Very strange issues with collections.Mapping

Hello! I am running into a very perplexing issue that is very rare, but creeps up and is crashing my app. The root cause of the issue comes down to the following check returning true: isinstance([], collections.Mapping) Obviously you can get this behavior if you register `list` as a subclass

Re: Computational Chemistry Analysis

On Wed, Feb 24, 2016 at 8:01 PM, Feagans, Mandy wrote: > Dear Python, > > > Hi! I am a student interested in conducting computational analysis of > protein-ligand binding for drug development analysis. Recently, I read of > an individual using a python program for their

Re: [STORY-TIME] THE BDFL AND HIS PYTHON PETTING ZOO

On Sun, Feb 7, 2016 at 2:58 AM, Chris Angelico wrote: > > Would writing a script to figure out whether there are more > statisticians or programmers be a statistician's job or a > programmer's? > ​Yes. -- https://mail.python.org/mailman/listinfo/python-list

Re: ts.plot() pandas: No plot!

On Sun, Jan 31, 2016 at 9:08 PM, Paulo da Silva < p_s_d_a_s_i_l_v_a...@netcabo.pt> wrote: > Às 01:43 de 01-02-2016, Mark Lawrence escreveu: > > On 01/02/2016 00:46, Paulo da Silva wrote: > ... > > >> > > > > Is it as simple as adding a call to ts.show() ? > > > Thanks for the clue! > Not so

Re: Why generators take long time?

On Tue, Jan 19, 2016 at 3:19 PM, Jason Swails <jason.swa...@gmail.com> wrote: > > I use generator expressions when > > - I *might* want to > ​I forgot to finish my thought here. I use generator expressions when I don't want to worry about memory, there's a decent chanc

Re: Why generators take long time?

On Tue, Jan 19, 2016 at 2:27 AM, Arshpreet Singh wrote: > > I was playing with Generators and found that using Generators time is bit > more than list-comprehensions or I am doing it wrong? > > > Function with List comprehensions: > > def sum_text(number_range): > return

Re: What use of these _ prefix members?

On Tue, Jan 12, 2016 at 9:12 AM, me wrote: > On 2016-01-10, Peter Otten <__pete...@web.de> wrote: > class Derived(Base): > > ... def _init(self, x): > > ... super()._init(x) > > ... print("do something else with", x) > > ... > Derived(42) > > do

Re: What is the meaning of Py_INCREF a static PyTypeObject?

On Thu, Nov 12, 2015 at 3:05 AM, Xiang Zhang <18518281...@126.com> wrote: > Recently I am learning Python C API. > > When I read the tutorial < > https://docs.python.org/3/extending/newtypes.html#the-basics>, defining > new types, I feel confused. After PyType_Ready(_NoddyType) comes >

Re: Stylistic question regarding no-op code and tests

On Wed, Oct 14, 2015 at 10:07 PM, Ben Finney <ben+pyt...@benfinney.id.au> wrote: > Jason Swails <jason.swa...@gmail.com> writes: > > > What I recently realized, though, that what this construct allows is > > for the coverage testing package (which I have recentl

Stylistic question regarding no-op code and tests

Hi everyone, I'd like to get some opinions about some coding constructs that may seem at first glance to serve no purpose, but does have *some* non-negligible purpose, and I think I've come to the right place :). The construct is this: def my_function(arg1, arg2, filename=None): """ Some

Re: Strong typing implementation for Python

On Mon, Oct 12, 2015 at 1:50 PM, Bartc wrote: > On 12/10/2015 18:20, Marko Rauhamaa wrote: > >> Bartc : >> >> (Example, calling fib(40) on the example below took 90 seconds on >>> Python 3.4, 11 seconds with PyPy, but only 1.8 seconds running the >>> equivalent

Re: Script To Remove Files Made Either By Python Or Git

On Fri, Oct 9, 2015 at 6:08 AM, Joshua Stokes wrote: > Hi > > Is there an available script to remove file created by either using the > Python module or by using git? > ​There's always this nugget: git clean -fxd This will get rid of *all* untracked files in the

Re: netcdf read

On Tue, Sep 1, 2015 at 2:07 PM, Chris Angelico wrote: > On Wed, Sep 2, 2015 at 3:23 AM, wrote: > > I'm starting in the Python scripts. I run this script: > > > > > > import numpy as np > > > > import netCDF4 > > > > f =

Re: problem with netCDF4 OpenDAP

On Aug 14, 2015, at 3:18 AM, Tom P werot...@freent.dd wrote: Thanks for the reply but that is not what the documentation says. http://unidata.github.io/netcdf4-python/#section8 Remote OPeNDAP-hosted datasets can be accessed for reading over http if a URL is provided to the

Re: problem with netCDF4 OpenDAP

On Thu, Aug 13, 2015 at 6:32 AM, Tom P werot...@freent.dd wrote: I'm having a problem trying to access OpenDAP files using netCDF4. The netCDF4 is installed from the Anaconda package. According to their changelog, openDAP is supposed to be supported. netCDF4.__version__ Out[7]: '1.1.8'

Re: How Do I ............?

On Fri, Jul 31, 2015 at 9:21 PM, Steve Burrus steveburru...@gmail.com wrote: How Do I access tkinter in Python 3.4 anyway? I've tried and tried but cannot do it. ​You import it. If I play mind-reader for a second, I suspect you're trying to do in Python 3 what you did in Python 2. That

Re: Is there a way to install ALL Python packages?

On Tue, Jul 21, 2015 at 10:58 PM, ryguy7272 ryanshu...@gmail.com wrote: On Monday, July 20, 2015 at 10:57:47 PM UTC-4, ryguy7272 wrote: I'd like to install ALL Python packages on my machine. Even if it takes up 4-5GB, or more, I'd like to get everything, and then use it when I need it.

Re: Should non-security 2.7 bugs be fixed?

I am a little late to the party, but I feel that I have something to contribute to this discussion. Apologies for the top-post, but it's really in response to any particular question; more of a this is my story with Python 2.7. I still use primarily Python 2.7, although I write code using six to

Re: Bug in floating point multiplication

On Mon, Jul 6, 2015 at 11:44 AM, Oscar Benjamin oscar.j.benja...@gmail.com wrote: On Sat, 4 Jul 2015 at 02:12 Jason Swails jason.swa...@gmail.com wrote: On Fri, Jul 3, 2015 at 11:13 AM, Oscar Benjamin oscar.j.benja...@gmail.com wrote: On 2 July 2015 at 18:29, Jason Swails jason.swa

Re: Should iPython Notebook replace Idle

On Fri, Jul 3, 2015 at 10:01 PM, Sayth Renshaw flebber.c...@gmail.com wrote: In future releases of Python should ipython Notebooks replace idle as the default tool for new users to learn python? This would as I see it have many benefits? 1. A nicer more usual web interface for new users.

Re: Bug in floating point multiplication

On Fri, Jul 3, 2015 at 11:13 AM, Oscar Benjamin oscar.j.benja...@gmail.com wrote: On 2 July 2015 at 18:29, Jason Swails jason.swa...@gmail.com wrote: As others have suggested, this is almost certainly a 32-bit vs. 64-bit issue. Consider the following C program: // maths.h #include

Re: Bug in floating point multiplication

On Thu, Jul 2, 2015 at 10:52 AM, Steven D'Aprano st...@pearwood.info wrote: Despite the title, this is not one of the usual Why can't Python do maths? bug reports. Can anyone reproduce this behaviour? If so, please reply with the version of Python and your operating system. Printing

Re: Memory error while using pandas dataframe

On Mon, Jun 8, 2015 at 3:32 AM, naren naren...@gmail.com wrote: Memory Error while working with pandas dataframe. Description of Environment Windows 7 python 3.4.2 32-bit version pandas 0.16.0 We are running into the error described below. Any help provided will be sincerely appreciated.

Re: What is considered an advanced topic in Python?

On Fri, May 29, 2015 at 5:06 PM, sohcahto...@gmail.com wrote: For example, the new (in 3.4) Enum class uses a metaclass. class SomeEnum(Enum): first = 1 second = 2 third = 3 The metaclass changes normal class behavior to: - support iterating:

Re: Best way to calculate fraction part of x?

On Mon, Mar 23, 2015 at 8:38 PM, Emile van Sebille em...@fenx.com wrote: On 3/23/2015 5:52 AM, Steven D'Aprano wrote: Are there any other, possibly better, ways to calculate the fractional part of a number? float ((%6.3f % x)[-4:]) ​In general you lose a lot of precision this way...​

Re: Brilliant or insane code?

On Wed, 2015-03-18 at 00:35 +, Mark Lawrence wrote: I've just come across this http://www.stavros.io/posts/brilliant-or-insane-code/ as a result of this http://bugs.python.org/issue23695 Any and all opinions welcomed, I'm chickening out and sitting firmly on the fence. I'll go with

Re: Adding a 'struct' into new python type

On Sat, Mar 7, 2015 at 4:15 AM, Lakshmipathi.G lakshmipath...@gmail.com wrote: Hi, I'm following this example : http://nedbatchelder.com/text/whirlext.html#h_making_a_type and trying to add new data into 'CountDict' type Adding a simple 'char' works well. typedef struct {

Re: Parallelization of Python on GPU?

On Thu, 2015-02-26 at 14:02 +1100, Steven D'Aprano wrote: John Ladasky wrote: What I would REALLY like to do is to take advantage of my GPU. I can't help you with that, but I would like to point out that GPUs typically don't support IEE-754 maths, which means that while they are

Re: Building C++ modules for python using GNU autotools, automake, whatever

On Thu, 2015-02-26 at 07:57 -0800, af300...@gmail.com wrote: Hi, I'm a complete neophyte to the whole use of GNU autotools/automake/auto... . (I'm not sure what it should be called anymore.) Regardless, I'm porting a library project, for which I'm a team member, to using this toolset for

Re: Parallelization of Python on GPU?

On Wed, 2015-02-25 at 18:35 -0800, John Ladasky wrote: I've been working with machine learning for a while. Many of the standard packages (e.g., scikit-learn) have fitting algorithms which run in single threads. These algorithms are not themselves parallelized. Perhaps, due to their unique

Re: Parallelization of Python on GPU?

On Thu, 2015-02-26 at 16:53 +, Sturla Molden wrote: GPU computing is great if you have the following: 1. Your data structures are arrays floating point numbers. It actually works equally great, if not better, for integers. 2. You have a data-parallel problem. This is the biggest one,

Re: Parallelization of Python on GPU?

On Thu, Feb 26, 2015 at 4:10 PM, Sturla Molden sturla.mol...@gmail.com wrote: On 26/02/15 18:48, Jason Swails wrote: On Thu, 2015-02-26 at 16:53 +, Sturla Molden wrote: GPU computing is great if you have the following: 1. Your data structures are arrays floating point numbers

Re: A question about how plot from matplotlib works

On Thu, Feb 19, 2015 at 5:47 AM, ast nom...@invalid.com wrote: Hello import numpy as np import matplotlib.pyplot as plt x = np.arange(10) y = x**2 x array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) y array([ 0, 1, 4, 9, 16, 25, 36, 49, 64, 81]) plt.plot(x,y) [matplotlib.lines.Line2D

Neat little programming puzzle

This was a problem posed to me, which I solved in Python. I thought it was neat and enjoyed the exercise of working through it; feel free to ignore. For people looking for little projects to practice their skills with (or a simple distraction), read on. You have a triangle of numbers such that

Re: Python extension using a C library with one 'hello' function

On Tue, 2014-11-04 at 16:22 +0630, Veek M wrote: https://github.com/Veek/Python/tree/master/junk/hello doesn't work. I have: hello.c which contains: int hello(void); hello.h To wrap that up, i have: hello.py - _hello (c extension) - pyhello.c - method py_hello() People using this will

Re: Python extension using a C library with one 'hello' function

On Tue, 2014-11-04 at 21:45 +0630, Veek M wrote: Jason Swails wrote: I've submitted a PR to your github repo showing you the changes necessary to get your module working on my computer. Segfaults :p which is an improvement :) What operating system are you running this on? It works fine

Re: Python extension using a C library with one 'hello' function

On Tue, Nov 4, 2014 at 11:09 AM, Veek M vek.m1...@gmail.com wrote: static PyMethodDef hellomethods[] = { {hello, py_hello, METH_VARARGS, py_hello_doc}, {NULL, NULL, 0, NULL}, }; It's basically the METH_VARARGS field that's giving the problem. Switching it to NULL gives,

Re: Python extension using a C library with one 'hello' function

On Tue, 2014-11-04 at 23:03 +0630, Veek M wrote: okay got it working - thanks Jason! The 3.2 docs are slightly different. What did you need to do to get it working? -- https://mail.python.org/mailman/listinfo/python-list

Re: [OT] Question about Git branches

On Tue, 2014-09-16 at 10:59 +0200, Frank Millman wrote: Chris Angelico ros...@gmail.com wrote in message news:CAPTjJmr5gh8=1zPjG_KdTmA2QgT_5jj=kh=jyvrfv1atl1e...@mail.gmail.com... On Tue, Sep 16, 2014 at 6:21 PM, Marko Rauhamaa ma...@pacujo.net wrote: Frank Millman fr...@chagford.com:

Re: Why does str not have a __radd__ method?

On Wed, Aug 13, 2014 at 1:55 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: Ethan Furman wrote: On 08/13/2014 09:00 AM, Steven D'Aprano wrote: What is the rationale for str not having __radd__ method? At a guess I would say because string only knows how to add itself

Re: My sys.excepthook dies painfully

On Wed, Jul 23, 2014 at 6:30 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: On Wed, 23 Jul 2014 13:02:51 -0700, Jason Swails wrote: I'm not sure how the mylogger variable is getting set to None in your my_error_handler callback, but I don't see how that can possibly

Re: My sys.excepthook dies painfully

On Jul 23, 2014, at 1:02 AM, Chris Angelico ros...@gmail.com wrote: On Wed, Jul 23, 2014 at 5:46 PM, Steven D'Aprano st...@pearwood.info wrote: On Wed, 23 Jul 2014 07:14:27 +, Steven D'Aprano wrote: I have some code which sets up a logger instance, then installs it as sys.excepthook to

Re: This Python 3 is killing Python thread is killing me.

On Wed, Jul 16, 2014 at 11:40 AM, Mark Lawrence breamore...@yahoo.co.uk wrote: On 16/07/2014 18:32, Deb Wyatt wrote: Can you all stop already with the non python US bashing? Please? Deb in WA, USA rr started it with a fairly impressive piece of trolling but as you've asked so politely I

Re: This Python 3 is killing Python thread is killing me.

On Wed, Jul 16, 2014 at 1:27 PM, Mark Lawrence breamore...@yahoo.co.uk wrote: The difference between our most illustrious resident unicode expert and rr is that the former has only said anything of use once, whereas the latter does know about tkinter/IDLE. rr doesn't show up that often, the

Re: networkx plot random graph Error

On Jul 15, 2014, at 3:11 AM, u2107 phani@gmail.com wrote: I am trying to read a file with 3 columns with col 1 and 2 as nodes/edges and column 3 as weight (value with decimal) I am trying to execute this code import networkx as nx G = nx.read_edgelist('file.txt',

Re: Matplotlib Colouring outline of histogram

On Fri, Jun 20, 2014 at 4:10 AM, Jamie Mitchell jamiemitchell1...@gmail.com wrote: Hi folks, Instead of colouring the entire bar of a histogram i.e. filling it, I would like to colour just the outline of the histogram. Does anyone know how to do this? Version - Python2.7 Look at the

Re: Matplotlib Colouring outline of histogram

On Fri, Jun 20, 2014 at 10:27 AM, Jamie Mitchell jamiemitchell1...@gmail.com wrote: That's great Jason thanks for the detailed response, I went with the easier option 1! I am also trying to put hatches on my histograms like so: plt.hist(dataset,bins=10,hatch=['*']) When it comes to

Re: Adding R squared value to scatter plot

​​ On Wed, May 21, 2014 at 7:59 AM, Jamie Mitchell jamiemitchell1...@gmail.com wrote: I have made a plot using the following code: python2.7 import netCDF4 import matplotlib.pyplot as plt import numpy as np

Re: [OFF-TOPIC] How do I find a mentor when no one I work with knows what they are doing?

On Tue, Apr 8, 2014 at 3:07 AM, James Brewer ja...@brwr.org wrote: I'm sure there will be a substantial amount of arrogance perceived from this question, but frankly I don't think that I have anything to learn from my co-workers, which saddens me because I really like to learn and I know that

Re: Switching between cmd.CMD instances

On Wed, Apr 2, 2014 at 1:03 AM, Josh English joshua.r.engl...@gmail.comwrote: I have a program with several cmd.Cmd instances. I am trying to figure out what the best way to organize them should be. I've got my BossCmd, SubmissionCmd, and StoryCmd objects. The BossCmd object can start

Re: Tkinter problem: TclError couldn't connect to display :0

On Sun, Dec 29, 2013 at 10:29 PM, Steven D'Aprano st...@pearwood.infowrote: On Mon, 30 Dec 2013 10:30:11 +1100, Chris Angelico wrote: On Mon, Dec 30, 2013 at 10:22 AM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: So you need to X-forward from the remote machine to the

Re: How to make Tkinter Listbox entry insensitive?

On Thu, Oct 10, 2013 at 2:29 PM, Skip Montanaro s...@pobox.com wrote: Removing inappropriate entries is not much of a hack. True, but then I have to go through the trouble of adding them back in should they become valid again. :-) It seems that this could be handled fairly

Re: Critic my module

You've gotten plenty of good advice from people discussing the coding and coding style itself, I'll provide some feedback from the vantage point of a perspective user. On Thu, Jul 25, 2013 at 9:24 AM, Devyn Collier Johnson devyncjohn...@gmail.com wrote: Aloha Python Users! I made a

Re: Strange behaviour with os.linesep

On Tue, Jul 23, 2013 at 7:42 AM, Vincent Vande Vyvre vincent.vandevy...@swing.be wrote: On Windows a script where de endline are the system line sep, the files are open with a double line in Eric4, Notepad++ or Gedit but they are correctly displayed in the MS Bloc-Notes. Example with this

Re: tkinter progress bar

On Tue, Jul 23, 2013 at 5:38 AM, hsiw...@walla.com wrote: Dear Christian, Thanks for the help. Can you please add a source example as I am new with Tkinter. http://docs.python.org/2/library/ttk.html#progressbar You can do something like this: #!/usr/bin/env python import Tkinter as tk

Re: Strange behaviour with os.linesep

On Tue, Jul 23, 2013 at 9:26 AM, Vincent Vande Vyvre vincent.vandevy...@swing.be wrote: Le 23/07/2013 15:10, Vincent Vande Vyvre a écrit : The '\n' are in the original file. I've tested these other versions: --**- def write(): strings = ['# -*- coding:

Re: Callable or not callable, that is the question!

On Thu, Jul 11, 2013 at 9:05 AM, Ulrich Eckhardt ulrich.eckha...@dominolaser.com wrote: Hello! I just stumbled over a case where Python (2.7 and 3.3 on MS Windows) fail to detect that an object is a function, using the callable() builtin function. Investigating, I found out that the object

Re: Important features for editors

On Thu, Jul 4, 2013 at 2:52 PM, Ferrous Cranus ni...@superhost.gr wrote: Στις 4/7/2013 9:40 μμ, ο/η Grant Edwards έγραψε: On 2013-07-04, ?? ni...@superhost.gr wrote: If you guys want to use it i can send you a patch for it. I know its illegal thing to say but it will help you use

Re: Why is the argparse module so inflexible?

On Thu, Jun 27, 2013 at 2:50 PM, Ethan Furman et...@stoneleaf.us wrote: If the OP is writing an interactive shell, shouldn't `cmd` be used instead of `argparse`? argparse is, after all, intended for argument parsing of command line scripts, not for interactive work. He _is_ using cmd.

Re: Why is the argparse module so inflexible?

On Thu, Jun 27, 2013 at 8:22 PM, Tim Chase python.l...@tim.thechases.comwrote: On 2013-06-28 09:02, Cameron Simpson wrote: On 27Jun2013 11:50, Ethan Furman et...@stoneleaf.us wrote: | If the OP is writing an interactive shell, shouldn't `cmd` be used | instead of `argparse`? argparse is,

on git gc --aggressive [was Re: Version Control Software]

On Sat, Jun 15, 2013 at 11:55 PM, rusi rustompm...@gmail.com wrote: On Jun 16, 4:14 am, Chris Angelico ros...@gmail.com wrote: On Sun, Jun 16, 2013 at 12:16 AM, Roy Smith r...@panix.com wrote: The advantage of DVCS is that everybody has a full copy of the repo. The disadvantage of the

Re: Version Control Software

On Sun, Jun 16, 2013 at 9:30 AM, Chris “Kwpolska” Warrick kwpol...@gmail.com wrote: On Sun, Jun 16, 2013 at 1:14 AM, Chris Angelico ros...@gmail.com wrote: Hmm. ~/cpython/.hg is 200MB+, but ~/pike/.git is only 86MB. Does Mercurial compress its content? A tar.gz of each comes down, but only

Re: Using Python to automatically boot my computer at a specific time and play a podcast

On Sun, Jun 16, 2013 at 3:06 PM, C. N. Desrosiers cndesrosi...@gmail.comwrote: Hi, I'm planning to buy a Macbook Air and I want to use it as a sort of alarm. I'd like to write a program that boots my computer at a specific time, loads iTunes, and starts playing a podcast. Is this sort of

Re: My son wants me to teach him Python

On Thu, Jun 13, 2013 at 11:33 PM, Rick Johnson rantingrickjohn...@gmail.com wrote: On Thursday, June 13, 2013 3:18:57 PM UTC-5, Joshua Landau wrote: [...] GUI is boring. I don't give a damn about that. If I had it my way, I'd never write any interfaces again (although designing them is

Re: My son wants me to teach him Python

On Fri, Jun 14, 2013 at 3:21 AM, Chris Angelico ros...@gmail.com wrote: On Fri, Jun 14, 2013 at 4:13 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: Here's another Pepsi Challenge for you: There is a certain directory on your system containing 50 text files, and 50

Re: Newbie: question regarding references and class relationships

On Mon, Jun 10, 2013 at 7:26 PM, Dave Angel da...@davea.name wrote: On 06/10/2013 06:54 PM, Chris Angelico wrote: On Tue, Jun 11, 2013 at 8:39 AM, Grant Edwards invalid@invalid.invalid wrote: On 2013-06-10, Terry Jan Reedy tjre...@udel.edu wrote: Another principle similar to 'Don't add

Re: Idiomatic Python for incrementing pairs

On Sat, Jun 8, 2013 at 2:47 AM, Peter Otten __pete...@web.de wrote: You can hide the complexity in a custom class: class T(tuple): ... def __add__(self, other): ... return T((a+b) for a, b in zip(self, other)) ... t = T((0, 0)) for pair in [(1, 10), (2, 20), (3, 30)]:

Re: Idiomatic Python for incrementing pairs

On Fri, Jun 7, 2013 at 10:32 PM, Tim Chase python.l...@tim.thechases.comwrote: Playing around, I've been trying to figure out the most pythonic way of incrementing multiple values based on the return of a function. Something like def calculate(params): a = b = 0 if

Re: python netcdf

On Wed, Jun 5, 2013 at 9:07 PM, Sudheer Joseph sjo.in...@gmail.com wrote: Dear Members, Is there a way to get the time:origin attribute from a netcdf file as string using the Python netcdf? Attributes of the NetCDF file and attributes of each of the variables can be

Re: Bools and explicitness [was Re: PyWart: The problem with print]

On Tue, Jun 4, 2013 at 11:44 AM, Rick Johnson rantingrickjohn...@gmail.comwrote: This implicit conversion seems like a good idea at first, and i was caught up in the hype myself for some time: Hey, i can save a few keystrokes, AWESOME!. However, i can tell you with certainty that this

Re: PyWart: The problem with print

On Mon, Jun 3, 2013 at 1:12 PM, Ian Kelly ian.g.ke...@gmail.com wrote: On Sun, Jun 2, 2013 at 6:16 PM, Jason Swails jason.swa...@gmail.com wrote: I'm actually with RR in terms of eliminating the overhead involved with 'dead' function calls, since there are instances when optimizing

Re: PyWart: The problem with print

On Mon, Jun 3, 2013 at 1:12 PM, Ian Kelly ian.g.ke...@gmail.com wrote: On Sun, Jun 2, 2013 at 6:16 PM, Jason Swails jason.swa...@gmail.com wrote: I'm actually with RR in terms of eliminating the overhead involved with 'dead' function calls, since there are instances when optimizing

Re: PyWart: The problem with print

ack, sorry for the double-post. -- http://mail.python.org/mailman/listinfo/python-list

Python 2-3 compatibility

Hello Everyone, I have a Python script that I wrote to support a project that I work on (that runs primarily on Unix OSes). Given its support role in this package, this script should not introduce any other dependencies. As a result, I wrote the script in Python 2, since every Linux currently

Re: PyWart: The problem with print

On Sun, Jun 2, 2013 at 1:20 PM, Chris Angelico ros...@gmail.com wrote: Hmm. Could be costly. Hey, you know, Python has something for testing that. timeit.timeit('debugprint(asdf)','def debugprint(*args):\n\tif not DEBUG: return\n\tprint(*args)\nDEBUG=False',number=100)

Re: PyWart: The problem with print

On Sun, Jun 2, 2013 at 11:10 PM, Dan Sommers d...@tombstonezero.net wrote: On Sun, 02 Jun 2013 20:16:21 -0400, Jason Swails wrote: ... If you don't believe me, you've never hit a bug that 'magically' disappears when you add a debugging print statement ;-). Ah, yes. The Heisenbug

Re: Preparing sqlite, dl and tkinter for Python installation (no admin rights)

On Thu, Apr 18, 2013 at 10:37 AM, James Jong ribonucle...@gmail.com wrote: Thanks so much Chris. This is part of a super computer and I am afraid I don't have access to a machine with sudo permissions and similar architecture OS. Is there any way to active higher level of verbosity during

Re: In defence of 80-char lines

On Wed, Apr 3, 2013 at 9:36 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: Although PEP 8 is only compulsory for the Python standard library, many users like to stick to PEP 8 for external projects. But even the standard library breaks this rule on occasion. e.g.,

Re: In defence of 80-char lines

On Thu, Apr 4, 2013 at 7:09 AM, Tim Chase python.l...@tim.thechases.comwrote: On 2013-04-04 08:43, Peter Otten wrote: llanitedave wrote: self.mainLabel.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.BOLD, faceName = FreeSans)) I think I would prefer labelfont = wx.Font(

Re: In defence of 80-char lines

On Thu, Apr 4, 2013 at 8:39 AM, Roy Smith r...@panix.com wrote: In article mailman.96.1365077619.3114.python-l...@python.org, Jason Swails jason.swa...@gmail.com wrote: The only time I regularly break my rule is for regular expressions (at some point I may embrace re.X to allow me

Re: Python 3.3 Tkinter Fullscreen - Taskbar not Hiding

I've added some comments about the code in question as well... On Wed, Apr 3, 2013 at 11:45 PM, teslafreque...@aol.com wrote: Hi, I am working with Tkinter, and I have set up some simple code to run: import tkinter import re from tkinter import * If you import everything from tkinter into

Re: Python 3.3 Tkinter Fullscreen - Taskbar not Hiding

On Thu, Apr 4, 2013 at 1:30 PM, Rotwang sg...@hotmail.co.uk wrote: On 04/04/2013 14:49, Jason Swails wrote: I've added some comments about the code in question as well... On Wed, Apr 3, 2013 at 11:45 PM, teslafreque...@aol.com mailto:teslafreque...@aol.com** wrote: Hi, I am working

Re: In defence of 80-char lines

On Thu, Apr 4, 2013 at 4:28 PM, jmfauth wxjmfa...@gmail.com wrote: On 4 avr, 03:36, Steven D'Aprano steve +comp.lang.pyt...@pearwood.info wrote: Although PEP 8 is only compulsory for the Python standard library, many users like to stick to PEP 8 for external projects.

Re: Tkinter

On Tue, Apr 2, 2013 at 10:04 PM, Renato Barbosa Pim Pereira renato.barbosa.pim.pere...@gmail.com wrote: Thanks for the advices, I need now one scrollbar to roll under screen, I created the scrollbar but cant roll, please help me on this. http://pastebin.com/L6XWY6cm You need to bind your

Re: Installation on Mac OSX 10.6.8 doesn't create the folder: /System/Library/Frameworks/Python.framework/Versions/2.7/

On Tue, Apr 2, 2013 at 6:22 AM, kramer65 kram...@gmail.com wrote: Hello people, I installed python 2.7 on Mac OSX 10.6.8 with no problems and it is working fine. When I try to install Kivy however (www.kivy.org), I get an error saying: How did you install Python 2.7? How did you install

Re: Tkinter

On Mon, Apr 1, 2013 at 5:12 PM, Renato Barbosa Pim Pereira renato.barbosa.pim.pere...@gmail.com wrote: I need to create a button and a text box follows the text box to enter a number, and this number is expected to create the same screen text boxes, and these text boxes need to be referenced,

Re: Tkinter

Please keep response replies to the Python list (e.g., use 'reply all' or just send the email to python-list). Also, you should tell people what Python version you are using. I assume you are using Python 2 since Tkinter was renamed to tkinter in Python 3. Finally, do not top-post. Type your

Re: Why does 1**2**3**4**5 raise a MemoryError?

On Sun, Mar 31, 2013 at 9:15 AM, Roy Smith r...@panix.com wrote: $ prtstat 29937 Process: mongodState: S (sleeping) [...] Memory Vsize: 1998285 MB RSS: 5428 MB RSS Limit: 18446744073709 MB If I counted the digits right, that 1.9 TB. I love the RSS

Re: Export data from python to a txt file

On Fri, Mar 29, 2013 at 1:33 PM, Ana Dionísio anadionisio...@gmail.comwrote: Hello!!! I have this lists a=[1,3,5,6,10], b=[a,t,q,r,s] and I need to export it to a txt file and I can't use csv. It would help if you showed exactly what you had in your program or in the Python interpreter.

Re: Decorator help

On Wed, Mar 27, 2013 at 3:49 PM, Joseph L. Casale jcas...@activenetwerx.com wrote: I have a class which sets up some class vars, then several methods that are passed in data and do work referencing the class vars. I want to decorate these methods, the decorator needs access to the class

Re: Decorator help

On Wed, Mar 27, 2013 at 7:29 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: The one doesn't follow from the other. Writing decorators as classes is fairly unusual. Normally, they will be regular functions. If your decorator needs to store so much state that it needs to be a

Re: Python GUI questions

On Tue, Mar 19, 2013 at 9:25 PM, maiden129 sengokubasarafe...@gmail.comwrote: On Tuesday, March 19, 2013 8:57:42 PM UTC-4, Rick Johnson wrote: On Tuesday, March 19, 2013 2:01:24 PM UTC-5, maiden129 wrote: Hello, I'm using python 3.2.3 and I'm making a program that show the

Re: PyWart: NameError trackbacks are superfluous

On Sat, Mar 16, 2013 at 2:27 PM, Rick Johnson rantingrickjohn...@gmail.comwrote: [snip junk] We don't need multiple layers of traces for NameErrors. Python does not have *real* global variables; and thank Guido for that! All we need to know is which module the error occurred in AND which

Re: Is it correct this way to inherit from a list?

On Sun, Mar 3, 2013 at 9:21 AM, Colin J. Williams c...@ncf.ca wrote: On 02/03/2013 9:30 PM, gialloporpora wrote: Risposta al messaggio di Rick Johnson : What are you trying to achieve exactly? I would like to implement a class (vector) to works with vectors, for example using scalar

Re: Speeding up Python's exit

On Fri, Mar 1, 2013 at 5:51 PM, Antoine Pitrou solip...@pitrou.net wrote: Dave Angel davea at davea.name writes: Note he didn't say the python buffers would be flushed. It's the OS buffers that are flushed. Now please read my message again. The OS buffers are *not* flushed according

Re: Do you feel bad because of the Python docs?

Just to throw in my 2c -- in the same way that 'a picture is worth a thousand words', an interactive interpreter is worth volumes of documentation (especially one with such a nice help()/__doc__ functionality). It's worth pointing out that 'interpreter' appears in the original rant once

Re: request of information

On Sun, Feb 17, 2013 at 1:47 PM, leonardo selmi l.se...@icloud.com wrote: gentlemen: i am reading a book about python and now i am blocked, i can't store functions in modules: i have a mac and am using version 2.7.3, i have created a function and want to save it as a file using

Re: PyWart: Namespace asinitiy and the folly of the global statement

On Mon, Feb 11, 2013 at 1:27 AM, Chris Angelico ros...@gmail.com wrote: On Mon, Feb 11, 2013 at 1:42 PM, alex23 wuwe...@gmail.com wrote: On Feb 9, 2:25 pm, Michael Torrie torr...@gmail.com wrote: Rick seems to know his stuff about Tk programming, but his knowledge of programming language

Re: confusion with decorators

On Thu, Jan 31, 2013 at 12:46 AM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: On Wed, 30 Jan 2013 19:34:03 -0500, Jason Swails wrote: Hello, I was having some trouble understanding decorators and inheritance and all that. This is what I was trying to do: # untested

Re: confusion with decorators

On Thu, Jan 31, 2013 at 10:28 AM, Chris Angelico ros...@gmail.com wrote: Well, that surely isn't going to work, because it always decorates the same function, the global fcn. I don't think this is right. fcn is a passed function (at least if it acts as a decorator) that is declared

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