Paths? (Win)
I'm sure that \\ is used in some way for paths in Win Python, but I have not found anything after quite a search. I even have a six page pdf on a file tutorial. Nothing. Two books. Nothing. When I try to open a file along do I need, for example, Events\\record\\year\\today? Are paths like, .\\Events allowed, or am I mixing up my Linux memory on this? -- http://mail.python.org/mailman/listinfo/python-list
Re: What's the Scoop on \\ for Paths? (Win)
Alf P. Steinbach wrote: * W. eWatson: I'm sure that \\ is used in some way for paths in Win Python, but I have not found anything after quite a search. I even have a six page pdf on a file tutorial. Nothing. Two books. Nothing. When I try to open a file along do I need, for example, Events\\record\\year\\today? Are paths like, .\\Events allowed, or am I mixing up my Linux memory on this? The Python issue with \\ is that in a literal string \\ denotes a single \ character, like print( back\\slash ) back\slash _ This is just like in other languages with syntax inherited from C. Look up escape sequences. It has nothing to do with files and paths per se, but means that you cannot write e.g. c:\windows\system32, but must write something like c:\\windows\\system32 (try to print that string), or, since Windows handles forward slashes as well, you can write c:/windows/system32 :-). The Window issue with \\ is that \\ as a path prefix denotes an UNC (Universal Naming Convention) path. Usually that would be a LAN or WAN network path, but it can also denote a printer or a pipe or a mailslot or just about anything. Using UNC paths opens the door to creating files and directories that other programs won't be able to handle, so Just Say No(TM), if you can. Cheers hth., - Alf Ah, yes. Thanks for the memory jog. -- http://mail.python.org/mailman/listinfo/python-list
Re: What's the Scoop on \\ for Paths? (Win)
Steve Holden wrote: You need to read up on string literals is all. \\ is simply the literal representation of a string containing a single backslash. This comes about because string literals are allowed to contain special escape sequences which are introduced by a backslash; since this gives the backslash a special meaning in string literals we also have to use an escape sequence (\\) to represent a backslash. In practice you will find that a) Many Windows APIs (but not the command line) are just as happy with a forward slash as a backslash to separate file path components; and b) The best practice is to build filenames using the routines provided in the os.path module, which guarantees to give results correct for the current platform. regards Steve Basic sys functions brought out the \ separator for paths. What am I missing here? Looks OK to me. abc=r'xyz\\' abc 'xyz' print abc xyz\\ abc.replace(r'\',r'z') SyntaxError: invalid syntax abc 'xyz' -- http://mail.python.org/mailman/listinfo/python-list
py2exe and pydocs. Downloads?
I'm using Python 2.5 under windows, and IDLE. Do py2exe and pydocs come with the package, or do I have to download them? -- http://mail.python.org/mailman/listinfo/python-list
Changing Lutz's mydir from Edition 2, Learning Python
See Subject. The code is below with a few changes I made at the bottom by inserting import string import numpy module = raw_input(Enter module name: ) listing(module) I thought I'd see if I could convert this to a program instead, which asks the user for the module. As prompt entry, it was meant to do this, for example: import math import pynum mydir.listing(numpy) As below, it fails with: Is it possible to get this to work? Enter module name: numpy -- name: Traceback (most recent call last): File C:/Sandia_Meteors/Sentinel_Development/Learn_Python/mydir_pgm.py, line 31, in module listing(module) File C:/Sandia_Meteors/Sentinel_Development/Learn_Python/mydir_pgm.py, line 8, in listing print name:, module.__name__, file:, module.__file__ AttributeError: 'str' object has no attribute '__name__ mydir start=== # a module that lists the namespaces of other modules verbose = 1 def listing(module): if verbose: print -*30 print name:, module.__name__, file:, module.__file__ print -*30 count = 0 for attr in module.__dict__.keys(): # scan namespace print %02d) %s % (count, attr), if attr[0:2] == __: print built-in name # skip __file__, etc. else: print getattr(module, attr) # same as .__dict__[attr] count = count+1 if verbose: print -*30 print module.__name__, has %d names % count print -*30 if __name__ == __main__: import mydir import string import numpy module = raw_input(Enter module name: ) listing(module) #listing(mydir) # self-test code: list myself ===end== -- http://mail.python.org/mailman/listinfo/python-list
Re: Changing Lutz's mydir from Edition 2, Learning Python
Chris Rebert wrote: On Sun, Jan 17, 2010 at 12:11 PM, W. eWatson wolftra...@invalid.com wrote: See Subject. The code is below with a few changes I made at the bottom by inserting import string import numpy module = raw_input(Enter module name: ) listing(module) As the error says, strings have no __name__ attribute; from this, one can infer that listing() expects a module object, not a string which is the name of a module. Try instead: module = __import__(raw_input(Enter module name: )) listing(module) Cheers, Chris -- http://blog.rebertia.com I thought I'd see if I could convert this to a program instead, which asks the user for the module. ... File C:/Sandia_Meteors/Sentinel_Development/Learn_Python/mydir_pgm.py, line 31, in module listing(module) File C:/Sandia_Meteors/Sentinel_Development/Learn_Python/mydir_pgm.py, line 8, in listing print name:, module.__name__, file:, module.__file__ AttributeError: 'str' object has no attribute '__name__ Very cool. Thanks to both of you. -- http://mail.python.org/mailman/listinfo/python-list
IDLE Namespace Toolbox? Windows.
This is a follow up to my post Changing Lutz's mydir. It would seem there should be some sort of toolbox that allows one to do things like mydir, and perhaps a lot more. Maybe something like it exists in Linux. I'm a Windows user. I've found it a bit aggravating that using dir and help, for example, that the output just rolls on off the screen and I have to play around with the shell scroll bars to find what I'm looking for. A few simple changes to mydir should change that, but I would hope or think maybe there are even more tools to generally help. -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe and pydocs. Downloads?
Gabriel Genellina wrote: En Sun, 17 Jan 2010 15:16:17 -0300, W. eWatson wolftra...@invalid.com escribió: I'm using Python 2.5 under windows, and IDLE. Do py2exe and pydocs come with the package, or do I have to download them? py2exe has to be downloaded from www.py2exe.org I don't know pydocs, but pydoc comes with Python Thanks. I'll look at the link. Actually, I was close http://www.py2exe.org/index.cgi/Tutorial, but no banana (cigar). Yep, right on your link, download from source forge. According to Lutz's 4th edition (reading from Amazon), Pydoc is shipped with Python. I found this earlier in the Python Help under Global Index for modules. == The pydoc module automatically generates documentation from Python modules. The documentation can be presented as pages of text on the console, served to a Web browser, or saved to HTML files. The built-in function help() invokes the online help system in the interactive interpreter, which uses pydoc to generate its documentation as text on the console. The same text documentation can also be viewed from outside the Python interpreter by running pydoc as a script at the operating system's command prompt. For example, running pydoc sys at a shell prompt = I get: import pydoc pydoc sys SyntaxError: invalid syntax The book says Help uses it, and there's some sort of html version, but I'm missing something here. Command line, Linux shell? -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE Namespace Toolbox? Windows.
John Bokma wrote: W. eWatson wolftra...@invalid.com writes: This is a follow up to my post Changing Lutz's mydir. It would seem there should be some sort of toolbox that allows one to do things like mydir, and perhaps a lot more. Maybe something like it exists in Linux. I'm a Windows user. I've found it a bit aggravating that using dir and help, for example, that the output just rolls on off the screen and I have to play around with the shell scroll bars to find what I'm looking for. A few simple changes to mydir should change that, but I would hope or think maybe there are even more tools to generally help. on the command prompt: cmd | more works Apparently, not in IDLE under Win. dir() | more Traceback (most recent call last): File pyshell#42, line 1, in module dir() | more NameError: name 'more' is not defined -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad (Windows)
D'Arcy J.M. Cain wrote: On Fri, 15 Jan 2010 20:17:35 -0800 W. eWatson wolftra...@invalid.com wrote: Could be, but I have no way of easily knowing. In any case, I was trying to write a simple report that could be printed with titles at the top of each page. If there's another common format that I can write in to produce the file, that's fine. It may be this is so difficult to be impossible. Long, long ago this was no problem. :-) Why not generate a PostScript or PDF file in the first place? Check out reportlab. New Courier and NotePad produces a good looking result. I'm trying to keep this effort to a minimum. I don't think tracking down how to write PP code PDF code is worth for this effort. In another related effort that I might get involved in, it would be good to be able to produce graphical data as from MatPlotLib and be able to print that to a printer directly from a Python program. -- http://mail.python.org/mailman/listinfo/python-list
chr(12) Form Feed in Notepad
I thought I'd put a page break, chr(12), character in a txt file I wrote to skip to the top of the page. It doesn't work. Comments? -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad
Grant Edwards wrote: On 2010-01-15, W. eWatson wolftra...@invalid.com wrote: I thought I'd put a page break, chr(12), character in a txt file I wrote to skip to the top of the page. It doesn't work. Comments? Yes, it does work. Apparently not with with my Brother 1440 laser printer. The character in NotePad.txt looks like a small rectangle, and on the printed page. Same result HP C6180 Photosmart. -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad (Windows)
Tim Chase wrote: W. eWatson wrote: Grant Edwards wrote: On 2010-01-15, W. eWatson wolftra...@invalid.com wrote: I thought I'd put a page break, chr(12), character in a txt file I wrote to skip to the top of the page. It doesn't work. Comments? Yes, it does work. Apparently not with with my Brother 1440 laser printer. The character in NotePad.txt looks like a small rectangle, and on the printed page. Same result HP C6180 Photosmart. But are you sending the raw control codes to the printer, or are you sending the image-of-my-text-document to a printer-GDI which then renders the as-you-see-it out of the printer? The pseudo-pipeline comparison would be type file.txt lpt1: which would send the raw text file to the printer (assuming it's set up on LPT1, otherwise, use whatever port it's attached to in your printer control panel); or are you using something like notepad file.txt File - Print which renders to an internal image representation and then sends that image out to the printer. If it were a dot-matrix printer, you'd here/see the difference in a jiffy -- the raw dump is fast and uses the printer's built-in fonts while the render-as-image is slow and NOISY. One alternative is possibly to set up the Generic Text printer as a device type and attach it to the same port; I've had fair fortune with this letting me control the printer more directly if I want fast dumps (particularly on dot-matrix printers) rather than pretty dumps. -tkc I should mention I'm using Windows. I just put chr(12) right in the txt. It's the first character in the next line of the txt file where I want to page forward. Not acquainted with GDI. Maybe I need some sequence of such characters? -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad (Windows)
Tim Chase wrote: W. eWatson wrote: Tim Chase wrote: The pseudo-pipeline comparison would be type file.txt lpt1: which would send the raw text file to the printer (assuming it's set up on LPT1, otherwise, use whatever port it's attached to in your printer control panel); or are you using something like notepad file.txt File - Print I should mention I'm using Windows. I just put chr(12) right in the txt. It's the first character in the next line of the txt file where I want to page forward. Not acquainted with GDI. Maybe I need some sequence of such characters? It's not a matter of you controlling the GDI stuff. Unless you're writing directly to the printer device, printing on Windows is done (whether by Notepad, gvim, Word, Excel, whatever) into a graphical representation which is then shipped off to the printer. So if you're printing from Notepad, it's going to print what you see (the little square), because Notepad renders to this graphical representation to print. If you send the file *directly* to the printer device (bypassing the Win32 printing layer), it will send the ^L directly and should eject a new page on most printers. -tkc I am writing a txt file. It's up to the user to print it using Notepad or some other tool. I have no idea how to send it directly to the printer, but I really don't want to furnish that capability in the program. From Google, The Graphics Device Interface (GDI). -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad (Windows)
Mensanator wrote: On Jan 15, 6:40 pm, W. eWatson wolftra...@invalid.com wrote: Tim Chase wrote: W. eWatson wrote: Tim Chase wrote: ... program. From Google, The Graphics Device Interface (GDI). Have you considered the possibility that your printer can't print raw text files? I had one that would ONLY print Postscript. Embedding a chr(12) would accomplish nothing, you HAD to use a driver that would translate chr(12) into the appropriate Postcript codes. What you're doing MIGHT work for others with different printers. Could be, but I have no way of easily knowing. In any case, I was trying to write a simple report that could be printed with titles at the top of each page. If there's another common format that I can write in to produce the file, that's fine. It may be this is so difficult to be impossible. Long, long ago this was no problem. :-) I suppose I could copy the txt file into wordpad, and print it there. -- http://mail.python.org/mailman/listinfo/python-list
Re: chr(12) Form Feed in Notepad (Windows)
Neil Hodgson wrote: W. eWatson wrote: I am writing a txt file. It's up to the user to print it using Notepad or some other tool. WordPad will interpret chr(12) as you want. Neil That may be the solution. Just tell the end user to copy the file into it, and print it there. I just tried it in Wordpad, and it works, but my --- underlines are pushed together. Maybe tabs instead of spaces. The columns past Seq # in WordPad may suffer from the characters not being fixed width. Well, a little work with WordPad might be enough for users to get it right. Copy txt file into wordpad. Select all the text, and set format to fixed (if that's possible.). Here's what a txt sample looks like. It has line wrap here, and the page feed Date/Time Station UTC Seq # Frames Time Span Pix Dst Pix/Sec --- -- --- - -- - --- --- 2008/11/12 17:38:58 WW 2008/11/13 01:38:58 1 Noise data. Short track. 2008/11/12 17:39:24 WW 2008/11/13 01:39:24 2 Noise data. Short track. -PAGE FEED Date/Time Station UTC Seq # Frames Time Span Pix Dst Pix/Sec --- -- --- - -- - --- --- 2008/11/17 22:29:54 WW 2008/11/18 06:29:54 21 Noise data. Short track. 2008/11/18 01:51:36 WW 2008/11/18 09:51:36 22 Noise data. Short track. 2008/11/18 04:05:03 WW 2008/11/18 12:05:03 23 Noise data. Short track. 2008/11/18 17:40:42 WW 2008/11/19 01:40:42 2495 3.17 48.17 15.21 -- http://mail.python.org/mailman/listinfo/python-list
Re: Fractional Hours from datetime?
Ben Finney wrote: Alf P. Steinbach al...@start.no writes: And considering this, and the fact that Google's archive is now the main Usenet archive, message id's are not that useful, really. You've demonstrated only that Google is an unreliable Usenet archive. One doesn't even need to use Usenet, in this case, since comp.lang.python is a forum distributed both as a Usenet forum and a mailing-list forum. Good Clarke quote. (Not present here.) -- http://mail.python.org/mailman/listinfo/python-list
Re: Fractional Hours from datetime?
Austyn wrote: Here's an improvement in case you want your code to work outside of Arizona: from time import time, timezone h = ((time() - timezone) / 3600) % 24 On Jan 10, 9:04 pm, Austyn aus...@gmail.com wrote: How about: import time arizona_utc_offset = -7.00 h = (time.time() / 3600 + arizona_utc_offset) % 24 dt.timetuple()[6] is the day of the week; struct tm_time doesn't include a sub-second field. On Jan 10, 10:28 am, W. eWatson wolftra...@invalid.com wrote: Maybe there's a more elegant way to do this. I want to express the result of datetime.datetime.now() in fractional hours. Here's one way. dt=datetime.datetime.now() xtup = dt.timetuple() h = xtup[3]+xtup[4]/60.0+xtup[5]/3600.00+xtup[6]/10**6 # now is in fractions of an hour There seems to be some controversy about this and other matters of datetime. http://blog.twinapex.fi/2008/06/30/relativity-of-time-shortcomings-in-python-datetime-and-workaround/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Fractional Hours from datetime?
Martin P. Hellwig wrote:
Martin P. Hellwig wrote:
W. eWatson wrote:
Maybe there's a more elegant way to do this. I want to express the
result of datetime.datetime.now() in fractional hours.
Here's one way.
dt=datetime.datetime.now()
xtup = dt.timetuple()
h = xtup[3]+xtup[4]/60.0+xtup[5]/3600.00+xtup[6]/10**6
# now is in fractions of an hour
Here is another (though personally I don't find this more elegant than
yours, perhaps a bit more readable):
now = datetime.datetime.now()
fractional_hour = int(now.strftime('%H')) +
int(now.strftime('%M')) / 60.0
Actually my version is overcomplicated:
now = datetime.datetime.now()
fractional_hour = now.hour + now.minute / 60.0
See my post about the datetime controversy about 3-4 posts up from yours.
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Re: Fractional Hours from datetime?
Martin P. Hellwig wrote:
Martin P. Hellwig wrote:
W. eWatson wrote:
Maybe there's a more elegant way to do this. I want to express the
result of datetime.datetime.now() in fractional hours.
Here's one way.
dt=datetime.datetime.now()
xtup = dt.timetuple()
h = xtup[3]+xtup[4]/60.0+xtup[5]/3600.00+xtup[6]/10**6
# now is in fractions of an hour
Here is another (though personally I don't find this more elegant than
yours, perhaps a bit more readable):
now = datetime.datetime.now()
fractional_hour = int(now.strftime('%H')) +
int(now.strftime('%M')) / 60.0
Actually my version is overcomplicated:
now = datetime.datetime.now()
fractional_hour = now.hour + now.minute / 60.0
See my post about the datetime controversy about 3-4 posts up from yours.
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Re: Fractional Hours from datetime?
Ben Finney wrote: W. eWatson wolftra...@invalid.com writes: See my post about the datetime controversy about 3-4 posts up from yours. This forum is distributed, and there's no “up” or “3-4 messages” that is common for all readers. Could you give the Message-ID for that message? Sort of like outer space I guess. No real direction. How would I find the message ID? It's easier to place the comment here: There seems to be some controversy about this and other matters of datetime. http://blog.twinapex.fi/2008/06/30/relativity-of-time-shortcomings-in-python-datetime-and-workaround/ -- http://mail.python.org/mailman/listinfo/python-list
Fractional Hours from datetime?
Maybe there's a more elegant way to do this. I want to express the result of datetime.datetime.now() in fractional hours. Here's one way. dt=datetime.datetime.now() xtup = dt.timetuple() h = xtup[3]+xtup[4]/60.0+xtup[5]/3600.00+xtup[6]/10**6 # now is in fractions of an hour -- http://mail.python.org/mailman/listinfo/python-list
Astronomy--Programs to Compute Siderial Time?
Is there a smallish Python library of basic astronomical functions? There are a number of large such libraries that are crammed with excessive functions not needed for common calculations. -- http://mail.python.org/mailman/listinfo/python-list
Re: Astronomy--Programs to Compute Siderial Time?
W. eWatson wrote: Is there a smallish Python library of basic astronomical functions? There are a number of large such libraries that are crammed with excessive functions not needed for common calculations. It looks like I've entered a new era in my knowledge of Python. I found a module somewhat like I want, siderial.py. You can see an intro to it at http://infohost.nmt.edu/tcc/help/lang/python/examples/sidereal/ims//. It appears that I can get the code for it through section 1.2, near the bottom. I scooped it siderial.py up, and placed it in a corresponding file of the same name and type via NotePad. However, there is a xml file below it. I know little about it. I thought maybe I could do the same, but Notepad didn't like some characters in it. As I understand Python doc files are useful. So how do I get this done, and where do I put the files? -- http://mail.python.org/mailman/listinfo/python-list
Re: Astronomy--Programs to Compute Siderial Time?
Roy Smith wrote: In article hi2o39$hm...@news.eternal-september.org, W. eWatson wolftra...@invalid.com wrote: Is there a smallish Python library of basic astronomical functions? There are a number of large such libraries that are crammed with excessive functions not needed for common calculations. FWIW, if you have any interest in this kind of stuff, you must read the classic book on the subject: http://www.amazon.com/Astronomical-Formulae-Calculators-Jean-Meeus/dp/094339 6220 This is not some textbook which takes graduate level physics to understand. It's a straight-forward primer for people who want to use calculators to compute phase of the moon and stuff like that. Thanks, but I'm quite familiar with it. My copy is some 10-15 years old. I suspect he never wrote a newer edition for any computer language. I do have access to a C++ library, but I don't think that's going to do me much good with Python. My problem at the moment is finding either someone who has implemented it or another similar module. Note I posted just before you that I have found a siderial.py module, but am not familiar with how one installs them or the doc mechanism. -- http://mail.python.org/mailman/listinfo/python-list
Re: Astronomy--Programs to Compute Siderial Time?
John Machin wrote: On Jan 7, 11:40 am, W. eWatson wolftra...@invalid.com wrote: W. eWatson wrote: Is there a smallish Python library of basic astronomical functions? There are a number of large such libraries that are crammed with excessive functions not needed for common calculations. It looks like I've entered a new era in my knowledge of Python. Mild curiosity: this would be a wonderful outcome, but what makes it look so? I actually need to learn how to make a module that can be imported, which in the short interlude I have done. Also looked into docstrings and docs, which I now have a decent grasp of. Never really used either doc info or writing my own module before. Easy. I found a module somewhat like I want, siderial.py. You can see an intro to it at http://infohost.nmt.edu/tcc/help/lang/python/examples/sidereal/ims//. It appears that I can get the code for it through section 1.2, near the bottom. I scooped it siderial.py up, and placed it in a corresponding file of the same name and type via NotePad. However, there is a xml file below it. I know little about it. I thought maybe I could do the same, but Notepad didn't like some characters in it. As I understand Python doc files are useful. So how do I get this done, and where do I put the files? The file you need is sidereal.py, not your twice-mentioned siderial.py (the existence of which on the referenced website is doubtful). How right you are. I misspelled it twice, and quickly found that out when I tried to use the [side][real] (easy mnemonic, two words) module. sidereal. What you have been reading is the Internal maintenance specification (large font, near the top of the page) for the module. The xml file is the source of the docs, not meant to be user-legible. What is it used for? Do I need it? A very tiny amount of googling sidereal.py (quotes included) leads to the user documentation at http://infohost.nmt.edu/tcc/help/lang/python/examples/sidereal/ Found that too as I cruised around. Where do you put the files? Well, we're now down to only one file, sidereal.py, and you put it wherever you'd put any other module that you'd like to call ... if there's only going to be one caller, put it in the same directory as that caller's code. More generally, drop it in YOUR_PYTHON_INSTALL_DIR/Lib/site-packages Again in my learning about modules, discovered that too. I think I'm on my way. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Potential Conflicts by Installing Two Versions of Python (Windows)?
I suspect that if one installs v2.4 and 2.5, or any two versions, that one will dominate, or there will be a conflict. I suppose it would not be possible to choose which one should be used. Comments? -- http://mail.python.org/mailman/listinfo/python-list
mod, modulo and % under 2.4 and 2.5
About a year ago, I wrote a program that used mod() for modulo under 2.5. Apparently, % is also acceptable, but the program works quite well. I turned the program over to someone who is using 2.4, and apparently 2.4 knows nothing about mod(). Out of curiosity, what library is mod(a,b)(two args) in? It doesn't seem to be in numpy. It seems to be built-in. If so, why isn't it both 2.4 and 2.5? -- http://mail.python.org/mailman/listinfo/python-list
Re: mod, modulo and % under 2.4 and 2.5
Steven D'Aprano wrote: On Thu, 31 Dec 2009 17:30:20 -0800, W. eWatson wrote: About a year ago, I wrote a program that used mod() for modulo under 2.5. Apparently, % is also acceptable, but the program works quite well. I turned the program over to someone who is using 2.4, and apparently 2.4 knows nothing about mod(). Out of curiosity, what library is mod(a,b)(two args) in? It doesn't seem to be in numpy. It seems to be built-in. No it doesn't. [st...@sylar ~]$ python2.5 Python 2.5 (r25:51908, Nov 6 2007, 16:54:01) [GCC 4.1.2 20070925 (Red Hat 4.1.2-27)] on linux2 Type help, copyright, credits or license for more information. mod Traceback (most recent call last): File stdin, line 1, in module NameError: name 'mod' is not defined So where is it? Here are the choices. import sys, os, glob import string from numpy import * from datetime import datetime, timedelta import time In the 2.4 version, I change nmnpy to Numeric -- http://mail.python.org/mailman/listinfo/python-list
Re: mod, modulo and % under 2.4 and 2.5
Ben Finney wrote: W. eWatson wolftra...@invalid.com writes: Steven D'Aprano wrote: NameError: name 'mod' is not defined So where is it? Here are the choices. import sys, os, glob import string from numpy import * If you use ‘from foo import *’ you forfeit any way of saying where a name in your code gets bound. Hence, don't do that. Good idea! -- http://mail.python.org/mailman/listinfo/python-list
DST and datetime
Try this. It works for me and my application.
=Program
from datetime import datetime, timedelta
import time
DST_dict = { # West coast, 8 hours from Greenwich for PST
2007:(2007/03/11 02:00:00, 2007/11/04 02:00:00),
2008:(2008/03/09 02:00:00, 2008/11/02 02:00:00),
2009:(2009/03/08 02:00:00, 2009/11/01 02:00:00),
2010:(2010/03/14 02:00:00, 2010/11/07 02:00:00)}
def adjust_DST(DT_stamp, spring, fall):
# /mm/dd hh:mm:ss in,
print Date: , DT_stamp
format = '%Y/%m/%d %H:%M:%S'
dt = datetime(*(time.strptime(DT_stamp, format)[0:6])) # get six tuple
dspring = datetime(*(time.strptime(spring, format)[0:6]))
dfall = datetime(*(time.strptime(fall, format)[0:6]))
if ((dt = dspring) and (dt = dfall)):
printadjustment
adj = timedelta(seconds = 3600)
dt = dt + adj
else:
printno adjustment
format = '%Y/%m/%d %H:%M:%S'
return dt.strftime(format)
print DST Adjustment
print + adjust_DST(2007/03/28 12:45:10, \
2007/03/11 02:00:00, 2007/11/04 02:00:00 )
print + adjust_DST(2009/11/26 20:35:15, \
2007/03/11 02:00:00, 2007/11/04 02:00:00 )
===Results==
ST Adjustment
Date: 2007/03/28 12:45:10
adjustment
2007/03/28 13:45:10
Date: 2009/11/26 20:35:15
no adjustment
2009/11/26 20:35:15
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Re: Difference Between Two datetimes
This is quirky. t1=datetime.datetime.strptime(20091205_221100,%Y%m%d_%H%M%S) t1 datetime.datetime(2009, 12, 5, 22, 11) type(t1) type 'datetime.datetime' t1: 2009-12-05 22:11:00 type 'datetime.datetime' but in the program: import datetime t1=datetime.datetime.strptime(20091205_221100,%Y%m%d_%H%M%S) print t1: ,t1, type(t1) produces t1: 2009-12-05 22:11:00 type 'datetime.datetime' Where did the hyphens and colons come from? -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Peter Otten wrote:
W. eWatson wrote:
This is quirky.
t1=datetime.datetime.strptime(20091205_221100,%Y%m%d_%H%M%S)
t1
datetime.datetime(2009, 12, 5, 22, 11)
type(t1)
type 'datetime.datetime'
t1: 2009-12-05 22:11:00 type 'datetime.datetime'
but in the program:
import datetime
t1=datetime.datetime.strptime(20091205_221100,%Y%m%d_%H%M%S)
print t1: ,t1, type(t1)
produces
t1: 2009-12-05 22:11:00 type 'datetime.datetime'
Where did the hyphens and colons come from?
print some_object
first converts some_object to a string invoking str(some_object) which in
turn calls the some_object.__str__() method. The resulting string is then
written to stdout. Quoting the documentation:
datetime.__str__()
For a datetime instance d, str(d) is equivalent to d.isoformat(' ').
datetime.isoformat([sep])
Return a string representing the date and time in ISO 8601 format,
-MM-DDTHH:MM:SS.mm or, if microsecond is 0, -MM-DDTHH:MM:SS
Peter
So as long as I don't print it, it's datetime.datetime and I can make
calculations or perform operations on it as though it is not a string,
but a datetime object?
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Re: Windows, IDLE, __doc_, other
Lie Ryan wrote: On 12/29/2009 5:10 AM, W. eWatson wrote: Lie Ryan wrote: If you're on Windows, don't use the Edit with IDLE right-click hotkey since that starts IDLE without subprocess. Use the shortcut installed in your Start menu. When I go to Start and select IDLE, Saves or Opens want to go into C:/Python25. I have to motor over to my folder where I keep the source code. The code is in a folder about 4 levels below the top. That's a bit awkward. Is there a way to go directly to the folder I normally work in? -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
BTW, all times are local to my city. Same time zone. -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Lie Ryan wrote: On 12/28/2009 5:42 PM, W. eWatson wrote: You're right. Y. Works fine. The produces datetime.datetime(2009, 1, 2, 13, 1, 15). If I now use t2=datetime.datetime.strptime(2009/01/04 13:01:15,%Y/%m/%d %H:%M:%S) I get tw as datetime.datetime(2009, 1, 4, 13, 1, 15) Then t2-t1 gives, datetime.timedelta(2) which is a 2 day difference--I guess. Strange. what's strange about it? the difference between 2009/01/02 13:01:15 and 2009/01/04 13:01:15 is indeed 2 days... Can you elaborate what do you mean by 'strange'? Easily. In one case, it produces a one argument funcion, and the other 2, possibly even a year if that differs. How does one unload this structure to get the seconds and days? Changing t2=datetime.datetime.strptime(2009/01/04 14:00:30,%Y/%m/%d %H:%M:%S) and differencing gives me, datetime.timedelta(2, 3555), which seems to indicate a 2 day and 3555 second difference. Interesting, but I think there must be another way to do this. Maybe not. to do... what? To find the difference more clearly. Why not just return (0,2,3555) -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Roy Smith wrote: In article hh9k6g$pk...@news.eternal-september.org, W. eWatson wolftra...@invalid.com wrote: BTW, all times are local to my city. Same time zone. Yes, but how much time has elapsed between 2009/0/04 13:01:15 and 2009/06/04 13:01:15? Even if I tell you that both timestamps were done in the same city, you don't have enough information. Hint #1: The answer in Sydney, Bangalore, and New York are all different. Hint #2: Two of those cities are in temperate zones, and one is in the tropics. Hint #3: If you don't pay attention to this, you will be bitten twice a year. Sort of the opposite of a stopped clock. It's right twice a day. How does one solve the DST problem? -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
It the IDLE shell, it's not possible to retrieve lines entered earlier without copying them. Is there an edit facility? I suggest you download a programmers' editor (like Notepad++ or PsPad) for programming work and use the basic Python interpreter for interactive work. The basic interpreter lives in a standard Window console window where you can use up and down arrow keys, F8 completion, F7 for list of earlier commands, etc (as documented by the doskey command in the Windows command interpreter). Just forget IDLE in windows: while Windows console windows are something from the middle ages, IDLE seems to stem from a period before that! g Cheers hth., - Alf PS: Shameless plug: take a look at url: http://tinyurl.com/programmingbookP3, it's for Windows. I just downloaded the three files. It looks useful. I take it you are the author? -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
Lie Ryan wrote: On 12/22/2009 12:06 PM, W. eWatson wrote: ... You must be starting IDLE without subprocess. Did you see this message IDLE 2.6.1 No Subprocess when starting IDLE. Yes, I usually start in a folder where I have my py program files, and do a right-click for IDLE edit. If you're on Windows, don't use the Edit with IDLE right-click hotkey since that starts IDLE without subprocess. Use the shortcut installed in your Start menu. When I go to Start and select IDLE, Saves or Opens want to go into C:/Python25. I have to motor over to my folder where I keep the source code. The code is in a folder about 4 levels below the top. That's a bit awkward. What do subprocesses mean in this context? Why do I need them? line: a = 1. I choose Run Module, and it runs it. I verify in the interactive interpreter that a is 1. I then change that file to a = a + 1, and run it. Now, it errors out-- of course-- because IDLE cleared the namespace and re-ran the module. Hmmm, that appears to contrary to my numpy experience. I've never seen any re-starting msg. Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on win32 Type copyright, credits or license() for more information. That is irrelevant with numpy. If you start IDLE with subprocess, then every time before you run a script this message appears: = RESTART = PS: you can force IDLE to restart the subprocess with Ctrl+F6 It says in the interpreter its restarting, even. When IDLE is not run with subprocess, running a script is equivalent to copy and pasteing the script to the shell. I just tried Ctrl+F6 on both the shell and script window. Nothing happened. Does that occur only if I fired up Python from Start? Does a restart clear out the namespace? -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
D'Arcy J.M. Cain wrote: On Mon, 28 Dec 2009 08:20:28 -0800 W. eWatson wolftra...@invalid.com wrote: Sort of the opposite of a stopped clock. It's right twice a day. How does one solve the DST problem? Depends on which DST problem you have. There is more than one solution depending on what the problem is. Store and compare in UTC and display in local time is one solution but it may not be yours. Actually, UTC is quite relevant here. I would guess there is some way to use datetime for UTC? -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Ben Finney wrote: W. eWatson wolftra...@invalid.com writes: Lie Ryan wrote: what's strange about it? the difference between 2009/01/02 13:01:15 and 2009/01/04 13:01:15 is indeed 2 days... Can you elaborate what do you mean by 'strange'? Easily. In one case, it produces a one argument funcion, and the other 2, possibly even a year if that differs. In both cases it produces not a function, but a ‘datetime.timedelta’ object:: import datetime t1 = datetime.datetime(2009, 1, 2, 13, 1, 15) t2 = datetime.datetime(2009, 1, 4, 13, 1, 15) type(t1) type 'datetime.datetime' type(t2) type 'datetime.datetime' dt = (t2 - t1) type(dt) type 'datetime.timedelta' What you're seeing in the interactive interpreter is a string representation of the object:: dt datetime.timedelta(2) This is no different from what's going on with any other string representation. The representation is not the value. How does one unload this structure to get the seconds and days? It's customary to consult the documentation for questions like that URL:http://docs.python.org/library/datetime.html#datetime.timedelta. To find the difference more clearly. Why not just return (0,2,3555) Because the ‘datetime.timedelta’ type is more flexible than a tuple, and has named attributes as documented at the above URL:: dt.days 2 dt.seconds 0 dt.microseconds 0 Well, it just seems weird to me. g. I'm modestly familiar with objects, but this seems like doing the following. Suppose we have a module called trigonometry, trig for short. It contains lots of trig functions, and sort of uses the same concepts as datetime. Bear with me on that. Here's my imagined interpretive session: import trig c=trig.sin(90.0) # arg is in degrees print c trig.cos(1.0) type(c) type 'trig' value = c.value print value 1.0 I'd call that weird. Maybe in this case it is ... g -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Steven D'Aprano wrote: On Mon, 28 Dec 2009 23:50:30 +1100, Ben Finney wrote: How does one unload this structure to get the seconds and days? It's customary to consult the documentation for questions like that URL:http://docs.python.org/library/datetime.html#datetime.timedelta. No no no, it's customary to annoy everyone on the list by asking the question *without* consulting the documentation, and then to be told to Read The Fine Manual. To be serious for a moment, if you're in the interactive interpreter, you can get some useful information by calling help(datetime.timedelta). Yes, thanks. I'm starting to catch on to the idea there are tools like dir, help, doc sources, and ___dcc__ that can help. It doesn't seem to be standard practice to more or less teach the environment that Python is in. If they do, it's jumbled around. Most books start with Python itself and skirt the issues of the environment and interaction. Oddly, today I found a source that gets right into these concepts. It may have something to do with MIT. Here's a link to one of the three section of the reference http://docs.google.com/leaf?id=0B2oiI2reHOh4ZTFkY2ZmYzktZTVkZS00M2E1LTgwNDUtYWRjZTE1Nzc2ZDYzsort=namelayout=listpid=0B2oiI2reHOh4ZGVmNjk3MjgtZmY5YS00ZWQxLThkNWMtZmJkMmU1MWM1OTcxcindex=2. BTW, I had looked at some Python doc that seems to be apart from the reference above. So I'm not entirely remiss on this. I do look first. However, on the other hand, regarding the reference, 29 pages is a bit steep for any document. -- http://mail.python.org/mailman/listinfo/python-list
Difference Between Two datetimes
According to one web source, this program: import datetime bree = datetime.datetime(1981, 6, 16, 4, 35, 25) nat = datetime.datetime(1973, 1, 18, 3, 45, 50) difference = bree - nat print There were, difference, minutes between Nat and Bree yields: There were 3071 days, 0:49:35 minutes between Nat and Bree That's fine, but I'd like to start with two dates as strings, as 1961/06/16 04:35:25 and 1973/01/18 03:45:50 How do I get the strings into a shape that will accommodate a difference? For example, t1=datetime.datetime.strptime(2009/01/02 13:01:15,%y/%m/%d %H:%M:%S) doesn't do it. ValueError: time data did not match format: data=2009/01/02 13:01:15 fmt=%y/%m/%d %H:%M:%S -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
You're right. Y. Works fine. The produces datetime.datetime(2009, 1, 2, 13, 1, 15). If I now use t2=datetime.datetime.strptime(2009/01/04 13:01:15,%Y/%m/%d %H:%M:%S) I get tw as datetime.datetime(2009, 1, 4, 13, 1, 15) Then t2-t1 gives, datetime.timedelta(2) which is a 2 day difference--I guess. Strange. Changing t2=datetime.datetime.strptime(2009/01/04 14:00:30,%Y/%m/%d %H:%M:%S) and differencing gives me, datetime.timedelta(2, 3555), which seems to indicate a 2 day and 3555 second difference. Interesting, but I think there must be another way to do this. Maybe not. Roy Smith wrote: In article hh9dmv$f9...@news.eternal-september.org, W. eWatson wolftra...@invalid.com wrote: t1=datetime.datetime.strptime(2009/01/02 13:01:15,%y/%m/%d %H:%M:%S) doesn't do it. ValueError: time data did not match format: data=2009/01/02 13:01:15 fmt=%y/%m/%d %H:%M:%S The first thing that jumps out at me is that %y is the two-digit year. You want %Y for 4-digit year. One thing to keep in mind is that 2009/01/02 13:01:15 is ambiguous without a time zone. Even if you assume that both timestamps were from the same location, you need to know what daylight savings rules that location uses, to do this right. -- http://mail.python.org/mailman/listinfo/python-list
Re: Difference Between Two datetimes
Ben Finney wrote: W. eWatson wolftra...@invalid.com writes: How do I get the strings into a shape that will accommodate a difference? For example, t1=datetime.datetime.strptime(2009/01/02 13:01:15,%y/%m/%d %H:%M:%S) doesn't do it. ValueError: time data did not match format: data=2009/01/02 13:01:15 fmt=%y/%m/%d %H:%M:%S As the error message indicates, the data input (the string) doesn't match the specified format. See the time format specifications at the ‘time.strftime’ documentation URL:http://docs.python.org/library/time.html#time.strftime. Note especially that ‘%y’ and ‘%Y’ are distinct. Yes, see my response to the post above yours. -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
Lie Ryan wrote: On 12/21/2009 1:19 PM, W. eWatson wrote: When I use numpy.__doc__ in IDLE under Win XP, I get a heap of words without reasonable line breaks. \nNumPy\n=\n\nProvides\n 1. An array object of arbitrary homogeneous items\n 2. Fast mathematical operations over arrays\n 3. Linear Algebra, Fourier Transforms, Random Number Is there a way to get this formated properly. help(object) If I use dir(numpy), I get yet a very long list that starts as: ['ALLOW_THREADS', 'BUFSIZE', 'CLIP', 'DataSource', 'ERR_CALL', 'ERR_DEFAULT', 'ERR_DEFAULT2', 'ERR_IGNORE', 'ERR_LOG', 'ERR_PRINT', 'ERR_RAISE', 'ERR_WARN', 'FLOATING_POINT_SUPPORT', 'FPE_DIVIDEBYZERO', 'FPE_INVALID', 'FPE_OVERFLOW', 'FPE_UNDERFLOW', 'False_', 'Inf', 'Infinity', 'MAXDIMS', 'MachAr', 'NAN', 'NINF', 'NZERO', 'NaN', 'PINF', 'PZERO', 'PackageLoader', 'RAISE', 'RankWarning', 'SHIFT_DIVIDEBYZERO', 'SHIFT_INVALID', 'SHIFT_OVERFLOW', 'SHIFT_UNDERFLOW', 'ScalarType', 'Tester', 'True_', 'UFUNC_BUFSIZE_DEFAULT' I see this might be a dictionary. What can I do to make it more readable or useful, or is that it? Is there a more abc as in Linux? You can use pprint module: import pprint pprint.pprint(dir(object)) though help() is usually better It the IDLE shell, it's not possible to retrieve lines entered earlier without copying them. Is there an edit facility? Press Alt+P (Previous) and Alt+N (Next). Or you can click/select on the line you want to copy and press Enter. Add to this. Isn't there a way to see the arguments and descriptions of functions? Use help(). Or if you're doing this without human intervention, use `inspect` module. Wow, did I get a bad result. I hit Ctrl-P, I think instead of Alt-P, and a little window came up showing it was about to print hundreds of pages. I can canceled it, but too late. I turned off my printer quickly and eventually stopped the onslaught. I couldn't get Alt-P or N to work. Another question. In interactive mode, how does one know what modules are active? Is there a way to list them with a simple command? -- http://mail.python.org/mailman/listinfo/python-list
Re: Live Video Capture using Python
David Lyon wrote: Also try.. http://www.unixuser.org/~euske/python/vnc2flv/index.html On Mon, 21 Dec 2009 11:15:32 +0530, Banibrata Dutta banibrata.du...@gmail.com wrote: Have you searched the archives of this list ? I remember seeing a related discussion 5-6 months back. On Mon, Dec 21, 2009 at 2:35 AM, aditya shukla adityashukla1...@gmail.comwrote: Hello Guys, I am trying to capture images from a live broadcast of a cricket match or say any video using python. I can see the video in the browser.My aim is to capture the video at any moment and create an images.Searching on google turns up http://videocapture.sourceforge.net/ .I am not sure if this would be help here.I would appreciate if someone points me in the right direction. Thanks Aditya -- http://mail.python.org/mailman/listinfo/python-list I somehow clipped the posts above this thread, so am not sure what prompted this thread. Is there an open source set of modules to do all this? -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
Lie Ryan wrote: On 12/22/2009 6:39 AM, W. eWatson wrote: Wow, did I get a bad result. I hit Ctrl-P, I think instead of Alt-P, and a little window came up showing it was about to print hundreds of pages. I can canceled it, but too late. I turned off my printer quickly and eventually stopped the onslaught. I couldn't get Alt-P or N to work. Another question. In interactive mode, how does one know what modules are active? Is there a way to list them with a simple command? What do you mean by active? All loaded modules, whether it is in your namespace or not? Then sys.modules. Else if you want all names in your namespace, dir() would do, though it'll show other things as well. Let's forget active. Isn't it true that math is automatically available to every module? From help(math): Help on built-in module math: NAME math FILE (built-in) DESCRIPTION This module is always available. It provides access to the mathematical functions defined by the C standard. = So why do I need math.cos(...)? This is got to be some namespace issue. Maybe the help is incorrect. I have: dir(__builtins__) ['ArithmeticError', 'AssertionError', 'AttributeError', 'BaseException', 'DeprecationWarning', 'EOFError', 'Ellipsis', 'EnvironmentError', 'Exception', 'False', 'FloatingPointError', 'FutureWarning', 'GeneratorExit', 'IOError', 'ImportError', 'ImportWarning', 'IndentationError', 'IndexError', 'KeyError', 'KeyboardInterrupt', 'LookupError', 'MemoryError', 'NameError', 'None', 'NotImplemented', 'NotImplementedError', 'OSError', 'OverflowError', 'PendingDeprecationWarning', 'ReferenceError', 'RuntimeError', 'RuntimeWarning', 'StandardError', 'StopIteration', 'SyntaxError', 'SyntaxWarning', 'SystemError', 'SystemExit', 'TabError', 'True', 'TypeError', 'UnboundLocalError', 'UnicodeDecodeError', 'UnicodeEncodeError', 'UnicodeError', 'UnicodeTranslateError', 'UnicodeWarning', 'UserWarning', 'ValueError', 'Warning', 'WindowsError', 'ZeroDivisionError', '_', '__debug__', '__doc__', '__import__', '__name__', 'abs', 'all', 'any', 'apply', 'basestring', 'bool', 'buffer', 'callable', 'chr', 'classmethod', 'cmp', 'coerce', 'compile', 'complex', 'copyright', 'credits', 'delattr', 'dict', 'dir', 'divmod', 'enumerate', 'eval', 'execfile', 'exit', 'file', 'filter', 'float', 'frozenset', 'getattr', 'globals', 'hasattr', 'hash', 'help', 'hex', 'id', 'input', 'int', 'intern', 'isinstance', 'issubclass', 'iter', 'len', 'license', 'list', 'locals', 'long', 'map', 'max', 'min', 'object', 'oct', 'open', 'ord', 'pow', 'property', 'quit', 'range', 'raw_input', 'reduce', 'reload', 'repr', 'reversed', 'round', 'set', 'setattr', 'slice', 'sorted', 'staticmethod', 'str', 'sum', 'super', 'tuple', 'type', 'unichr', 'unicode', 'vars', 'xrange', 'zip'] -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
Stephen Hansen wrote: On Mon, Dec 21, 2009 at 1:51 PM, W. eWatson wolftra...@invalid.com wrote: Lie Ryan wrote: On 12/22/2009 6:39 AM, W. eWatson wrote: Wow, did I get a bad result. I hit Ctrl-P, I think instead of Alt-P, and No, its not true. A built-in module does not mean its available everywhere. It means its built into Python itself-- e.g., its directly linked into the python dll and not a separate file (like most of the the standard library). Lots of modules are built-in, but they don't pollute the __builtins__ / universal namespace. You import them to access them. If you want you can from math import * if you want the math module to fill out your module namespace (I don't recommend *'s personally, its better to import symbols explicitly by name) --S This has got to be some sort of IDLE issue then. When I run a simple program. If I open this program in the IDLE editor: #import math print hello, math world. print cos(0.5) print sin(0.8) then I get print cos(0.5) NameError: name 'cos' is not defined OK, dir() ['__builtins__', '__doc__', '__file__', '__name__', 'idlelib'] Fine. I now change the code to include import mat get the same: print cos(0.5) NameError: name 'cos' is not defined Now, dir() ['__builtins__', '__doc__', '__file__', '__name__', 'idlelib', 'math'] math is now available. so I change cos(0.5) to math.cos(0.5) and get print sin(0.8) NameError: name 'sin' is not defined Fine, it needs math. dir() is the same. Now, I go to the script and enter from math import * dir is now bulked up with the math functions. I change back math.cos to cos and the program runs well. This sort of figures. Apparently, I've added to the namespace by importing with *. My point is that I'm betting different results. OK, fine. It appears the same thing happens with I modify the program itself with from math import * So IDLE is not clearing the namespace each time I *run* the program. This is not good. I've been fooled. So how do I either clear the namespace before each Run? Do I have to open the file in the editor again each time before trying to Run it? I hope there's a better way. -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows, IDLE, __doc_, other
Stephen Hansen wrote: On Mon, Dec 21, 2009 at 2:57 PM, W. eWatson wolftra...@invalid.com wrote: This has got to be some sort of IDLE issue then. Huh? How do you figure? When I run a simple program. If I open this program in the IDLE editor: #import math print hello, math world. print cos(0.5) print sin(0.8) then I get print cos(0.5) NameError: name 'cos' is not defined Of course, because -- cos is not defined. As I stated in my previous email, math has to be imported to be used. Yes, I agree. OK, dir() ['__builtins__', '__doc__', '__file__', '__name__', 'idlelib'] Fine. I now change the code to include import mat get the same: print cos(0.5) NameError: name 'cos' is not defined Yes, because cos is inside math. True enough. Hang in there. [snip Now, I go to the script and enter from math import * dir is now bulked up with the math functions. I change back math.cos to cos and the program runs well. This sort of figures. Apparently, I've added to the namespace by importing with *. Apparently? -- you precisely and explicitly added every object in 'math' to your current namespace. from math import * does precisely that. Well, it's a big surprise to me, because I thought each time I ran from the editor that it reloaded the modules in my imports, and cleared out any it didn't find. My point is that I'm betting different results. OK, fine. It appears the same thing happens with I modify the program itself with from math import * Different results? What different results are you talking about? It seems to me as I fool around with interpreter under the script window, Im creating a mess out of the namespace the program uses, and the program responds incorrectly. If you want to access 'sin' without 'math.', you'll have to do 'from math import *' in each file where you want to do that. So IDLE is not clearing the namespace each time I *run* the program. This is not good. I've been fooled. So how do I either clear the namespace before each Run? Do I have to open the file in the editor again each time before trying to Run it? I hope there's a better way. How do you figure its 'not clearing the namespace'? In which namespace? I fire up IDLE, and start a new file, and put in a single Try this sequence. I just started plugging away again with IDLE and am pretty convinced that IDLE is something of an enemy. I started afresh loading this into the editor: import math print hello, math world. print math.cos(0.5) print math.sin(0.8) Run works fine. No errors. Now I do: dir() ['__builtins__', '__doc__', '__file__', '__name__', 'idlelib', 'math'] OK, swell. Now I import via the script window import numpy as np dir() ['__builtins__', '__doc__', '__file__', '__name__', 'idlelib', 'math', 'np'] I think I'm adding to the namespace, both the program the shell sees, because adding this ref to np in the program works fine. import math print hello, math world. print math.cos(0.5) print math.sin(0.8) print np.sin(2.2) --- There's no np in that code, but yet it works. It must be in the namespace it sees, and it was put there through the interactive shell. line: a = 1. I choose Run Module, and it runs it. I verify in the interactive interpreter that a is 1. I then change that file to a = a + 1, and run it. Now, it errors out-- of course-- because IDLE cleared the namespace and re-ran the module. Hmmm, that appears to contrary to my numpy experience. I've never seen any re-starting msg. Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on win32 Type copyright, credits or license() for more information. It says in the interpreter its restarting, even. --S -- http://mail.python.org/mailman/listinfo/python-list
Windows, IDLE, __doc_, other
When I use numpy.__doc__ in IDLE under Win XP, I get a heap of words without reasonable line breaks. \nNumPy\n=\n\nProvides\n 1. An array object of arbitrary homogeneous items\n 2. Fast mathematical operations over arrays\n 3. Linear Algebra, Fourier Transforms, Random Number ... Is there a way to get this formated properly. If I use dir(numpy), I get yet a very long list that starts as: ['ALLOW_THREADS', 'BUFSIZE', 'CLIP', 'DataSource', 'ERR_CALL', 'ERR_DEFAULT', 'ERR_DEFAULT2', 'ERR_IGNORE', 'ERR_LOG', 'ERR_PRINT', 'ERR_RAISE', 'ERR_WARN', 'FLOATING_POINT_SUPPORT', 'FPE_DIVIDEBYZERO', 'FPE_INVALID', 'FPE_OVERFLOW', 'FPE_UNDERFLOW', 'False_', 'Inf', 'Infinity', 'MAXDIMS', 'MachAr', 'NAN', 'NINF', 'NZERO', 'NaN', 'PINF', 'PZERO', 'PackageLoader', 'RAISE', 'RankWarning', 'SHIFT_DIVIDEBYZERO', 'SHIFT_INVALID', 'SHIFT_OVERFLOW', 'SHIFT_UNDERFLOW', 'ScalarType', 'Tester', 'True_', 'UFUNC_BUFSIZE_DEFAULT' ... I see this might be a dictionary. What can I do to make it more readable or useful, or is that it? Is there a more abc as in Linux? It the IDLE shell, it's not possible to retrieve lines entered earlier without copying them. Is there an edit facility? -- http://mail.python.org/mailman/listinfo/python-list
