[Tutor] noob
Dear Tutors: Thank you for your time.I am trying to do first assignment (ps1a+b) onMIT open study, finding the 1000th prime in part a and doing something with import.math and logs in part b, but I'm not there yet. The little build i did to find primes does fine until, for some reason, 95 shows up, and later other multiples of 5 jump into the mix without being invited.I end up almost 200 primes off by the 1000 count. Is it me? Have uninstalled and reinstalled 2.7 twice. Here is code: per = 25 num = 3 yep = 0 while per 0: for den in range(2, num): if num % den == 0: num = num + 2 else: yep = (num) print yep per = per - 1 num = num + 2 thank you again, M___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Temperature Scales
Andre Jeyarajan andrejeyara...@rogers.com wrote Write two functions that will convert temperatures back and forth from the Celsius and Fahrenheit temperature scales (using raw_input) If we ignore the raw_input bit you have done what you were asked. def C_F(x): y = (x-32)*(5.0/9) print y Although as a stylistic point it is better to return values from functions rather than print the values inside the functions. You can then print the result of the function like this: print C_F(x) def F_C(x): y = (x*9.0/5)+32 print y I have created the two functions but I don’t know what to do from here. I suspect the assignment expects you to provide some code that uses them, to show they work. Given the raw_input hint I'd surmise they want you to ask the user for a temperature in C or F and use your functions to print the corresponding temperature in the other scale. You will need to convert the raw_input value to an integer for the functions to work. Can you do that? -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] noob
Mary sharky5...@comcast.net wrote finding the 1000th prime The little build i did to find primes does fine until, for some reason, 95 shows up, and later other multiples of 5 .Is it me? Have uninstalled and reinstalled 2.7 twice. It is always tempting when you start programming to assume there must be something wrong with the tool. Sadly, it is virtually never the case, it is the programmer at fault. :-) I've added some questions/comments below... per = 25 # not sure why you start at 25... num = 3 # I'm assuming this is the number under test? yep = 0 # and this is the count of primes? while per 0: for den in range(2, num): # den is denominator maybe? if num % den == 0: # this bit puzzles me. num = num + 2 else: yep = (num) # what do you think the parentheses do here? print yep per = per - 1 num = num + 2 I confess I don't follow the algorithm here, I'm not sure where the primes are being stored, I don't know how you detect when you have reached the 1000th. I'm not even sure there is a valid test for a prime. Try searching wikipedia, there are easier ways to find primes and there are also easier ways to find a specific prime. Getting the algorithm right is the first challenge, coding it is the easy bit. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] noob
On Mon, Nov 29, 2010 at 6:57 AM, Mary sharky5...@comcast.net wrote: Dear Tutors: Thank you for your time.I am trying to do first assignment (ps1a+b) onMIT open study, finding the 1000th prime in part a and doing something with import.math and logs in part b, but I'm not there yet. The little build i did to find primes does fine until, for some reason, 95 shows up, and later other multiples of 5 jump into the mix without being invited.I end up almost 200 primes off by the 1000 count. Is it me? Have uninstalled and reinstalled 2.7 twice. Here is code: Your primality tester is incorrect. When you find a divisor you go on to check the number that is 2 more, but you start with the same divisor. If the new number you check is not a prime number, but only has divisors smaller than the checked divisor, your program will falsely recognize it as prime. To make it more clear what I mean, I will show how your program finds 95 to be prime: 89 was a prime, and next the program checks 91. 91 is not divisible by 2. 91 is not divisible by 3. 91 is not divisible by 4. 91 is not divisible by 5. 91 is not divisible by 6. 91 is divisible by 7 - not prime! check 93 instead 93 is not divisible by 7. 93 is not divisible by 8. ... 93 is not divisible by 30. 93 is divisible by 31 - not prime! check 95 instead 95 is not divisible by 31. ... 95 is not divisible by 90. Checked all numbers smaller than 91, so 95 is prime. -- André Engels, andreeng...@gmail.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python Exercise
Providing trial section alone will not make much difference. You should consider removing the need to sign in as well and focus on providing great tutorial content. Good luck On Sun, Nov 28, 2010 at 2:43 AM, Kok Cheng Tan tkokc...@gmail.com wrote: Hi, Thanks for the feedback. I will add a trial section that doesn't require login so that new visitors are able to give the website a try. Regards, Kok Cheng -- Forwarded message -- From: tutor-requ...@python.org Date: Sun, Nov 28, 2010 at 2:41 AM Subject: Tutor Digest, Vol 81, Issue 105 To: tutor@python.org Send Tutor mailing list submissions to tutor@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/tutor or, via email, send a message with subject or body 'help' to tutor-requ...@python.org You can reach the person managing the list at tutor-ow...@python.org When replying, please edit your Subject line so it is more specific than Re: Contents of Tutor digest... Today's Topics: 1. Python Exercise (Kok Cheng Tan) 2. Reload() in v3? WAS Re: IDEs (Alan Gauld) 3. Re: Reload() in v3? WAS Re: IDEs (Alan Gauld) 4. Re: Python Exercise (Mac Ryan) 5. Re: normalize an array (Eike Welk) 6. Python Exercise (pa...@cruzio.com) 7. Re: Python Exercise (Joel Schwartz) 8. Re: normalize an array (John) -- Message: 1 Date: Sat, 27 Nov 2010 22:00:03 +0800 From: Kok Cheng Tan tkokc...@gmail.com To: tutor@python.org Subject: [Tutor] Python Exercise Message-ID: aanlkti=efho9tvndsejh=xw2=ca3t7kzrrk51-ph-...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Hi, I created this website for practising python online: http://www.pyschools.com. Hope to gather feedback from people here who are interesting in teaching and learning python. Regards, Kok Cheng -- Message: 2 Date: Sat, 27 Nov 2010 15:04:57 - From: Alan Gauld alan.ga...@btinternet.com To: tutor@python.org Subject: [Tutor] Reload() in v3? WAS Re: IDEs Message-ID: icr6ml$ob...@dough.gmane.org Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response Steven D'Aprano st...@pearwood.info wrote The other nine times out of ten *wink* I need to do debugging, and I swap tabs and work in my interactive Python interpreter. import filename # first time only reload(filename) # all subsequent times I'm working on the v3 version of my tutor and while testing some module code I tried to reload the module in IDLE... I got an error: import os reload(os) Traceback (most recent call last): File pyshell#65, line 1, in module reload(os) NameError: name 'reload' is not defined Has reload been removed in V3? Whats the alternative? Does a repeated import auto-reload? I'm surprised and confused... -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ -- Message: 3 Date: Sat, 27 Nov 2010 15:11:53 - From: Alan Gauld alan.ga...@btinternet.com To: tutor@python.org Subject: Re: [Tutor] Reload() in v3? WAS Re: IDEs Message-ID: icr73l$q2...@dough.gmane.org Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=response Alan Gauld alan.ga...@btinternet.com wrote Has reload been removed in V3? Whats the alternative? Does a repeated import auto-reload? I'm surprised and confused... Found it, its been moved into the imp module. You need to import imp and then do imp.reload(foo) import os reload(os) Traceback (most recent call last): File pyshell#65, line 1, in module reload(os) NameError: name 'reload' is not defined import imp imp.reload(os) module 'os' from 'C:\Python31\lib\os.py' I wonder why that was considered a good idea? Alan G. -- Message: 4 Date: Sat, 27 Nov 2010 18:12:59 +0100 From: Mac Ryan quasipe...@gmail.com To: tutor@python.org Subject: Re: [Tutor] Python Exercise Message-ID: 20101127181259.770ea...@jabbar Content-Type: text/plain; charset=US-ASCII On Sat, 27 Nov 2010 22:00:03 +0800 Kok Cheng Tan tkokc...@gmail.com wrote: I created this website for practising python online: http://www.pyschools.com. Hope to gather feedback from people here who are interesting in teaching and learning python. Here you go with the first suggestion: remove the need to log in! (Haven't really watched at the site content, given that I - like 99% of the Internet users - wouldn't bother to login just to roam around a site). Mac. -- Message: 5 Date: Sat, 27 Nov 2010 18:44:25 +0100 From: Eike Welk eike.w...@gmx.net To: tutor@python.org Subject: Re: [Tutor] normalize an array Message-ID: 201011271845.38868.eike.w...@gmx.net Content-Type: Text/Plain;
Re: [Tutor] temporarily modifying sys.path
Alan Gauld wrote:
Tim Johnson t...@johnsons-web.com wrote
Just curious, but could the imp module help you? imp.find_module
I'll be darned. I never even heard of that module, but I just
did an import and looked at the docs. I *will* give that a try.
I think its new in Python v3...
Nah, it's been around forever:
[st...@sylar ~]$ python1.5
Python 1.5.2 (#1, Apr 1 2009, 22:55:54) [GCC 4.1.2 20070925 (Red Hat
4.1.2-27)] on linux2
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
import imp
imp.find_module('math')
(None, 'math', ('', '', 6))
--
Steven
___
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
[Tutor] age program
Write a short program that will perform the following:It will ask the user for his age,it will then present the user with a menu, with 4 choices:Tell the user whether his age is an even or an odd number Tell the user his age squared Tell the user how many years until he’s 100 years old, or tell him that he’s alerady over 100! If the user is exactly 100 years old, congratulate him for being a centurion. I have tried everything i can. Can you please explain it to me?___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] age program
We will not make your homework for you. However, we may well give you hints and perhaps solve small parts that you are unable to do yourself. For that, however, we need to know *what* it is that you are having problems with. Thus: You said that you have tried everything you can. What have you tried? What part(s) of the problem are you able to solve? What part(s) of the problem are you not able to solve? On Mon, Nov 29, 2010 at 3:29 PM, Andre Jeyarajan andrejeyara...@rogers.comwrote: Write a short program that will perform the following: It will ask the user for his age, it will then present the user with a menu, with 4 choices: 1. Tell the user whether his age is an even or an odd number 2. Tell the user his age squared 3. Tell the user how many years until he’s 100 years old, or tell him that he’s alerady over 100! If the user is exactly 100 years old, congratulate him for being a centurion. I have tried everything i can. Can you please explain it to me? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- André Engels, andreeng...@gmail.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] age program
On 11/29/10, Andre Jeyarajan andrejeyara...@rogers.com wrote: Write a short program that will perform the following:It will ask the user for his age,it will then present the user with a menu, with 4 choices:Tell the user whether his age is an even or an odd number Tell the user his age squared Tell the user how many years until he’s 100 years old, or tell him that he’s alerady over 100! If the user is exactly 100 years old, congratulate him for being a centurion. I have tried everything i can. Can you please explain it to me? Explain which part exactly? That is, what have you gotten to work so far? If you have not gotten anything yet, I recommend looking up the input() and raw_input() methods for age and menu. After that it is just a couple math operations and some if statements inside a while loop. -- Have a great day, Alex (msg sent from GMail website) mehg...@gmail.com; http://www.facebook.com/mehgcap ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] temporarily modifying sys.path
Steven D'Aprano st...@pearwood.info wrote I think its new in Python v3... Nah, it's been around forever: [st...@sylar ~]$ python1.5 Wow, I've never even noticed it before, let alone used it... Its amazing what that battery pack contains :-) Alan G ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Web Harvesting AJAX/Javascript
All, I am working on a project to automate the harvesting of a site that uses Javascript throughout it's navigation. So, I want to follow onclick and mouseover events that use JS functions, and capture/display the resulting info. My script is activated by an onload event. I just want to make sure that I am headed in the right direction, and not missing something!. Any advise or pointers appreciated. Researching this has led me to PAMIE and Selenium. PAMIE is giving me problems with permissions, and the discussion group appears to be fading away. I have not tried Selenium yet. Both open a browser instance, and PAMIE is quite slow, and I expect Selenium to be quite slow as well. How are you navigating around these Javascript based pages? Is there a library or plugin that I am missing? Thanks in advance. -- Roy Hinkelman **Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.-- Albert Einstein ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] age program
Andre Jeyarajan andrejeyara...@rogers.com wrote Write a short program that will perform the following:It will ask the user for his age Since you have posted a number of what are obviously homework/assignment type questions it might help if you tell us what course you are studying, what topics you have covered etc? Usually assignments are designed to test what you have just learned. But we don't know what aspect of Python these are supposed to be testing! Also, for homeworks we do expect you to post at least some code to show you tried to solve it yourself. Its usually easier for us to point out where you are going wrong and suggest improvements than to start with a blank sheet. If nothing else the broken code will tell us a lot about how you are thinking about the problem. Alan G. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Package loading
Hello every one, I created a package with the following structure: * ops/ o __init__.py o tcl/ + __init__.py + pythontcl.py *python -c import sys; print sys.path; import ops.tcl.pythontcl* ['', '/usr/local/lib/python2.6/dist-packages/pyparsing-1.5.5-py2.6.egg', '*/home/karim/build/UML2PDK/lib/python*', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', '/usr/local/lib/python2.6/dist-packages'] /*home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:109: RuntimeWarning: Parent module 'pythontcl' not found while handling absolute import import unittest /home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:110: RuntimeWarning: Parent module 'pythontcl' not found while handling absolute import import sys* At the lines I import standard modules sys and unittest I get these non-sense warning (my consideration) though I added the top package root, namely, */home/karim/build/UML2PDK/lib/python. The programesecute correctly but I alaways get this nerving warning. *Any idea will be welcome!* :-) *Regards Karim* * ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Web Harvesting AJAX/Javascript
On 11/29/2010 11:42 AM Roy Hinkelman said... All, I am working on a project to automate the harvesting of a site that uses Javascript throughout it's navigation. So, I want to follow onclick and mouseover events that use JS functions, and capture/display the resulting info. My script is activated by an onload event. I just want to make sure that I am headed in the right direction, and not missing something!. Any advise or pointers appreciated. Researching this has led me to PAMIE and Selenium. PAMIE is giving me problems with permissions, and the discussion group appears to be fading away. I have not tried Selenium yet. Both open a browser instance, and PAMIE is quite slow, and I expect Selenium to be quite slow as well. How are you navigating around these Javascript based pages? Is there a library or plugin that I am missing? Hi Roy, I've had a couple of these types of projects on my ToDo list for a while and haven't researched them yet. I suspect you'll get better traction on the main python list, but I've been surprised before... Looking forward to seeing what direction you get pointed in. Emile ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/28/2010 8:06 PM, Walter Prins wrote: John, (snip stuff) Ugh, you're probably not going to like this. I've done some googling and it appears this may be a 64-bit issue with the ctypes module... apparently 64-bit ctypes can only import 64-bit libraries. See here: http://ur.ly/vSMQ Then again, it also seems to be an open issue on the PySerial bug tracker: http://ur.ly/vZNL Note, the above ticket suggests that PySerial 2.4 works ok (impliedly even on 64-bit XP, so I imagine also on Windows 7.) You should be able to try this out by downloading the 2.4 version instead and installing it in the same way you did the 2.5 version. In any case, it might be an idea to post a report/add a comment to that bug report as well to maybe help get this issue resolved. Cheers, Walter Hi, Walter - Thanks for all the research. This was my second attempt at installing the 2.4 version. I did it thus: E:\Python27\pyserial-2.4..\python setup.py install standart distutils running install running build running build_py creating build creating build\lib creating build\lib\serial copying serial\serialcli.py - build\lib\serial copying serial\serialjava.py - build\lib\serial copying serial\serialposix.py - build\lib\serial copying serial\serialutil.py - build\lib\serial copying serial\serialwin32.py - build\lib\serial copying serial\sermsdos.py - build\lib\serial copying serial\__init__.py - build\lib\serial running install_lib running install_egg_info Removing E:\Python27\Lib\site-packages\pyserial-2.4-py2.7.egg-info Writing E:\Python27\Lib\site-packages\pyserial-2.4-py2.7.egg-info E:\Python27\pyserial-2.4 But, when I tried it in Python, I got the same as before: import serial ser = serial.Serial(0, timeout = 1) ser Serialid=0x225c240, open=True(port='COM1', baudrate=9600, bytesize=8, parity='N', stopbits=1, timeout=1, xonxoff=False, rtscts=False, dsrdtr=False) ser.read() Traceback (most recent call last): File pyshell#3, line 1, in module ser.read() File E:\Python27\lib\site-packages\serial\serialwin32.py, line 236, in read raise SerialException(ReadFile failed (%s) % ctypes.WinError()) SerialException: ReadFile failed ([Error 6] The handle is invalid.) Cheers, John ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/29/2010 1:44 PM John Smith said... But, when I tried it in Python, I got the same as before: import serial ser = serial.Serial(0, timeout = 1) out of curiosity, if you change the timeout above to 5 ser Serialid=0x225c240, open=True(port='COM1', baudrate=9600, bytesize=8, parity='N', stopbits=1, timeout=1, xonxoff=False, rtscts=False, dsrdtr=False) ser.read() ... does the delay before printing the traceback below take about 5 seconds? Traceback (most recent call last): File pyshell#3, line 1, in module ser.read() File E:\Python27\lib\site-packages\serial\serialwin32.py, line 236, in read raise SerialException(ReadFile failed (%s) % ctypes.WinError()) SerialException: ReadFile failed ([Error 6] The handle is invalid.) Emile ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/29/2010 4:20 PM, Emile van Sebille wrote: On 11/29/2010 1:44 PM John Smith said... But, when I tried it in Python, I got the same as before: import serial ser = serial.Serial(0, timeout = 1) out of curiosity, if you change the timeout above to 5 ser Serialid=0x225c240, open=True(port='COM1', baudrate=9600, bytesize=8, parity='N', stopbits=1, timeout=1, xonxoff=False, rtscts=False, dsrdtr=False) ser.read() ... does the delay before printing the traceback below take about 5 seconds? No. There is no delay regardless of the timeout setting. John ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/29/2010 3:25 PM John Smith said... On 11/29/2010 4:20 PM, Emile van Sebille wrote: On 11/29/2010 1:44 PM John Smith said... But, when I tried it in Python, I got the same as before: import serial ser = serial.Serial(0, timeout = 1) out of curiosity, if you change the timeout above to 5 ser Serialid=0x225c240, open=True(port='COM1', baudrate=9600, bytesize=8, parity='N', stopbits=1, timeout=1, xonxoff=False, rtscts=False, dsrdtr=False) ser.read() ... does the delay before printing the traceback below take about 5 seconds? No. There is no delay regardless of the timeout setting. Traceback (most recent call last): File pyshell#3, line 1, in module ser.read() File E:\Python27\lib\site-packages\serial\serialwin32.py, line 236, in read raise SerialException(ReadFile failed (%s) % ctypes.WinError()) SerialException: ReadFile failed ([Error 6] The handle is invalid.) Hmmm... any chance you don't have administrative rights on the account performing this? I never got to Win7 (having stopped at XP) but I know it's got a reputation for excessive permission asking. Otherwise, I'd take this up on the main list. Chris Liechti, the [author|current maintainer|significant contributor] of pyserial monitors that list and would probably be interested in diagnosing what you're describing. You could also ask him as per the 'send me a message' link on his sourceforge page at http://sourceforge.net/sendmessage.php?touser=403744 Emile ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Package loading
On 11/29/2010 09:15 PM, Karim wrote: Hello every one, I created a package with the following structure: * ops/ o __init__.py o tcl/ + __init__.py + pythontcl.py *python -c import sys; print sys.path; import ops.tcl.pythontcl* ['', '/usr/local/lib/python2.6/dist-packages/pyparsing-1.5.5-py2.6.egg', '*/home/karim/build/UML2PDK/lib/python*', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', '/usr/local/lib/python2.6/dist-packages'] /*home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:109: RuntimeWarning: Parent module 'pythontcl' not found while handling absolute import import unittest /home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:110: RuntimeWarning: Parent module 'pythontcl' not found while handling absolute import import sys* At the lines I import standard modules sys and unittest I get these non-sense warning (my consideration) though I added the top package root, namely, */home/karim/build/UML2PDK/lib/python. The programesecute correctly but I alaways get this nerving warning. *Any idea will be welcome!* :-) *Regards Karim* * I believed I know why: Traceback (most recent call last): File string, line 1, in module File /home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py, line 119, in module print sys.modules[__package__] KeyError: 'pythontcl' It is due to method determine parent in class ModuleImporter. I don't know why sys.modules has the key 'ops.tcl.pythontcl' and this class search for the key module 'pythontcl'. Big mess between relative path or whatever. Any idea to fix that? Karim ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/29/2010 5:56 PM, Emile van Sebille wrote: (snip) Hmmm... any chance you don't have administrative rights on the account performing this? I never got to Win7 (having stopped at XP) but I know it's got a reputation for excessive permission asking. You're right about that. It's like Win7 is paranoid. But, it tells me when I need to supply administrative permission. Some day I'll find the button that tells the system that nobody else uses this computer and to shut up and get on with it. Otherwise, I'd take this up on the main list. Chris Liechti, the [author|current maintainer|significant contributor] of pyserial monitors that list and would probably be interested in diagnosing what you're describing. You could also ask him as per the 'send me a message' link on his sourceforge page at http://sourceforge.net/sendmessage.php?touser=403744 Emile I'll consider that, Emile. First, though, I would like to hear from Walter again after my last post. Thanks for your suggestions. Cheers, John ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] REport Card Question
Write a code that will take an input from a user (numerical grade) and
convert their numerical grade into a letter grade that is accompanied by a
?smart? statement.
def grade_score(grade):
if grade =95 and grade = 100:
print 'A+, Excellent'
elif grade =85 and grade 95:
print 'A, Good Work'
elif grade =80 and grade 85:
print 'A-, Good Work, but you could do better'
[snip]
grade = raw_input('Put your grade here:?)
grade_score()
Put your grade here:77
Traceback (most recent call last):
File /Users/andre.jeyarajan/Documents/workspace/Chapter 5
Problems/src/ReportCardQuestion.py, line 28, in module
grade_score()
This line tells you why it doesn't work:
TypeError: grade_score() takes exactly 1 argument (0 given)
Are you familiar with functions? When you define the function you define it
as taking one parameter:
def grade_score(grade):
# Code here
but then when you call it:
grade_score()
you don't give it any parameters (or arguments). The traceback tells you
that you need to provide it 1 argument and that you gave it 0 instead.
If you called
grade_score(3, 150)
you would get a similar error, only it would say (2 given) instead.
HTH,
Wayne
On a related note, do all functions implicitly contain return None
in them? Trying out this function (correctly) would get None added,
such as:
Enter grade:76
B, Try Harder
None
Is there a way to avoid return None without explicitly having the
function return something? Even an empty string will return a new
line.
best regards,
Robert S.
___
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] REport Card Question
On Mon, Nov 29, 2010 at 8:28 PM, Robert Sjöblom robert.sjob...@gmail.comwrote: snip On a related note, do all functions implicitly contain return None in them? Trying out this function (correctly) would get None added, such as: Enter grade:76 B, Try Harder None Is there a way to avoid return None without explicitly having the function return something? Even an empty string will return a new line. AFAIK, no. Nor am I sure why you would want to - None is a singleton so there can only be once instance of it at a time. None is only printed when you're working in the interactive interpreter - if you write the program in a .py file and execute it you won't see the 'None' unless you print the result (which would indeed be None!) HTH, Wayne ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On Mon, Nov 29, 2010 at 8:21 PM, John Smith jocj...@verizon.net wrote: On 11/29/2010 5:56 PM, Emile van Sebille wrote: (snip) Hmmm... any chance you don't have administrative rights on the account performing this? I never got to Win7 (having stopped at XP) but I know it's got a reputation for excessive permission asking. You're right about that. It's like Win7 is paranoid. But, it tells me when I need to supply administrative permission. Some day I'll find the button that tells the system that nobody else uses this computer and to shut up and get on with it. Just so you know, Its called User Account Control or UAC. Google for disabling UAC on Windows 7 and you can find a tutorial or two on how to make your computer shut up and get on with it. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pyserial and invalid handle
On 11/29/2010 9:41 PM, Rance Hall wrote: On Mon, Nov 29, 2010 at 8:21 PM, John Smithjocj...@verizon.net wrote: On 11/29/2010 5:56 PM, Emile van Sebille wrote: (snip) Hmmm... any chance you don't have administrative rights on the account performing this? I never got to Win7 (having stopped at XP) but I know it's got a reputation for excessive permission asking. You're right about that. It's like Win7 is paranoid. But, it tells me when I need to supply administrative permission. Some day I'll find the button that tells the system that nobody else uses this computer and to shut up and get on with it. Just so you know, Its called User Account Control or UAC. Google for disabling UAC on Windows 7 and you can find a tutorial or two on how to make your computer shut up and get on with it. Hey, thanks Rance. The info is appreciated. Cheers, John ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
