On 2/18/2015 2:43 PM, Ethan Furman wrote:
Whether a contained object exists before it is accessed is irrelevant, is an
implementation detail, and is a level of
optimization.
Is in not irrelevant in that virtual collections can be infinite.
--
Terry Jan Reedy
--
On 2/17/2015 4:21 PM, candide wrote:
Official Python documentation very frequently invokes a mysterious *container*
data structure. The PLR manual explains :
I use 'collection' rather than 'container'.
--
Some objects contain references to other objects; these are
On 2/12/2015 11:07 PM, Rustom Mody wrote:
On Thursday, February 12, 2015 at 11:59:55 PM UTC+5:30, John Ladasky wrote:
On Thursday, February 12, 2015 at 3:08:10 AM UTC-8, Fabien wrote:
... what a coincidence then that a huge majority of scientists
(including me) dont care AT ALL about unicode.
On 2/12/2015 7:26 AM, ast wrote:
Hello
Here is how text appears in IDLE window
http://www.cjoint.com/data/0BmnEIcxVAx.htm
Do you get anything similar when running the console interpreter?
Yesterday evening I had not this trouble. It appears
this morning. I restarted my computer with no
On 2/11/2015 8:04 AM, Albert van der Horst wrote:
It is not until we assign the object to a name (which becomes thereby a
function)
that the __name__ thingy comes into play, like so.
But __name__ would not come into play.
f = x-x**2
This would mean to create an anonymous function object
On 2/11/2015 1:00 PM, Mark Lawrence wrote:
On 11/02/2015 13:11, Rustom Mody wrote:
Context:
I am using idle for taking python classes.
Teaching or taking?
Finish the class and run out usually in a hurry and forget to save the
idle interaction window.
Do you mean the shell window?
Would
On 2/11/2015 5:17 PM, Mark Lawrence wrote:
There are loads of possible loss of data warnings such as.
15..\Modules\_tkinter.c(640): warning C4267: '+=' : conversion from
'size_t' to 'int', possible loss of data
15..\Modules\_tkinter.c(892): warning C4244: 'function' : conversion
from
On 2/11/2015 9:48 PM, Rustom Mody wrote:
On Thursday, February 12, 2015 at 7:57:48 AM UTC+5:30, Terry Reedy wrote:
If one saves the shell with 'save as', the filename is added to the
title bar. If one does something more, the name in bracketed with *s to
indicate the the memory buffer has
On 2/9/2015 6:52 PM, james8boo...@hotmail.com wrote:
import random
RandomNum = random.randint(0,7)
restraunt = raw_input(What's your favourite takeaway?Pizza, Chinease or
Indian?)
if restraunt == (Pizza):
fav = (1)
As a style note, putting parentheses around strings is worse than
On 2/8/2015 5:06 PM, Mark Lawrence wrote:
On 08/02/2015 22:00, Larry Hastings wrote:
On behalf of the Python development community and the Python 3.4 release
team, I'm happy to announce the availability of Python 3.4.3rc1.
Python 3.4.3rc1 has many bugfixes and other small improvements over
class EventHubClient(object): ...
def sendMessage(self,body,partition):
...
^
IndentationError: expected an indented block
***
and 'def' is not indented as it must be. This must be covered in the
tutorial.
--
Terry
On 2/2/2015 6:26 PM, Luke Lloyd wrote:
I am in school and there is a problem with my code:
When I try to run my code in the python code in the python shell it
waits about 10 seconds then shows an error that says “IDLE’s subprocess
didn’t make connection. Either IDLE can’t start a subprocess or
On 1/30/2015 10:46 AM, Ian Kelly wrote:
I just tried to use the password recovery tool for the Python tracker.
I entered my personal email. It sent me the confirmation email with
the password reset link, which I followed. It then reset my password
and sent an email to a different address, an old
On 1/31/2015 4:13 AM, Steven D'Aprano wrote:
Jacob Kruger wrote:
Using python 3.4 32 bit on windows 7 64 bit machine, and when, for
example, type in something like the following in interpreter window:
help(str)
It will populate the screen with one full screen of information, with a
prompt of
On 1/27/2015 12:17 AM, Rehab Habeeb wrote:
Hi there python staff
does python support arabic language for texts ? and what to do if it
support it?
i wrote hello in Arabic using codeskulptor and the powershell just for
testing and the same error appeared( a sytanx error in unicode)!!
I do not
On 1/25/2015 7:00 AM, Steven D'Aprano wrote:
What happens inside the dictionary? Dictionaries are hash tables, so they
are basically a big array of cells, and each cell is a pair of pointers,
one for the key and one for the value:
[dictionary header]
[blank]
[blank]
[ptr to
On 1/24/2015 5:16 AM, Mario Figueiredo wrote:
Consider the following code at your REPL of choice
class Sub:
pass
foo = Sub()
Sub.__bases__
foo.__bases__
The last statement originates the following error:
This is an anomalous situation.
On 1/24/2015 4:14 PM, Mario Figueiredo wrote:
In article 54c39366$0$13006$c3e8da3$54964...@news.astraweb.com,
steve+comp.lang.pyt...@pearwood.info says...
AttributeError: 'Sub' instance has no attribute '__bases__',
AttributeError: 'foo' object has no attribute '__bases__'
On 1/24/2015 6:53 PM, Christopher J. Pisz wrote:
I am trying to help a buddy out. I am a C++ on Windows guy. This buddy
of mine is learning Python at work on a Mac. I figured I could
contribute with non language specific questions and such.
When learning any new language, I said, the first step
On 1/24/2015 7:16 PM, Salem Alqahtani wrote:
Hi Guys,
I just joined the group and I hope that I can help and be active.
I have a question about python. I wrote a code on python 2.7 and I want to
choose from the list of names that I provide n!. I execute the code but the
result or output is
On 1/24/2015 5:57 PM, Brian Gladman wrote:
I would appreciate advice on how to set up delgation in Python.
I am continuously implementing a function to test whether a Python
Fraction is an integer
Since Fractions are reduced to lowest terms,
from fractions import Fraction as F
F(4, 2)
On 1/24/2015 4:51 PM, Marco Buttu wrote:
On 24/01/2015 20:24, Terry Reedy wrote:
On 1/24/2015 5:16 AM, Mario Figueiredo wrote:
Consider the following code at your REPL of choice
class Sub:
pass
foo = Sub()
Sub.__bases__
foo.__bases__
The last
On 1/23/2015 5:40 PM, sohcahto...@gmail.com wrote:
On Monday, January 19, 2015 at 4:16:13 PM UTC-8, Luke Tomaneng wrote:
Has anyone noticed these? There have been about three of them recently and they
don't seem to have anything to do with Python at all. Does anyone know if there
is a good
On 1/23/2015 6:46 AM, Andrew Robinson wrote:
-- because people seem to have a very wrong idea about bool's nature as
a dualton being somehow justified solely by the fact that there are only
two values in Boolean logic; For, singletons style programming is not
justified by the number of values
On 1/22/2015 8:15 PM, Rick Johnson wrote:
Okay, i have found a solution to the type hinting problem
that will appease both sides. On one side we have those who
are proposing type hinting annotations within function sigs,
and on the other side, we have those who oppose the
implementation of type
On 1/22/2015 7:40 PM, Sturla Molden wrote:
On 22/01/15 21:03, Mario Figueiredo wrote:
That is fine. But then the problem isn't type hinting, is it? Neither I
think you are suggesting we don't introduce language because there are
bad project managers out there.
The problem is then bad project
On 1/22/2015 3:44 PM, Rick Johnson wrote:
On Thursday, January 22, 2015 at 12:28:47 PM UTC-6, Mark Lawrence wrote:
Evidence in completely the opposite direction if I'm
reading this correctly [snip link]
The main use case of type hinting is static analysis
using an external tool without
On 1/22/2015 8:06 PM, Rick Johnson wrote:
On Thursday, January 22, 2015 at 4:25:37 PM UTC-6, Mario Figueiredo wrote:
1. Annotations where created exactly for this purpose. So
there's some preassure to put them to work on what they
were always meant to be used for.
Yes, i whole heartily
On 1/22/2015 10:59 PM, Chris Angelico wrote:
On Fri, Jan 23, 2015 at 2:22 PM, Terry Reedy tjre...@udel.edu wrote:
This idea is so brilliant that it is already an option in mypy and is part
of the new type-hint proposal. The separate type-hint files are called
'stub files'.
It's worth
On 1/22/2015 3:24 AM, Rick Johnson wrote:
Yes, YES, *YES* That would be my first choice, or
docstrings as a secondary. But to introduce new syntax
into the method signatures is SUICIDE! What the hell is
this man thinking?
You are years late for complaining about new signature syntax. The
On 1/21/2015 7:16 PM, Mario Figueiredo wrote:
In article 873873ae91@jester.gateway.sonic.net,
no.email@nospam.invalid says...
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes:
In 2009, Robert Martin gave a talk at RailsConf titled What Killed
Smalltalk Could Kill Ruby...
On 1/20/2015 4:47 PM, Mario wrote:
In article d34dbfbe-fe82-47dc-8bc3-c8773e2b7...@googlegroups.com,
rustompm...@gmail.com says...
Yeah python has trees alright.
Heres' some simple tree-code
Didn't you just demonstrate that Python has no trees and instead you
have to implement them yourself
On 1/19/2015 5:06 PM, Zachary Gilmartin wrote:
Why aren't there trees in the python standard library?
Sequences nested withing sequences can be regarded as trees, and Python
has these. I regard Lisp as a tree processing languages, as it must be
to manipulate, for example, code with nested
On 1/13/2015 1:13 AM, Chris Angelico wrote:
On Tue, Jan 13, 2015 at 4:32 PM, Steven D'Aprano st...@pearwood.info wrote:
Crashing the interpreter from
pure Python code is *absolutely not allowed*, so anything which would
allow that is forbidden.
Except when you willingly shoot yourself in the
On 1/9/2015 7:04 AM, Skip Montanaro wrote:
Posts on this newsgroup/mailing list are archived on the web, but the URLs
seem to change, which leaves dead links if you search for things.
Steven,
It's a known issue, but one which appears to be somewhat unavoidable,
at least in Mailman 2.x. The
On 1/9/2015 8:14 AM, Gisle Vanem wrote:
I'm having some trouble understanding why my Python 2.7.9
has the '%PYTHONHOME%\lib\site-packages' listed multiple
times.
I cooked up this .bat file to demonstrate the issue:
@echo off
setlocal
set PYTHONPATH=
python -c import sys;
On 1/7/2015 9:00 PM, Ganesh Pal wrote:
Hi friends,
I'm trying to use threads to achieve the below work flow
1. Start a process , while its running grep for a string 1
2. Apply the string 1 to the command in step 1 and exit step 2
3. Monitor the stdout of step1 and print success if the is
On 1/6/2015 9:01 PM, Andrew Robinson wrote:
[snip]
There are very few (about 4) builtin classes that cannot be subclassed.
bool is one of those few, float is not. Go ahead and subclass it.
class F(float): pass
F
class '__main__.F'
F(2.3) + F(3.3)
5.6
--
Terry Jan Reedy
--
On 1/5/2015 6:33 AM, flebber wrote:
You could do what mathematicians do when they deal with alternating
signs: they raise -1 to the power of the index to get an appropriate
multiplier.
[ n * (-1) ** n for n in range(10) ]
[0, -1, 2, -3, 4, -5, 6, -7, 8, -9]
Mathematicians operating
On 1/4/2015 3:23 AM, Christian Gollwitzer wrote:
Am 03.01.15 um 22:57 schrieb Terry Reedy:
The current doc is wrong in any case. I opened
http://bugs.python.org/issue23156
Tix is a compiled extension, so this tix8.4.3.dll is needed as well as a
couple of .tcl file including pkgIndex.tcl
On 1/4/2015 6:34 AM, flebber wrote:
In repsonse to this question: Write a program that prints the first 100 members
of the sequence 2, -3, 4, -5, 6, -7, 8.
This is my solution it works but ugly.
series = range(2,100)
# answer = [(x,(y* -1)) for x, y in series[::2]]
# print(answer)
answer = []
On 1/3/2015 1:30 PM, aba...@gmail.com wrote:
Hi,
I have had issues running Tix on python 2.7.6 and 3.4.2:
More details on the issue here.
http://stackoverflow.com/questions/27751923/tix-widgets-installation-issue
Has anyone had similar issues with Tix?
The current doc is wrong in any case.
On 1/3/2015 6:19 PM, austin aigbe wrote:
I am currently implementing the LTE physical layer in Python (ver 2.7.7).
For the qpsk, 16qam and 64qam modulation I would like to know which is more
efficient to use, between an integer comparison and a list comparison:
Integer comparison: bit_pair as
On 1/1/2015 7:36 PM, lucas mvm wrote:
a different introduction to the same code posted 6 hours earlier.
Read and study both of the answers already given about an hour after the
first post. Ignoring them and reposting, with 'NEED HELP!' no less, is
rude. I strongly suggest you do the exercise
On 12/30/2014 7:21 PM, MRAB wrote:
On 2014-12-30 22:45, Toni Bajer wrote:
When I try to run the Python 3.4.2 64-bit Installer on Windows 7 it gets
about 90% through and then a new box pops up with the following
message...
There is a problem with this Windows Installer package. A program
On 12/28/2014 12:27 PM, Seymore4Head wrote:
I need to search through a directory of text files for a string.
Here is a short program I made in the past to search through a single
text file for a line of text.
How can I modify the code to search through a directory of files that
have different
On 12/23/2014 10:24 AM, pypythotho wrote:
In Command Prompt, 'python -m idlelib' helped me to dicover the
problem source. An explicit message told that an indentation was
insconsistant in the file ntpath.py I modified previously with
notepad++. I replaced a tab by 4 spaces and IDLE run again
On 12/23/2014 12:27 PM, Mark Lawrence wrote:
I chanced upon this
https://mail.python.org/pipermail/distutils-sig/2014-December/025450.html via
twitter and thought it would be of interest here.
I'll assume that by the time I hit 'Send' it'll have arrived on the
announcements mailing list :)
On 12/23/2014 1:55 PM, Seb wrote:
def n_grams(a, n):
... z = (islice(a, i, None) for i in range(n))
... return zip(*z)
I'm impressed at how succinctly this islice helps to build a list of
tuples with indices for all the required windows. However, I'm not
quite following what goes
On 12/23/2014 4:25 PM, Ben Finney wrote:
Ian Kelly ian.g.ke...@gmail.com writes:
On Tue, Dec 23, 2014 at 11:55 AM, Seb splu...@gmail.com wrote:
Particulary, what do the parentheses do there?
The parentheses enclose a generator expression, which is similar to a
list comprehension [1] but
On 12/21/2014 2:28 AM, shawool wrote:
where am i going wrong ?
You clear sys.modules, which apparently CPython uses in its normal function.
Python 3.2.5 (default, Oct 2 2013, 22:58:11)
d = {}
import sys
d = sys.modules
type(d)
class 'dict'
dir(d)
['__class__', '__contains__',
On 12/22/2014 12:10 PM, Chris Angelico wrote:
On Tue, Dec 23, 2014 at 2:18 AM, Steven D'Aprano
steve+comp.lang.pyt...@pearwood.info wrote:
Chris Angelico wrote:
On Mon, Dec 22, 2014 at 8:21 PM, Steven D'Aprano
steve+comp.lang.pyt...@pearwood.info wrote:
If the called function has
On 12/21/2014 12:31 AM, Chris Angelico wrote:
On Sun, Dec 21, 2014 at 4:14 PM, CM cmpyt...@gmail.com wrote:
I ran it in IDLE with Python 2.7.8 and got:
Traceback (most recent call last):
File C:/Python27/helloworld.py, line 39, in module
lambda _, __, ___, , _, __, ___,
On 12/19/2014 6:40 AM, Cem Karan wrote:
I'm bringing this discussion over from the python-ideas mailing list
to see what people think. I accidentally discovered that the
following works, at least in Python 3.4.2:
class foo(object):
... pass ...
setattr(foo, '3', 4) dir(foo)
['3',
On 12/18/2014 12:27 PM, Marcus Lütolf wrote:
Learn to use dir to fine valid names.
1)I am trying to do this:
dir(_builtins_)
I am getting this:
Traceback (most recent call last):
File pyshell#0, line 1, in module
dir(_builtins_)
NameError: name '_builtins_' is not defined
dir()
On 12/18/2014 8:55 PM, Juan Christian wrote:
On Thu Dec 18 2014 at 11:35:11 PM Chris Angelico ros...@gmail.com
mailto:ros...@gmail.com wrote:
Why does this matter to you? Why am I getting the feeling that I
should not be helping you?
Because that's what my project is all about, I need to fake
On 12/14/2014 6:15 PM, Thomas 'PointedEars' Lahn wrote:
Ivan Evstegneev wrote:
I have stuck a bit with this example(took this one from the book).
Here are a description steps of what I've done till now:
Step 1 - creating an empty namespace:
class rec: pass
IMHO that is not actually
On 12/10/2014 5:04 PM, Bruno Cauet wrote:
I hesitated a while before deciding not to include it! Apart from python
core development what would be the reasons to work mostly on this version ?
where 'This version' == 3.5. A possible reason: one is developing an
app expected to be released fall
On 12/11/2014 9:21 PM, Nelson Crosby wrote:
I was thinking a bit about the following pattern:
value = get_some_value()
while value in undesired_values:
value = get_some_value()
This is do_while or do_until. In Python, write it as do_until in this form.
while True:
value =
On 12/10/2014 11:46 AM, Ian Kelly wrote:
I don't particularly have a problem with functions having attributes,
e.g. I think itertools.chain.from_iterable is just peachy. There is a
downside though, which is that making those functions attributes of
another function rather than of the module
On 12/10/2014 3:32 PM, Ian Kelly wrote:
So Idle gets it right. At least for static methods of classes, which
isn't very surprising. Does it complete a function attribute of a
function?
def f(): pass
f.a='attr'
f. box with 'a' as possible completion.
Having used Komodo IDE for a number
On 12/9/2014 12:03 AM, Terry Reedy wrote:
Roy Smith wrote:
Chris Angelico wrote:
def myzip(*args):
iters = map(iter, args)
while iters:
res = [next(i) for i in iters]
yield tuple(res)
Ugh. When I see while foo, my brain says, OK, you're about to see a
loop
On 12/10/2014 1:53 AM, Chris Angelico wrote:
On Wed, Dec 10, 2014 at 5:44 PM, Steven D'Aprano st...@pearwood.info wrote:
It would be nice if product iterators behaved like xrange() objects and
could perform in tests without exhausting the iterator, but they don't.
That's sad.
It'd be very
def f(a=default +arg value): return a
f.__defaults__
('default arg value',)
Before any calls, the expression has be evaluated. When f() is called
with no arg, the local name 'a' is associated with
'default arg value'. Then code execution begins. Use dir(f), for
instance, to invesigate
On 12/8/2014 8:53 PM, Chris Angelico wrote:
On Tue, Dec 9, 2014 at 12:44 PM, Christoph Becker cmbecke...@gmx.de wrote:
Ben Finney wrote:
It's best to remember that ‘lambda’ is syntactic sugar for creating a
function; the things it creates are not special in any way, they are
normal functions,
On 12/8/2014 9:50 PM, Steven D'Aprano wrote:
Roy Smith wrote:
Chris Angelico wrote:
def myzip(*args):
iters = map(iter, args)
while iters:
res = [next(i) for i in iters]
yield tuple(res)
Ugh. When I see while foo, my brain says, OK, you're about to see a
loop
On 12/5/2014 3:51 PM, John J Posner wrote:
The defaultdict documentation is confusing on this point. A *long* time
ago, I filed Bug 9536 to improve the doc, but the fix hasn't bubbled to
the surface yet.
Untrue. Your patch 'bubbled to the surface' and got provisionally
rejected in 5 hours
On 12/7/2014 10:28 AM, Ivan Evstegneev wrote:
Hi Shiyao,
Now I see, that it was kind of dumb question...
x = ([1, 2], [3, 4], [5, 6])
L = []
[L.extend(i) for i in x]
[None, None, None]
Using a list comprehension for the expression side-effect, when you do
not actually want the list
On 12/7/2014 7:12 PM, Roy Smith wrote:
Chris Angelico wrote:
I'm actually glad PEP 479 will break this kind of code. Gives a good
excuse for rewriting it to be more readable.
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote:
What kind of code is that? Short, simple, Pythonic and
On 12/7/2014 11:44 PM, Ben Finney wrote:
Much more relevant is the ability to have two or even three code windows
side-by-side, for comparison during a merge operation. For this purpose,
a 75–80 column limit is a great help.
Or Idle Shell | Idle editor1 | Idle editor2
Editor 1 has file being
On 12/5/2014 2:54 PM, Mark Lawrence wrote:
For those who haven't heard thought this might be of interest
https://github.com/fijal/jitpy
So the old cpython module psyco which became the pypy jit is back as
jitpy. Nice.
--
Terry Jan Reedy
--
On 12/4/2014 5:35 AM, Albert van der Horst wrote:
I agree that it is a useful function and that it is doing
the right thing. What is wrong is the name.
I refer to the fact that it is not returning the maximum.
It returns the iterator value that leads to the maximum.
A function that doesn't
On 12/4/2014 11:46 AM, Aseem Bansal wrote:
Yeah, the problem seems to be with registry as every solution seems
to be fiddling with registry.
One can edit the registry directly with regedit. If you try it, follow
the instruction to first make a backup. Look for a regedit tutorial on
the
On 12/3/2014 6:02 AM, Chris Angelico wrote:
When importing a module from a subpackage, it's sometimes convenient
to refer to it throughout the code with a one-part name rather than
two. I'm going to use 'os.path' for the examples, but my actual
use-case is a custom package where the package name
On 12/3/2014 10:16 PM, Aseem Bansal wrote:
I am using 32-bit Python on a 64-bit Windows.
Edit with IDLE is missing from the context menu. I am working on
Windows 7. I have searched on google a lot and have tried everything
said in superuser, stackoverflow etc. I have even tried re-installing
On 11/29/2014 2:50 AM, Peter Otten wrote:
Terry Reedy wrote:
On 11/28/2014 10:52 AM, Peter Otten wrote:
ast wrote:
I have been using tkinter for few weeks now and I didn't found
how to make some tabs on a window.
see this picture for a window with tabs
http://www.computerhope.com/jargon/t
On 11/28/2014 10:52 AM, Peter Otten wrote:
ast wrote:
I have been using tkinter for few weeks now and I didn't found
how to make some tabs on a window.
see this picture for a window with tabs
http://www.computerhope.com/jargon/t/tabs.gif
Isn't it feasible with tkinter ?
See
On 11/26/2014 10:32 AM, random...@fastmail.us wrote:
It seems like if it is a bug to reject long where int is accepted,
I do not believe that is universally true is 2.7. But even if it is...
Short ints were, value-wise, a subset of longs. Thus, for example,
binary operations could always
On 11/21/2014 2:30 PM, Zachary Ware wrote:
On Fri, Nov 21, 2014 at 12:37 PM, Ian Kelly ian.g.ke...@gmail.com wrote:
Here's a nice crash. I thought this might similarly produce a
recursion depth error, but no, it's a seg fault!
$ cat test.py
import itertools
l = []
it =
On 11/20/2014 12:09 AM, Steven D'Aprano wrote:
No idea. But you can marshal StopIteration itself, but not StopIteration
instances:
py marshal.dumps(StopIteration)
'S'
py marshal.dumps(StopIteration())
Traceback (most recent call last):
File stdin, line 1, in module
ValueError:
On 11/20/2014 4:04 AM, Christian Gollwitzer wrote:
Tcl nor Tk support Unicode outside the BMP. Full Unicode support is a
big todo item on the wishlist for Tcl 9, for Tk nobody really knows. We
are lacking manpower and people with specialized knowledge.
Tcl/Tk currently use UCS-2, which only
On 11/20/2014 11:23 PM, Chris Angelico wrote:
On Fri, Nov 21, 2014 at 2:40 PM, Terry Reedy tjre...@udel.edu wrote:
On 11/20/2014 12:09 AM, Steven D'Aprano wrote:
No idea. But you can marshal StopIteration itself, but not StopIteration
instances:
py marshal.dumps(StopIteration)
'S'
py
On 11/19/2014 3:46 AM, ast wrote:
Hello
mainloop() is a window method which starts the event manager which
tracks for events (mouse, keyboard ...) to be send to the window.
But if I forget the root.mainloop() in my program, it works well anyway,
I cant see any failure. Why ?
Second question,
On 11/17/2014 8:32 AM, ast wrote:
Hello,
import tkinter
root = tkinter.Tk()
Let's see all attributes of root:
root.__dict__
{'master': None, 'children': {}, '_tclCommands': ['tkerror', 'exit',
'13825848destroy'], 'tk': tkapp object at 0x02949C28, '_tkloaded': 1}
Now we change the
On 11/16/2014 2:57 AM, Garrett Berg wrote:
(how often have you iterated over a string?)
Often enough, but perhaps more often have written functions for which a
string is as valid an input as many other iterables.
def cross(iterable, reiterable):
for a in iterable:
for b in
On 11/16/2014 3:39 PM, ryguy7272 wrote:
These libraries drive me totally nuts. Sorry, just had to get it out there.
Anyway, I open the cmd window, and typed this:
'easy_install python graphics'.
In what directory?
So, it starts up and runs/downloads the appropriate library from the web.
I
On 11/16/2014 8:01 AM, Pavel Volkov wrote:
I checked my modules with pylint and saw the following warning:
W: 25,29: Used builtin function 'map' (bad-builtin)
Why is the use of map() discouraged?
It' such a useful thing.
I consider that to be a bug in pylint. It misstates a careless 'bad'
On 11/16/2014 2:37 PM, Abdul Abdul wrote:
Hello,
I'm trying to open an image using the `Python Imaging Library` as follows:
from PIL import Image
img = Image.open('xyz.jpg')
But, got the following error:
File C:/Users/abc/PycharmProjects/untitled/open_image.py, line 2, in
module
from
On 11/15/2014 7:28 AM, Steven D'Aprano wrote:
Terry Reedy wrote:
On 11/13/2014 6:11 PM, Rick Johnson wrote:
# The parse functions have no idea what to do with
# Unicode, so replace all Unicode characters with x.
# This is safe so long as the only characters germane
On 11/15/2014 8:24 AM, Marko Rauhamaa wrote:
I'd take top-posting if I were enlightened about how decorators could be
valuable.
Here is part of the original rationale.
@deco(arg)
def f: suite
is (for this discussion) equivalent to
def f: suite
f = deco(arg)(f)
The latter requires writing
On 11/14/2014 10:11 AM, ast wrote:
Hello
In module wave there is a sub module struct.
struct is not a documented part of the wave module.
You can call function pack() with:
import wave
val = wave.struct.pack(...)
wave imports several other stdlib modules. All are accessible the same
On 11/14/2014 5:17 PM, Richard Riehle wrote:
In C, C++, Ada, and functional languages, I can create an array of
functions, albeit with the nastiness of pointers in the C family.
For example, an array of functions where each function is an active
button, or an array of functions that behave like
On 11/13/2014 3:45 PM, Rich Cook wrote:
Hi, I'm trying to toss together an image browser in tkinter, and it is so slow
it is unworkable. Here is my code. Can someone point out why it's so slw?
:-) Thanks
root = Tkinter.Tk()
root.geometry(1000x280+300+300)
label = Tkinter.Button(root,
On 11/13/2014 6:11 PM, Rick Johnson wrote:
# The parse functions have no idea what to do with
# Unicode, so replace all Unicode characters with x.
# This is safe so long as the only characters germane
# to parsing the structure of Python are 7-bit ASCII.
# It's
On 11/13/2014 7:51 PM, satishmlm...@gmail.com wrote:
in 4 different threads
How to get file descriptors of sys.stdin, sys.stdout and sys.stderr?
fileno() in not supported. Is it only in 3.1? What is the workaround?
io.UnsupportedOperation: fileno
How to give a file descriptor number to this
On 11/11/2014 5:52 PM, Ben Finney wrote:
Terry Reedy tjre...@udel.edu writes:
We love 'assert' so much that we have 20-30 'assertXYZ' variations in
unittest.
A function will not be disabled by a run-time option to the Python
interpreter.
The statement 'assert expression' is almost
On 11/8/2014 3:31 PM, Akira Li wrote:
Terry Reedy tjre...@udel.edu writes:
On my Win7 machine, your complicated code is much worse as it causes
the window to jump about every half second
After cutting and pasting again, I do not see the jumps. I do not have
the code I ran before to compare
On 11/12/2014 4:02 PM, John Ladasky wrote:
I have taught Python to several students over the past few years. As
I have worked with my students, I find myself bothered by the
programming idiom that we use to determine whether a module is being
executed or merely imported:
if __name__ ==
On 11/12/2014 6:26 PM, Chris Angelico wrote:
On Thu, Nov 13, 2014 at 10:19 AM, Terry Reedy tjre...@udel.edu wrote:
Functions have an implicit 'return None' at the end (which, in CPython,
become an explicit pair of bytecodes, even when the function already ends
with return something
On 11/11/2014 2:40 PM, Peter Cacioppi wrote:
I get the impression that most Pythonistas aren't as habituated with
assert statements as I am. Is that just a misimpression on my part?
If not, is there a good reason to assert less with Python than other
languages?
We love 'assert' so much that we
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