date:20140724


On 7/24/2014 1:15 AM, Saimadhav Heblikar wrote:

On 24 July 2014 05:54, Terry Reedy tjre...@udel.edu wrote:

On 7/23/2014 6:43 AM, Saimadhav Heblikar wrote:


Hi,

The example in question is

https://docs.python.org/3/library/asyncio-task.html#example-hello-world-coroutine.
I'd like to learn the purpose of the statement
yield from asyncio.sleep(2) in that example.

In particular, I'd like to know if asyncio.sleep() is used as a
substitute for slow/time consuming operation, i.e. in real code,
whether there will be a real time consuming statement in place of
asyncio.sleep().



The context is
 while True:
 print('Hello')
 yield from asyncio.sleep(3)

sleep is both itself, to shown to schedule something at intervals in a
non-blocking fashion, as well as a placefiller.  The blocking equivalent
would use 'time' instead of 'yield from asyncio'. The following shows the
non-blocking feature a bit better.

import asyncio

@asyncio.coroutine
def hello():
 while True:
 print('Hello')
 yield from asyncio.sleep(3)

@asyncio.coroutine
def goodbye():
 while True:
 print('Goodbye')
 yield from asyncio.sleep(5.01)

@asyncio.coroutine
def world():
 while True:
 print('World')
 yield from asyncio.sleep(2.02)

loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.wait([hello(), goodbye(), world()]))

Getting the same time behavior in a while...sleep loop requires reproducing
some of the calculation and queue manipulation included in the event loop.

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That clears it up for me. For situations where I dont really know how
long a function is going to take(say waiting for user input or a
network operation), I am better off using callbacks than yield from
asyncio.sleep(). Is my understanding correct?


The question is not formulated very well. In asyncio parlance, 'using 
callbacks' contrasts with 'using co-routines'.  It is a coding-style 
contrast. Tkinter only has the callback style.


On the other hand, waiting (via sleep, without blocking other tasks) for 
a definite time interval contrasts with waiting (without blocking other 
tasks) until an event happens.  This is an operational contrast. Tkinter 
has both possibilities, using call_after versus event-handler 
registration.  I believe asyncio can do either type of waiting with 
either coding style.


18.5.3. Tasks and coroutines, seems to be devoid of event wait examples. 
However, there is a 'yield from' network example in 18.5.5 Streams using 
socket functions wrapped with coroutines. These should definitely be 
used instead of sleep. In fact, for cross-platform network code meant to 
run on *nix and Windows, they are better than the unix oriented select 
and poll functions.


I believe asyncio does not do key events, even though that is a form of 
unpredictable input.


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one to many (passing variables)

2014-07-24 Thread Martin S

My coding is slowly (*) progress at the moment. Looking at my more or
less horrible efforts so far one (well that's understatement)
questions pops up. How do you pass data from one function to many?

I have functions A B and C. If data generated in A is useable in both
B and C how do I ensure this data is passed as needed? Or is it a
symptom of bad code?

(* it's too hot (30 C + all week, and also this:
https://imagizer.imageshack.us/v2/415x311q90/673/a9d1a5.jpg)

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Re: one to many (passing variables)

On Thu, Jul 24, 2014 at 4:36 PM, Martin S shieldf...@gmail.com wrote:
 How do you pass data from one function to many?

 I have functions A B and C. If data generated in A is useable in both
 B and C how do I ensure this data is passed as needed? Or is it a
 symptom of bad code?

This is a little vague. Is there one function which calls A and then
calls B and C? What's the relationship between them? Is it logical for
A to itself call B and C? Are they all methods off one object?
Top-level functions in a module?

ChrisA
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Re: Question about asyncio doc example

2014-07-24 Thread Marko Rauhamaa

Terry Reedy tjre...@udel.edu:

 18.5.3. Tasks and coroutines, seems to be devoid of event wait
 examples. However, there is a 'yield from' network example in 18.5.5
 Streams using socket functions wrapped with coroutines. These should
 definitely be used instead of sleep. In fact, for cross-platform
 network code meant to run on *nix and Windows, they are better than
 the unix oriented select and poll functions.

Asyncio has full support for the callback style as well. What I don't
know is how well the two styles mix. Say, you have a module that
produces callbacks and another one that is based on coroutines. The
coroutines can easily emit callbacks but can callbacks call yield
from?


Marko
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Re: one to many (passing variables)

2014-07-24 Thread Martin S

Function A collects data and then calls function B with some, but also has data 
that should be passed to function C. 

But ofc if nested functions are allowed then that might solve the issue. I 
don't think I've seen nested functions mentioned in a tutorial I've been 
looking at. 

/martin s

On 24 Jul 2014, Chris Angelico ros...@gmail.com wrote:
On Thu, Jul 24, 2014 at 4:36 PM, Martin S shieldf...@gmail.com wrote:
 How do you pass data from one function to many?

 I have functions A B and C. If data generated in A is useable in both
 B and C how do I ensure this data is passed as needed? Or is it a
 symptom of bad code?

This is a little vague. Is there one function which calls A and then
calls B and C? What's the relationship between them? Is it logical for
A to itself call B and C? Are they all methods off one object?
Top-level functions in a module?

ChrisA

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Re: one to many (passing variables)

On Thu, Jul 24, 2014 at 5:27 PM, Martin S shieldf...@gmail.com wrote:
 Function A collects data and then calls function B with some, but also has
 data that should be passed to function C.

 But ofc if nested functions are allowed then that might solve the issue. I
 don't think I've seen nested functions mentioned in a tutorial I've been
 looking at.

Nested functions shouldn't be necessary.

Just start writing code, then figure out what needs to go where. As
long as you give a name to everything you need to keep track of,
you'll find that pretty much everything 'just works'.

ChrisA
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Re: one to many (passing variables)

On Thu, 24 Jul 2014 09:27:10 +0200, Martin S wrote:

 Function A collects data and then calls function B with some, but also
 has data that should be passed to function C.

It might help if you give a bit more information. How does it collect 
data, how does it decide which bits of information should be passed to B 
and which to C, and what happens with the results returned from B and C?

But something like this should give you an idea:


def funca(values):
data_for_b = []
data_for_c = []
for value in values:
if 0  value = 100:
data_for_b.append(value)
elif 100  value = 200:
data_for_c.append(value)
# otherwise just discard it
result_from_b = funcb(data_for_b)
result_from_a = funcc(data_for_c)
return max(result_from_b, result_from_a)


def funcb(values):
return 5*sum(values)

def funcc(values):
return 2*sum(values) - 200


print(funca([2, 5, 107, 99, 1999, 2345, 84, 156, 23]))


If you run that code, it should print 1065.


If this is not what you mean, I'm afraid you're going to have to explain 
what exactly you do mean, because I have no other ideas :-)


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Re: one to many (passing variables)

2014-07-24 Thread Ben Finney

Martin S shieldf...@gmail.com writes:

 I have functions A B and C. If data generated in A is useable in both
 B and C how do I ensure this data is passed as needed? Or is it a
 symptom of bad code?

This is very vague; an accurate answer is “it depends”.

You seem to be asking about how to design your data structures and APIs.
This is less a Python-specific question and more a matter of experience
and judgement.

Here is an article on good API design; the principles apply to Python
URL:http://blog.isnotworking.com/2007/05/api-design-guidelines.html.
You know your API and its requirements better than we; see whether that
sheds any light on improvements to make.

It sounds like you are needing to decide how to arrange the data
structures. You need to find natural divisions and groupings, such that
you can refer to groupings of properties that make sense and that are
not too unwieldy.

-- 
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  `\ will not admit of even the *possibility* of correction.” —Sam |
_o__) Harris, _The End of Faith_, 2004 |
Ben Finney

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Re: My sys.excepthook dies painfully

On Thu, 24 Jul 2014 11:50:47 +1000, Chris Angelico wrote:

 On Thu, Jul 24, 2014 at 11:30 AM, Steven D'Aprano
 steve+comp.lang.pyt...@pearwood.info wrote:
 However, I think I have a glimmer of an idea for how the global
 variable might be set to None. When the Python interpreter shuts down,
 it sets global variables to None in some arbitrary order. If the
 excepthook function isn't called until after the shutdown process
 begins, then depending on the phase of the moon, it's possible that
 ``mylogger`` may have been set to None by the time it is called.
 
 In other words, the problem changed when you added the NameError trigger
 at the bottom of the script?

Not quite. The problem changed when I reduced the code from the real code 
(about a dozen modules) down to the short sample I've given. Except 
that's not quite either -- even with the original code, I wasn't 
originally getting the double traceback either.

I've just stuck some print statements inside the exception handler, and 
just before the foo:

print 'sys, mylogger', sys, mylogger
foo


They have their expected values just before foo, but inside the 
excepthook function they are both None.


 Would it be possible to snapshot all critical globals with a closure, to
 force them to be held? Something like:

Probably. Or even as default argument parameters. But I'd like to know if 
that's actually fixing it or just perturbing the system enough that the 
bug won't show up until next time the moon is full.


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Re: OT: usenet reader software

2014-07-24 Thread cl

Sturla Molden sturla.mol...@gmail.com wrote:
 Monte Milanuk memila...@gmail.com wrote:
  Aaaannnd here we have a good example of why it would be really nice to
  be able to filter/score based on the message *body*, not just the
  headers. 8(
 
 Actually, here we have the reason why Usenet died.
 
... and the alternatives have the ability to filter/score based on
the message body do they?  :-)

-- 
Chris Green
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Re: My sys.excepthook dies painfully

On Thu, Jul 24, 2014 at 8:12 PM, Steven D'Aprano st...@pearwood.info wrote:
 Would it be possible to snapshot all critical globals with a closure, to
 force them to be held? Something like:

 Probably. Or even as default argument parameters. But I'd like to know if
 that's actually fixing it or just perturbing the system enough that the
 bug won't show up until next time the moon is full.

If the problem is that there's a circular reference (function to
module, module to function) and stuff's getting cleaned up in
arbitrary order, the snapshotting should cure it, as it's a one-way
reference. But since I can't recreate the exact symptoms you're
seeing, it's hard for me to be sure...

ChrisA
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Re: Distributing python applications as a zip file

2014-07-24 Thread Alan

On Wednesday, July 23, 2014 4:43:11 AM UTC-4, Leo jay wrote:
 But if you use windows and you happen to use multiprocessing,
 please be aware of this bug I encountered several years ago.
 https://mail.python.org/pipermail/python-dev/2011-December/115071.html


It looks like this was fixed for 3.2.  Was the fix ever backported to 2.7?

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What is the simplest method to get a vector result?

Hi,
I have read a lot about Python, but it still has a problem now on a simple
exercise. For example, I want to generate a sine curve. First, I get a time 
sequence: 

index=range(100)

I import math module, try to calculate sine with

math.sin(index*math.pi/2)

but it fails.

It is possible to use a for loop, but I don't know how to save each result to an
array.

I have gone through several tutorial, but they are all about using print right
away. I want to get an array, or a series, then plot it with 

import matplotlib.pyplot as plt

I have installed plot module and it works already. I am a little hurry for an 
project interview and would like to ask here besides I continue search on 
tutorial.


Thanks,
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Re: What is the simplest method to get a vector result?

2014-07-24 Thread Alan

You can use `list(math.sin(x * math.pi / 2) for x in index)` or use `numpy`, 
which supports array math.
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Re: What is the simplest method to get a vector result?

2014-07-24 Thread Vlastimil Brom

2014-07-24 14:53 GMT+02:00 fl rxjw...@gmail.com:
 Hi,
 I have read a lot about Python, but it still has a problem now on a simple
 exercise. For example, I want to generate a sine curve. First, I get a time
 sequence:

 index=range(100)

 I import math module, try to calculate sine with

 math.sin(index*math.pi/2)

 but it fails.

 It is possible to use a for loop, but I don't know how to save each result to 
 an
 array.

 I have gone through several tutorial, but they are all about using print right
 away. I want to get an array, or a series, then plot it with

 import matplotlib.pyplot as plt

 I have installed plot module and it works already. I am a little hurry for an
 project interview and would like to ask here besides I continue search on
 tutorial.


 Thanks,
 --

Hi,
depending on your actual needs, you may also try a specialised library
like mpmath, which also supports plotting (and uses matplotlib
internally):
http://mpmath.org/
Using the sensible defaults, the plotting of a function can be as simple as:

mpmath.plot(mpmath.sin)

As for your original question, you can use a library designed for
working with this data:
http://www.numpy.org/

numpy.arange(100) * numpy.pi

hth,
   vbr
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Re: What is the simplest method to get a vector result?

On Thu, 24 Jul 2014 05:53:12 -0700, fl wrote:

 Hi,
 I have read a lot about Python, but it still has a problem now on a
 simple exercise. For example, I want to generate a sine curve. First, I
 get a time sequence:
 
 index=range(100)
 
 I import math module, try to calculate sine with
 
 math.sin(index*math.pi/2)
 
 but it fails.
 
 It is possible to use a for loop, but I don't know how to save each
 result to an array.

That is a fundamental, basic part of programming in Python. If you don't 
learn the basics, you will never be a good programmer. Have you done any 
Python tutorials? It's not enough to read them, you must actually do the 
work.

This might get you started:


results = []  # Start with an empty list.
for value in range(100):
results.append(math.sin(value))


but that probably will not give you the results you are hoping for, as 
sin expects the angles to be given in radians.

Perhaps you mean to scale the angles over a full circle?


tau = 2*math.pi  # number of radians in a full circle
angles = []
values = []
for i in range(100):
angle = i*tau/100.0
angles.append(angle)
values.append(math.sin(angle))


Alternatively, here's a slightly shorter way:

angles = [i*tau/100.0 for i in range(100)]
values = [math.sin(angle) for angle in angles]



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Re: What is the simplest method to get a vector result?

2014-07-24 Thread Marko Rauhamaa

fl rxjw...@gmail.com:

 I have read a lot about Python, but it still has a problem now on a
 simple exercise. For example, I want to generate a sine curve.

Here you go:


#!/usr/bin/env python3

import math

for x in range(0, 361, 15):
print(int((math.sin(x / 180 * math.pi) + 1) * 30 + 0.5) *   + *)



Marko
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Exploring Python for next desktop GUI Project

2014-07-24 Thread Noble Bell

I am exploring the idea of creating my next desktop GUI project in Python and 
would like a little advice from you folks about a couple of requirements.

My requirements will be:
1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)
2. Python 2 or 3? Which will serve me better in the future?

Thanks in advance.
Noble

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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread INADA Naoki

1. PyQt (or PySide)
2. Python 2 will be legacy soon. Use Python 3 for new project.

wxPython is also good option but doesn't support Python 3 for now.
I don't know when wxPhenix (next wxPython supporting Python 3) will be released.

On Fri, Jul 25, 2014 at 12:57 AM, Noble Bell nobleb...@gmail.com wrote:
 I am exploring the idea of creating my next desktop GUI project in Python and 
 would like a little advice from you folks about a couple of requirements.

 My requirements will be:
 1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)
 2. Python 2 or 3? Which will serve me better in the future?

 Thanks in advance.
 Noble

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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 10:57 AM, Noble Bell nobleb...@gmail.com wrote:
 I am exploring the idea of creating my next desktop GUI project in Python and 
 would like a little advice from you folks about a couple of requirements.

 My requirements will be:
 1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)

The Python standard library includes the tkinter package, which is an
interface to Tcl/Tk.  The 'ttk' module provides themed/themable
widgets that have the platform-native look by default.  I've
successfully used tkinter for a few projects, and have kept most of my
sanity :).  One of the biggest benefits to tkinter is that, since it
is included with Python, so you don't have to distribute a separate
GUI toolkit.

 2. Python 2 or 3? Which will serve me better in the future?

Python 3 is the future of Python, but Python 2(.7) is still alive and
kicking.  I would suggest sticking to Python 3 if at all possible, but
revert back to 2.7 (no farther! :) if you have dependencies that you
can't escape that rely on Python 2.  If you're just learning Python,
learn with Python 3 before you start with Python 2, even if you'll
wind up using Python 2.  Python 3 is easier to learn in the first
place, and it's easier to learn the transition from 3-2 than 2-3.

Hope this helps,
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Re: Exploring Python for next desktop GUI Project

On Fri, Jul 25, 2014 at 1:57 AM, Noble Bell nobleb...@gmail.com wrote:
 I am exploring the idea of creating my next desktop GUI project in Python and 
 would like a little advice from you folks about a couple of requirements.

 My requirements will be:
 1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)
 2. Python 2 or 3? Which will serve me better in the future?

 Thanks in advance.

The first one is certainly possible. Pick any of the well-known
toolkits (Tkinter, wxwidgets, GTK, etc), and see how it feels. All of
them are portable across the three platforms you name, so see which
one is most comfortable for you to code in and produces the best
results.

Definitely Python 3. If you don't have anything specifically holding
you to Python 2, take Python 3 and get all the latest features. Most
importantly, you'll never run into troubles with Unicode.

ChrisA
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Noble Bell

On Thursday, July 24, 2014 10:57:22 AM UTC-5, Noble Bell wrote:
 I am exploring the idea of creating my next desktop GUI project in Python and 
 would like a little advice from you folks about a couple of requirements.
 
 
 
 My requirements will be:
 
 1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)
 
 2. Python 2 or 3? Which will serve me better in the future?
 
 
 
 Thanks in advance.
 
 Noble

I was leaning toward Python 3 and Tkinter. I suppose the best way to do the GUI 
with Tkinter is to just roll-up my sleeves and do it via code rather than with 
the aid of a GUI editor.

Thanks to all of you for your replies. 
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Grant Edwards

On 2014-07-24, Zachary Ware zachary.ware+pyl...@gmail.com wrote:
 On Thu, Jul 24, 2014 at 10:57 AM, Noble Bell nobleb...@gmail.com wrote:
 I am exploring the idea of creating my next desktop GUI project in Python 
 and would like a little advice from you folks about a couple of requirements.

 My requirements will be:
 1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)

 The Python standard library includes the tkinter package, which is an
 interface to Tcl/Tk.

That's not always true for Linux systems.  AFAIK, all Linux installs
include Python (of some version or other), but they don't always
include tcl/tk and tkinter. It's usually easy enough to add them, but
but they're not really part of the standard library if they have to
be separately intsalled.

-- 
Grant Edwards   grant.b.edwardsYow! Uh-oh!!  I'm having
  at   TOO MUCH FUN!!
  gmail.com
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Re: Exploring Python for next desktop GUI Project

On Fri, Jul 25, 2014 at 2:29 AM, Noble Bell nobleb...@gmail.com wrote:
 I was leaning toward Python 3 and Tkinter. I suppose the best way to do the 
 GUI with Tkinter is to just roll-up my sleeves and do it via code rather than 
 with the aid of a GUI editor.

Yep. In fact, I recommend that for all GUI toolkits; instead of
thinking about your layout in terms of positions of widgets on a
window, think about it in terms of what your toolkit provides you with
- usually that'll be some kind of tree structure of layout objects,
like vertical and horizontal boxes. And if you plan your layout that
way, you may as well just write it directly as code.

ChrisA
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Re: Question about asyncio doc example

On Jul 24, 2014 1:26 AM, Marko Rauhamaa ma...@pacujo.net wrote:

 Terry Reedy tjre...@udel.edu:

  18.5.3. Tasks and coroutines, seems to be devoid of event wait
  examples. However, there is a 'yield from' network example in 18.5.5
  Streams using socket functions wrapped with coroutines. These should
  definitely be used instead of sleep. In fact, for cross-platform
  network code meant to run on *nix and Windows, they are better than
  the unix oriented select and poll functions.

 Asyncio has full support for the callback style as well. What I don't
 know is how well the two styles mix. Say, you have a module that
 produces callbacks and another one that is based on coroutines. The
 coroutines can easily emit callbacks but can callbacks call yield
 from?

Callbacks can easily schedule coroutines, but they can't wait on them,
because that would require suspending their execution, dropping back to the
event loop, and resuming later -- in other words, the callback would need
to be a coroutine also.
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Chris “Kwpolska” Warrick

On Jul 24, 2014 6:28 PM, Zachary Ware zachary.ware+pyl...@gmail.com
wrote:

 On Thu, Jul 24, 2014 at 10:57 AM, Noble Bell nobleb...@gmail.com wrote:
  I am exploring the idea of creating my next desktop GUI project in
Python and would like a little advice from you folks about a couple of
requirements.
 
  My requirements will be:
  1. Needs to be portable across platforms with native LAF
(Windows,Linux,OSX)

 The Python standard library includes the tkinter package, which is an
 interface to Tcl/Tk.  The 'ttk' module provides themed/themable
 widgets that have the platform-native look by default.  I've
 successfully used tkinter for a few projects, and have kept most of my
 sanity :).  One of the biggest benefits to tkinter is that, since it
 is included with Python, so you don't have to distribute a separate
 GUI toolkit.

Tk is neither sane nor native-feeling, especially on Linux, where it looks
like something from two decades ago. On other platforms, it also is not
100% native.

I personally recommend PyQt4/PySide. wxPython is also worth checking out.
And it might be better to stay with Python 2, there are still things that
don't work with Py3k that you might find crucial.

-- 
Chris “Kwpolska” Warrick http://chriswarrick.com/
Sent from my SGS3.
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Re: Exploring Python for next desktop GUI Project

On Fri, Jul 25, 2014 at 3:04 AM, Chris “Kwpolska” Warrick
kwpol...@gmail.com wrote:
 I personally recommend PyQt4/PySide. wxPython is also worth checking out.
 And it might be better to stay with Python 2, there are still things that
 don't work with Py3k that you might find crucial.

Can you be more specific? Python 3 should be the default for new
projects unless there's a good reason for going Py2.

Chrisa
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Re: Question about asyncio doc example

2014-07-24 Thread Marko Rauhamaa

Ian Kelly ian.g.ke...@gmail.com:

 Callbacks can easily schedule coroutines, but they can't wait on them,
 because that would require suspending their execution, dropping back
 to the event loop, and resuming later -- in other words, the callback
 would need to be a coroutine also.

I guess the key is, can a callback release a lock or semaphore, notify a
condition variable, or put an item into a queue that a coroutine is
waiting on?

Quite possibly. Didn't try it. In that case, callbacks mix just fine
with coroutines.


Marko
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How can I import unnecessary_math?

Hi,
I want to write some test code. Some on-line tutorials have such codes:


from unnecessary_math import multiply

When it runs, it has errors:

 from unnecessary_math import multiply
Traceback (most recent call last):
  File interactive input, line 1, in module
ImportError: No module named unnecessary_math

I have not found anywhere to download it. What explanation about the module:

from unnecessary_math import multiply



Thanks,






from nose import with_setup # optional

from unnecessary_math import multiply

def setup_module(module):
print () # this is to get a newline after the dots
print (setup_module before anything in this file)

def teardown_module(module):
print (teardown_module after everything in this file)

def my_setup_function():
print (my_setup_function)

def my_teardown_function():
print (my_teardown_function)
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Re: How can I import unnecessary_math?

On Fri, Jul 25, 2014 at 3:33 AM, fl rxjw...@gmail.com wrote:
 Hi,
 I want to write some test code. Some on-line tutorials have such codes:


 from unnecessary_math import multiply

Which tutorials? That's where you'll find the answer to your question.

ChrisA
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Re: How can I import unnecessary_math?

On Thu, Jul 24, 2014 at 11:33 AM, fl rxjw...@gmail.com wrote:
 Hi,
 I want to write some test code. Some on-line tutorials have such codes:


 from unnecessary_math import multiply

 When it runs, it has errors:

 from unnecessary_math import multiply
 Traceback (most recent call last):
   File interactive input, line 1, in module
 ImportError: No module named unnecessary_math

 I have not found anywhere to download it. What explanation about the module:

 from unnecessary_math import multiply

A little bit of searching turns up this:

https://github.com/okken/markdown.py/blob/master/simple_example/unnecessary_math.py

It appears to be used as a simple example library for a doctesting demo.
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Re: How can I import unnecessary_math?

On Thursday, July 24, 2014 1:37:49 PM UTC-4, Chris Angelico wrote:
 On Fri, Jul 25, 2014 at 3:33 AM, fl r...@gmail.com wrote:
  Hi,
  I want to write some test code. Some on-line tutorials have such codes:
 
 
  from unnecessary_math import multiply
 Which tutorials? That's where you'll find the answer to your question.
 ChrisA

Thanks. The source of that snippet is from this link:

http://pythontesting.net/framework/nose/nose-introduction/


I do not find any idea on that module yet.
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Re: How can I import unnecessary_math?

On Thursday, July 24, 2014 1:48:02 PM UTC-4, fl wrote:
 On Thursday, July 24, 2014 1:37:49 PM UTC-4, Chris Angelico wrote:
 
  On Fri, Jul 25, 2014 at 3:33 AM, fl rx...@gmail.com wrote:
 
 Thanks. The source of that snippet is from this link:
 
 
 http://pythontesting.net/framework/nose/nose-introduction/
 
 
 I do not find any idea on that module yet.

It is also a question about the symbol '@' on that link.

I don't find an explanation about '@' yet. Could you tell me?

Thanks,



@with_setup(my_setup_function, my_teardown_function)
def test_numbers_3_4():
print 'test_numbers_3_4   actual test code'
assert multiply(3,4) == 12

@with_setup(my_setup_function, my_teardown_function)
def test_strings_a_3():
print 'test_strings_a_3   actual test code'
assert multiply('a',3) == 'aaa'
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Re: How can I import unnecessary_math?

On Fri, Jul 25, 2014 at 3:54 AM, fl rxjw...@gmail.com wrote:
 It is also a question about the symbol '@' on that link.

 I don't find an explanation about '@' yet. Could you tell me?

 Thanks,



 @with_setup(my_setup_function, my_teardown_function)
 def test_numbers_3_4():
 print 'test_numbers_3_4   actual test code'
 assert multiply(3,4) == 12


That's a function decorator. You can look them up on the web now that
you know what they're called. :)

ChrisA
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Mark Lawrence


On 24/07/2014 17:18, Chris Angelico wrote:

On Fri, Jul 25, 2014 at 1:57 AM, Noble Bell nobleb...@gmail.com wrote:

I am exploring the idea of creating my next desktop GUI project in Python and 
would like a little advice from you folks about a couple of requirements.

My requirements will be:
1. Needs to be portable across platforms with native LAF (Windows,Linux,OSX)
2. Python 2 or 3? Which will serve me better in the future?

Thanks in advance.


The first one is certainly possible. Pick any of the well-known
toolkits (Tkinter, wxwidgets, GTK, etc), and see how it feels. All of
them are portable across the three platforms you name, so see which
one is most comfortable for you to code in and produces the best
results.


s/wxwidgets/wxpython/ unless you fancy wrapping it yourself :)



Definitely Python 3. If you don't have anything specifically holding
you to Python 2, take Python 3 and get all the latest features. Most
importantly, you'll never run into troubles with Unicode.


Definitely definitely Python 3.  It's The Comfy Chair who anybody having 
the audacity to disagreee on this!!!




ChrisA



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My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.


Mark Lawrence

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Re: Exploring Python for next desktop GUI Project

On Fri, Jul 25, 2014 at 4:04 AM, Mark Lawrence breamore...@yahoo.co.uk wrote:
 On 24/07/2014 17:18, Chris Angelico wrote:
 The first one is certainly possible. Pick any of the well-known
 toolkits (Tkinter, wxwidgets, GTK, etc), and see how it feels. All of
 them are portable across the three platforms you name, so see which
 one is most comfortable for you to code in and produces the best
 results.


 s/wxwidgets/wxpython/ unless you fancy wrapping it yourself :)


Yeah that. And pygtk rather than GTK. Or I could have gone the other
way and said Tk instead of Tkinter. One way or another, I ought to
have been more consistent. Anyway. Pick a good toolkit, get to know
it, and use it. Personally, I like GTK, but that's partly because its
bindings come with Pike, and I did GUI work with Pike before I did
with Python; the same advantage, for someone starting with Python,
goes to Tk. But the main thing is, it's easy to be cross-platform -
take whatever feels good to you.

ChrisA
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Re: How can I import unnecessary_math?


On 7/24/2014 1:58 PM, Chris Angelico wrote:

On Fri, Jul 25, 2014 at 3:54 AM, fl rxjw...@gmail.com wrote:

It is also a question about the symbol '@' on that link.

I don't find an explanation about '@' yet. Could you tell me?


The Python docs have an index. I STRONGLY recommend that everyone learn 
to use it. The index starts with a Symbols page.

https://docs.python.org/3/genindex-Symbols.html
The page may not be complete yet (I plan to recheck sometime), but it 
has an entry for '@'. If you do not want to search the page for '@', 
your browser find function (typically control-F) should find it for you. 
That entry takes you to

https://docs.python.org/3/reference/compound_stmts.html#index-20


@with_setup(my_setup_function, my_teardown_function)
def test_numbers_3_4():
 print 'test_numbers_3_4   actual test code'
 assert multiply(3,4) == 12



That's a function decorator. You can look them up on the web now that
you know what they're called. :)


The Symbol index page was added to make knowing names unnecessary.

--
Terry Jan Reedy

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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 11:37 AM, Grant Edwards invalid@invalid.invalid wrote:
 On 2014-07-24, Zachary Ware zachary.ware+pyl...@gmail.com wrote:
 The Python standard library includes the tkinter package, which is an
 interface to Tcl/Tk.

 That's not always true for Linux systems.  AFAIK, all Linux installs
 include Python (of some version or other), but they don't always
 include tcl/tk and tkinter. It's usually easy enough to add them, but
 but they're not really part of the standard library if they have to
 be separately intsalled.

There are several parts of the standard library that have external
dependencies (bz2, lzma, sqlite3, ssl, and tkinter, just off the top
of my head), which distributors may not decide to include.  That
doesn't mean they're not part of the standard library, but they are
optional parts.  Anyway, it may still be easier to declare a
dependency on tkinter than to distribute another toolkit with your
app, it depends entirely on the specific circumstances.

-- 
Zach
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Re: How can I import unnecessary_math?

On Thursday, July 24, 2014 1:58:45 PM UTC-4, Chris Angelico wrote:
 On Fri, Jul 25, 2014 at 3:54 AM, fl rxj...@gmail.com wrote:
  @with_setup(my_setup_function, my_teardown_function)
  def test_numbers_3_4():
  print 'test_numbers_3_4   actual test code'
  assert multiply(3,4) == 12
 
 That's a function decorator. You can look them up on the web now that
 
 you know what they're called. :)
 
 
 ChrisA

Thanks, I find the source of unnecessary_math at 
http://pythontesting.net/framework/doctest/doctest-introduction/
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Re: How can I import unnecessary_math?

On Fri, Jul 25, 2014 at 4:17 AM, Terry Reedy tjre...@udel.edu wrote:
 That's a function decorator. You can look them up on the web now that
 you know what they're called. :)


 The Symbol index page was added to make knowing names unnecessary.

And I clock this up on my learn something every day list. Was not
aware of that. Not surprised to know that it exists (it's certainly
far from unheard-of), but I wasn't specifically aware of it.

ChrisA
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Re: Using pyVmomi

2014-07-24 Thread Ethan Furman


On 07/23/2014 01:14 PM, Joseph L. Casale wrote:


I am doing some scripting with pyVmomi under 2.6.8 so the code may
run directly on a vmware esxi server.

As the code is long running, it surpasses the authentication timeout. For
anyone familiar with this code and/or this style of programming, does anyone
have a recommendation for an elegant authentication retry scheme for objects
passed to code that will intermittently access the properties invoking calls.

I'd prefer to not litter try/except blocks around the usage of the objects if
possible.


You could:

  - have a single point of entry that can check and, if necessary, revalidate

  - create a helper that checks and, if necessary, revalidate, which is then
called where ever needed

  - create a decorator that does the above for each function that needs it

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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 12:04 PM, Chris “Kwpolska” Warrick
kwpol...@gmail.com wrote:
 Tk is neither sane

How so?  Like any other facet of programming, using Tk(inter) has it's
frustrations, but for the most part it has always worked as expected
for me.  Granted, I haven't done anything terribly fancy.

 nor native-feeling, especially on Linux, where it looks
 like something from two decades ago.

The problem there is that on Linux, native could mean GTK, QT,
or something else entirely.  Also, just to make sure, you are talking
about ttk rather than plain tk, right?

 On other platforms, it also is not 100%
 native.

On Windows, at least, ttk comes very very close to it.

 I personally recommend PyQt4/PySide. wxPython is also worth checking out.

I have used neither of those, but I have seen many people report
happiness with them.  For anyone with experience with those toolkits
in other languages, those would be the obvious choices.

 And it might be better to stay with Python 2, there are still things that
 don't work with Py3k that you might find crucial.

I strongly disagree with this: there's no reason to stick with Python
2 until you have a dependency that you can't get rid of that
absolutely requires Python 2.x.  The fact that there are still things
that don't work with Py3k is irrelevant if you don't use them.  And
if you find that, halfway through building your app, you find that you
need to add a dependency that requires Python 2, just backport your
project.  In the majority of cases, it is very easy to port from
Python 3 to either the subset of Python that runs fine in both 2 and
3, or straight to 2.  It may just be a matter of going from:

   import tkinter as tk
   from tkinter import ttk

to:

   try:
   import tkinter as tk
   from tkinter import ttk
   except ImportError:
   import Tkinter as tk
   import ttk

It's not necessarily as easy to go from native Python 2 to 2and3 or 3
due to some incorrect assumptions that Python 2 will let you make, but
even that can be mitigated by writing your Python 2 code with Python 3
in the back of your mind.

-- 
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Re: Exploring Python for next desktop GUI Project

On Fri, Jul 25, 2014 at 4:33 AM, Zachary Ware
zachary.ware+pyl...@gmail.com wrote:
 On other platforms, it also is not 100%
 native.

 On Windows, at least, ttk comes very very close to it.

What exactly does that mean? The Windows default UI changed
significantly from W2K - XP - Win8, and each time, it's possible to
revert to the old styling; does ttk follow the rest of the OS in that?
And if so, does it achieve that by restricting you to a vicious subset
of functionality that can actually be implemented natively, or does it
try to reimplement as appropriate?

ChrisA
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Chris “Kwpolska” Warrick

On Thu, Jul 24, 2014 at 8:33 PM, Zachary Ware
zachary.ware+pyl...@gmail.com wrote:
 On Thu, Jul 24, 2014 at 12:04 PM, Chris “Kwpolska” Warrick
 kwpol...@gmail.com wrote:
 Tk is neither sane

 How so?  Like any other facet of programming, using Tk(inter) has it's
 frustrations, but for the most part it has always worked as expected
 for me.  Granted, I haven't done anything terribly fancy.

Pretty much everyone in the world hates Tcl and Tk.  Ask your favorite
search engine for some results.

i’ve tried to write a Tkinter thing once.  I don’t have a copy anymore
(consciously deleted), but I vaguely remember some issues with widgets
that do not work.  I also remember that the list of widgets is quite
small and not enough for many projects.

 nor native-feeling, especially on Linux, where it looks
 like something from two decades ago.

 The problem there is that on Linux, native could mean GTK, QT,
 or something else entirely.

The best way to handle this is just choose one of the two (wxwidgets
chose GTK 2, for example) and be considered native enough by most, as
people don’t really mind mixing them (as there are no good Qt web
browsers, and VLC uses Qt and not GTK)

 Also, just to make sure, you are talking about ttk rather than plain tk, 
 right?

ttk on Linux doesn’t change a thing.  It still uses the ugly, ancient,
motif-esque style:

https://www.google.com/search?q=tk+linuxtbm=isch

(also, off by 10 years, motif is actually from the 1980s.)

On Thu, Jul 24, 2014 at 8:51 PM, Chris Angelico ros...@gmail.com wrote:
 On Fri, Jul 25, 2014 at 4:33 AM, Zachary Ware
 zachary.ware+pyl...@gmail.com wrote:
 On other platforms, it also is not 100%
 native.

 On Windows, at least, ttk comes very very close to it.

 What exactly does that mean? The Windows default UI changed
 significantly from W2K - XP - Win8, and each time, it's possible to
 revert to the old styling; does ttk follow the rest of the OS in that?

There is one more catch, custom themes can be installed after you
patch some files (which can be done in 5 minutes by anyone with
sufficient googling and reading comprehension skills).

AFAIK, Qt follows the system style properly, and it looks quite native
on every Windows OS.  No idea about ttk though.

-- 
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PGP: 5EAAEA16
stop html mail | always bottom-post | only UTF-8 makes sense
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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 1:51 PM, Chris Angelico ros...@gmail.com wrote:
 On Fri, Jul 25, 2014 at 4:33 AM, Zachary Ware
 zachary.ware+pyl...@gmail.com wrote:
 On Windows, at least, ttk comes very very close to [a 100% native look].

 What exactly does that mean? The Windows default UI changed
 significantly from W2K - XP - Win8, and each time, it's possible to
 revert to the old styling; does ttk follow the rest of the OS in that?
 And if so, does it achieve that by restricting you to a vicious subset
 of functionality that can actually be implemented natively, or does it
 try to reimplement as appropriate?

It appears that ttk follows the rest of the OS just fine (just tested
on Win7, switching back and forth to the classic Windows theme), and
as yet I've not run into any restrictions because of it.

-- 
Zach
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Glenn Linderman


On 7/24/2014 11:15 AM, Chris Angelico wrote:

On Fri, Jul 25, 2014 at 4:04 AM, Mark Lawrence breamore...@yahoo.co.uk wrote:

On 24/07/2014 17:18, Chris Angelico wrote:

The first one is certainly possible. Pick any of the well-known
toolkits (Tkinter, wxwidgets, GTK, etc), and see how it feels. All of
them are portable across the three platforms you name, so see which
one is most comfortable for you to code in and produces the best
results.


s/wxwidgets/wxpython/ unless you fancy wrapping it yourself :)


Yeah that. And pygtk rather than GTK. Or I could have gone the other
way and said Tk instead of Tkinter. One way or another, I ought to
have been more consistent. Anyway. Pick a good toolkit, get to know
it, and use it. Personally, I like GTK, but that's partly because its
bindings come with Pike, and I did GUI work with Pike before I did
with Python; the same advantage, for someone starting with Python,
goes to Tk. But the main thing is, it's easy to be cross-platform -
take whatever feels good to you.

ChrisA
Not knowing any of these GUI platforms (although I've read some about 
Tk), I have some questions.


* Which of them use UTF-8 as their native Unicode interface?

* Which makes it easiest to discover and adjust font metrics such as 
kerning?


* Which makes it easiest to obtain bounding rectangles of a piece of text?

* Which makes it easiest to use a set of fonts such as Times (for Latin) 
and others for Cyrillic, Chinese, and Korean? Or which supplies a font 
configuration that can just be used for any language?


Glenn
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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 1:02 PM, Chris “Kwpolska” Warrick
kwpol...@gmail.com wrote:
 AFAIK, Qt follows the system style properly, and it looks quite native
 on every Windows OS.  No idea about ttk though.

My understanding is that Qt merely emulates the native LAF, although
it does a good job of it. wxPython on the other hand actually uses
native widgets wherever possible.
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Re: Exploring Python for next desktop GUI Project

On Thu, Jul 24, 2014 at 2:02 PM, Chris “Kwpolska” Warrick
kwpol...@gmail.com wrote:
 Pretty much everyone in the world hates Tcl and Tk.  Ask your favorite
 search engine for some results.

Whee, I'm an alien! ;)

I'm not saying Tk is the best thing since sliced bread, I just don't
see what so many people seem to hate about it.

 i’ve tried to write a Tkinter thing once.  I don’t have a copy anymore
 (consciously deleted), but I vaguely remember some issues with widgets
 that do not work.  I also remember that the list of widgets is quite
 small and not enough for many projects.

I have had no issues with widgets not working.  I will admit that the
widget set is fairly small, though.  You can get more from Tix (which
is also distributed with tkinter), but I haven't had any need for that
yet.

 The best way to handle this is just choose one of the two (wxwidgets
 chose GTK 2, for example) and be considered native enough by most, as
 people don’t really mind mixing them (as there are no good Qt web
 browsers, and VLC uses Qt and not GTK)

That's fair, and I agree that Tk should probably provide close to
GTK and close to QT themes for ttk[1].  As I understand it, though,
ttk gives almost complete control over the look of individual widgets,
so if you really don't like how your widget looks, change it!

 ttk on Linux doesn’t change a thing.  It still uses the ugly, ancient,
 motif-esque style:

 https://www.google.com/search?q=tk+linuxtbm=isch

 (also, off by 10 years, motif is actually from the 1980s.)

Motif is indeed ugly, but your search for 'tk linux' doesn't tell me
anything about 'ttk linux'.  I would be interested in the results of
the script below on Linux, which I may or may not be able to try for
myself later (but can't right now).

-- 
Zach

[1] Such themes might already exist, I haven't checked.  If anyone
wants to see what themes are available and how they look, try this
(2/3 compatible, also attached in case Gmail messes it up):


import sys

try:
import tkinter as tk
from tkinter import ttk
except ImportError:
import Tkinter as tk
import ttk

class App(object):
def __init__(self, root):
self.root = root
self.root.title('Theme tester')
self.info_label = ttk.Label(self.root,
text=Python {}.{} with Tcl/Tk {} on {}.format(
sys.version_info[0], sys.version_info[1],
self.root.tk.eval('info patchlevel'),
sys.platform))
self.info_label.pack()
self.theme_idx = 0
self.change_btn = ttk.Button(self.root,
 text='Change theme',
 command=self.change_theme
 )
self.change_btn.pack()
self.rb_var = tk.StringVar(self.root)
self.radiobtn = ttk.Radiobutton(self.root,
text='Radio button option 1',
variable=self.rb_var,
value='1')
self.radiobtn.pack()
self.radiobtn2 = ttk.Radiobutton(self.root,
 text='Radio button option 2',
 variable=self.rb_var,
 value='2')
self.radiobtn2.pack()
self.checkbtn = ttk.Checkbutton(self.root, text='Checkbutton')
self.checkbtn.pack()
self.entry = ttk.Entry(self.root)
self.entry.insert(0, 'Entry')
self.entry.pack()

self.style = ttk.Style(self.root)
self.available_themes = self.style.theme_names()

self.theme_label = ttk.Label(self.root, text='Platform default')
self.theme_label.pack()

def change_theme(self):
try:
theme = self.available_themes[self.theme_idx]
except IndexError:
theme = self.available_themes[0]
self.theme_idx = 0
self.style.theme_use(theme)
self.theme_label.configure(text=theme)

self.theme_idx += 1

root = tk.Tk()
app = App(root)
root.mainloop()
import sys

try:
import tkinter as tk
from tkinter import ttk
except ImportError:
import Tkinter as tk
import ttk

class App:
def __init__(self, root):
self.root = root
self.root.title('Theme tester')
self.info_label = ttk.Label(self.root,
text=Python {}.{} with Tcl/Tk {} on {}.format(
sys.version_info[0], sys.version_info[1],
self.root.tk.eval('info patchlevel'),
sys.platform))
self.info_label.pack()
self.theme_idx = 0
self.change_btn = ttk.Button(self.root,
 text='Change theme',
 command=self.change_theme
 )
self.change_btn.pack()
self.rb_var = tk.StringVar(self.root)
self.radiobtn = ttk.Radiobutton(self.root,

Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Noble Bell

On Thursday, July 24, 2014 2:32:04 PM UTC-5, Ian wrote:
 On Thu, Jul 24, 2014 at 1:02 PM, Chris Kwpolska Warrick
 
 kwpol...@gmail.com wrote:
 
  AFAIK, Qt follows the system style properly, and it looks quite native
 
  on every Windows OS.  No idea about ttk though.
 
 
 
 My understanding is that Qt merely emulates the native LAF, although
 
 it does a good job of it. wxPython on the other hand actually uses
 
 native widgets wherever possible.

If I were to us wxPython then I would be limited to Python 2.x at present. If I 
were to use PyQt I would have to pay, as I understand the licenses, for it to 
use in commercial programs and/or programs that I ask for donations. If I am 
not mistaken PyQT is available for Python 3. I am not familiar with PySide much 
other than I have heard, though, it is not being updated anymore.

Coming from development experience in Java I know how notorious and ugly GUI 
programming can be at times.

Doing development work at my day job in java/.net I just wanted to use 
something at home to tinker around with and do some hobby programming and 
perhaps sell something or such if I develop something useful. Python has struck 
my fancy.
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How to place several import .... lines in one .py file?

Hi,

I have seen several kinds of module import examples, but most of the programs 
are
small and less content. They only have one or two module import.

I'll use the following modules in a small project. I would like to know whether
it is appropriate to put all of them at the file header, like this:



import pandas as pd
import numpy as np
import sci
import matplotlib.pyplot as plt
from pandas import DataFrame




Because some modules are used only at the beginning or the end, does it 
recommend
to separate to place the import lines just before the associated function lines.




import pandas as pd

.
..
...
import numpy as np

.
...
.
import sci
..
.
...
import matplotlib.pyplot as plt
from pandas import DataFrame



Or, it recommends to have separate files for each main functionality, such as
input, process and output (plot etc.)?



Thanks,
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Re: How to place several import .... lines in one .py file?

On Thu, Jul 24, 2014 at 2:25 PM, fl rxjw...@gmail.com wrote:
 Hi,

 I have seen several kinds of module import examples, but most of the programs 
 are
 small and less content. They only have one or two module import.

 I'll use the following modules in a small project. I would like to know 
 whether
 it is appropriate to put all of them at the file header, like this:

http://legacy.python.org/dev/peps/pep-0008/#imports
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Rob Gaddi

On Thu, 24 Jul 2014 13:10:03 -0700 (PDT)
Noble Bell nobleb...@gmail.com wrote:
 
 If I were to us wxPython then I would be limited to Python 2.x at present. If 
 I were to use PyQt I would have to pay, as I understand the licenses, for it 
 to use in commercial programs and/or programs that I ask for donations. If I 
 am not mistaken PyQT is available for Python 3. I am not familiar with PySide 
 much other than I have heard, though, it is not being updated anymore.
 

I specifically switched from using wxPython to PySide when I decided
that I didn't want to keep building up more and more of my codebase on
Python 2.x., and didn't feel like wxPython Phoenix was ready for prime
time.

To the best of my knowledge, PySide is still under active
development, including as the day job for Robin Dunn, the lead
developer of wxPython.

-- 
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Email address domain is currently out of order.  See above to fix.
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Grant Edwards

On 2014-07-24, Zachary Ware zachary.ware+pyl...@gmail.com wrote:
 On Thu, Jul 24, 2014 at 12:04 PM, Chris “Kwpolska” Warrick
kwpol...@gmail.com wrote:
 Tk is neither sane

 How so?  Like any other facet of programming, using Tk(inter) has it's
 frustrations, but for the most part it has always worked as expected
 for me.  Granted, I haven't done anything terribly fancy.

 nor native-feeling, especially on Linux, where it looks
 like something from two decades ago.

 The problem there is that on Linux, native could mean GTK, QT,
 or something else entirely.  Also, just to make sure, you are talking
 about ttk rather than plain tk, right?

 On other platforms, it also is not 100%
 native.

 On Windows, at least, ttk comes very very close to it.

One of the Tk apps I maintain gets distributed to Windows users as
well as Linux users.  On my Win7 machine, it looks/acts like a native
(at least as much as a Linux user can tell).  None of the hardcore
windows guys who use it have ever mentioned that it looks or acts
oddly.

On Linux, it looks like crap and acts a little goofy -- sort of
vaguely old-school-Motif with non-standard keybindings.

-- 
Grant Edwards   grant.b.edwardsYow! BARRY ... That was
  at   the most HEART-WARMING
  gmail.comrendition of I DID IT MY
   WAY I've ever heard!!
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Re: Exploring Python for next desktop GUI Project

On 07/24/2014 01:11 PM, Glenn Linderman wrote:
 Not knowing any of these GUI platforms (although I've read some about 
 Tk), I have some questions.
 
 * Which of them use UTF-8 as their native Unicode interface?
 
 * Which makes it easiest to discover and adjust font metrics such as 
 kerning?
 
 * Which makes it easiest to obtain bounding rectangles of a piece of text?
 
 * Which makes it easiest to use a set of fonts such as Times (for Latin) 
 and others for Cyrillic, Chinese, and Korean? Or which supplies a font 
 configuration that can just be used for any language?

Given these new requirements, I think Qt with either PyQt or PySide is
really your only choice.  See the official Qt docs (C++, but same API
and will give you an idea of what's possible):
http://qt-project.org/doc/ .  Qt is probably the best documented of any
GUI framework.  On Windows and Mac it uses the native widget drawing
dlls so things appear native.  Making them feel native will require some
attention on your part, though. For example dialog ttgbutton order,
though I think there are convenience functions for doing that.  Qt is
fully unicode throughout.  Don't worry about what encoding is used
behind the scenes generally.  You can encode to UTF-8 when writing bytes
out, and decode from UTF-8 when reading bytes in.

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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Grant Edwards

On 2014-07-24, Chris “Kwpolska” Warrick kwpol...@gmail.com wrote:
 On Thu, Jul 24, 2014 at 8:33 PM, Zachary Ware
zachary.ware+pyl...@gmail.com wrote:
 On Thu, Jul 24, 2014 at 12:04 PM, Chris “Kwpolska” Warrick
 kwpol...@gmail.com wrote:
 Tk is neither sane

 How so?  Like any other facet of programming, using Tk(inter) has it's
 frustrations, but for the most part it has always worked as expected
 for me.  Granted, I haven't done anything terribly fancy.

 Pretty much everyone in the world hates Tcl and Tk.  Ask your favorite
 search engine for some results.

Tcl and Tk are both absolutely brilliant for doing trivial things.

Once the complexity starts to increase beyond hello world, click here
to exit, Tcl falls over almost immediately and starts flopping around
like a fish on a dock.  Tk hangs in there quite a bit longer and is
pretty useful as long as you've just got one main window and a few
dialog boxes.  IMO, it looks/acts native enough on Windows (at least
for the widgets I've used).  On Linux, it looks/acts non-native (not
GTK or Qt), but Linux users don't have an immediate brain sieze-up
when confronted with a slightly different UI, and they seem to be able
to use Tk apps just fine.

-- 
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  at   AGAIN ... I might as well
  gmail.compay a visit to the LADIES
   ROOM ...
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Re: Exploring Python for next desktop GUI Project

On 07/24/2014 12:51 PM, Chris Angelico wrote:
 On Fri, Jul 25, 2014 at 4:33 AM, Zachary Ware
 zachary.ware+pyl...@gmail.com wrote:
 On other platforms, it also is not 100%
 native.

 On Windows, at least, ttk comes very very close to it.
 
 What exactly does that mean? The Windows default UI changed
 significantly from W2K - XP - Win8, and each time, it's possible to
 revert to the old styling; does ttk follow the rest of the OS in that?
 And if so, does it achieve that by restricting you to a vicious subset
 of functionality that can actually be implemented natively, or does it
 try to reimplement as appropriate?

ttk, like Qt, uses the MS theming dll to do the widget drawing (buttons,
check boxes, etc).  So everything looks native.

As for actually being native, well, that means less and less every
passing year.  Windows applications use a plethora of GUI toolkits these
days.  In the old days everyone used what Win32 provided.  Then MS
started doing their own widgets in MS Office because the native ones are
a subset of desired functionality modern apps demands.  That opened the
flood gates.

So now many programs draw and control their own widgets.  It has led to
a certain amount of inconsistency, perhaps worse than we have in Linux.
 And some apps don't even bother with trying to look native anymore,
like a lot of antivirus, antimalware, and system optimization programs
(such as Advanced System Care).
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Re: Exploring Python for next desktop GUI Project

On 07/24/2014 01:32 PM, Ian Kelly wrote:
 On Thu, Jul 24, 2014 at 1:02 PM, Chris “Kwpolska” Warrick
 kwpol...@gmail.com wrote:
 AFAIK, Qt follows the system style properly, and it looks quite native
 on every Windows OS.  No idea about ttk though.
 
 My understanding is that Qt merely emulates the native LAF, although
 it does a good job of it. wxPython on the other hand actually uses
 native widgets wherever possible.

As I said previously in this thread, honestly this doesn't matter
anymore.  Even MS doesn't use native widgets in their own software.  Any
widget set worth its salt will draw using the theming dll so things look
consistent, but whether or not an app feels right depends on the
programmer.  Use the correct button order for the platform, the right
keyboard shortcuts, the right default button in dialog box behavior,
etc, and you'll do quite well.  OS X is a bit of a special case, but Qt
can be made to fit fairly well on OS X.

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Re: Exploring Python for next desktop GUI Project

On 07/24/2014 10:46 AM, Chris Angelico wrote:
 On Fri, Jul 25, 2014 at 2:29 AM, Noble Bell nobleb...@gmail.com wrote:
 I was leaning toward Python 3 and Tkinter. I suppose the best way to do the 
 GUI with Tkinter is to just roll-up my sleeves and do it via code rather 
 than with the aid of a GUI editor.
 
 Yep. In fact, I recommend that for all GUI toolkits; instead of
 thinking about your layout in terms of positions of widgets on a
 window, think about it in terms of what your toolkit provides you with
 - usually that'll be some kind of tree structure of layout objects,
 like vertical and horizontal boxes. And if you plan your layout that
 way, you may as well just write it directly as code.

As an exercise, yes this is valuable, but not necessary as a matter of
course. But I rarely code guis anymore.  I use Qt Designer for Qt apps,
and Glade-3 for GTK and then load the resulting XML into my app at
runtime.  The GUI designers expose the full layout management
capabilities of the toolkit.  In GTK terms that's generally hboxes or
vboxes with expansion flags.  In Qt it's the same but with springs to
consume space to make things grow and shrink appropriately.
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread ismeal shanshi


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Oxycontine Hydrocodone xanax and medicated marijuana US- free shipping and 
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CONTACT NUMBER: (407)-4852249 * Pleas text me only
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RE: Using pyVmomi

2014-07-24 Thread Joseph L. Casale

 You could:
 
- have a single point of entry that can check and, if necessary, revalidate
 
- create a helper that checks and, if necessary, revalidate, which is then
  called where ever needed
 
- create a decorator that does the above for each function that needs it

Hi Ethan,
Turns out the module in Pypi lacks what the latest release shipped with ESXi
and obviously what github has. There is apparently a restartable strategy that
I am working with now.

I thought of a decorator implementing the retry idiom but as these are simply
objects not functions that doesn't apply. I'd have to go options 1 or 2. 
Hopefully
the restartable strategy suffices.

Thanks,
jlc
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Re: Exploring Python for next desktop GUI Project

2014-07-24 Thread Gregory Ewing


Chris Angelico wrote:

The Windows default UI changed
significantly from W2K - XP - Win8, and each time, it's possible to
revert to the old styling;


Well, sort of. I find that using the classic theme with
Win7 is a less-than-satisfying experience, because it
still lays things out the same way as the Win7 theme,
resulting in big ugly gaps and a generally haphazard
appearance. I quickly gave up on it and learned to like
the new look. :-(

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Re: Exploring Python for next desktop GUI Project


On 7/24/2014 3:11 PM, Glenn Linderman wrote:


Not knowing any of these GUI platforms (although I've read some about
Tk), I have some questions.

* Which of them use UTF-8 as their native Unicode interface?


tk uses UCS-2 internally for the BMP subset. It does not display astral 
chars. tkinter iterfaces via with Python strings.



* Which makes it easiest to discover and adjust font metrics such as
kerning?


I believe tk can use whatever fonts are on the system. Idle gives me a 
choice of more than I want to look at.


Tk does kerning with proportional fonts, but I believe info and control 
is not user acccessible. The main available metrics are max ascender and 
descender sizes, for interline spacing.



* Which makes it easiest to obtain bounding rectangles of a piece of text?


The Text.bbox(index) returns the bounding rectangle for a character. 
Those can be combined as desired.



* Which makes it easiest to use a set of fonts such as Times (for Latin)
and others for Cyrillic, Chinese, and Korean? Or which supplies a font
configuration that can just be used for any language?


'any language' requires a nearly complete unicode font. One can tag 
character sequences, and configure properties, including color and font, 
that override the widget defaults. This is how Idle colorizes Python 
code by syntax category. One could just as easily tag by language or by 
alphabet.


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Re: Exploring Python for next desktop GUI Project


On 7/24/2014 1:04 PM, Chris “Kwpolska” Warrick wrote:


And it might be better to stay with Python 2, there are still
things that don't work with Py3k that you might find crucial.


It is true that there are 3rd-party modules that do not work with 3.x, 
including a few that one might want to use is a new project.


It is also true that there are language features in 3.4 that do not work 
with 2.x, or 3.2- or 3.3, including some that one might want to use in a 
new project.  For instance, Unicode works much better in 3.3 than in any 
version before. That is *only* available in 3.3+.


And it is true that there are 'feature' still in 2.7 that do not work in 
3.x.  But these are mostly nuisances that we are better of without.


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Re: What is the simplest method to get a vector result?

On Thursday, July 24, 2014 10:25:52 AM UTC-4, Marko Rauhamaa wrote:
 #!/usr/bin/env python3
 
 import math
 
 for x in range(0, 361, 15):
 
 print(int((math.sin(x / 180 * math.pi) + 1) * 30 + 0.5) *   + *)
 
 
 
 
 Marko

I like your method, but I get a column of '*'. Maybe you have other intentions
of your code. I am puzzled about the last part of your code and want to learn
from it (   *   + *   ).









   *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
  *
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Re: What is the simplest method to get a vector result?

On Thu, Jul 24, 2014 at 7:29 PM, fl rxjw...@gmail.com wrote:
 On Thursday, July 24, 2014 10:25:52 AM UTC-4, Marko Rauhamaa wrote:
 #!/usr/bin/env python3

 import math

 for x in range(0, 361, 15):

 print(int((math.sin(x / 180 * math.pi) + 1) * 30 + 0.5) *   + *)

 


 Marko

 I like your method, but I get a column of '*'. Maybe you have other intentions
 of your code. I am puzzled about the last part of your code and want to learn
 from it (   *   + *   ).

You probably ran it with Python 2. That code was written for Python 3
and assumes that division of two ints will return a float.  You can
also fix it by adding the line from __future__ import division at
the top of the file.
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Re: What is the simplest method to get a vector result?

2014-07-24 Thread Dave Angel

fl rxjw...@gmail.com Wrote in message:

 
  I am puzzled about the last part of your code and want to learn
 from it (   *   + *   ).
 

6 *   + x

will produce a string of 6 blanks followed by an x.



-- 
DaveA

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Re: What is the simplest method to get a vector result?

On Thu, 24 Jul 2014 22:44:51 -0400, Dave Angel wrote:

 fl rxjw...@gmail.com Wrote in message:
 
 
  I am puzzled about the last part of your code and want to learn
 from it (   *   + *   ).
 
 
 6 *   + x
 
 will produce a string of 6 blanks followed by an x.


Dave is correct, but if you want to format text to a certain width, it is 
better to have Python count how many spaces you need:


py 'spam'.rjust(20)
'spam'
py 'spam'.ljust(20)
'spam'
py 'spam'.center(20)
'spam'


In recent versions, you can even specify the fill character:

py 'spam'.center(20, '.')
'spam'


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ANN: bcolz 0.7.0, columnar, chunked and compressed datasets at your fingertips

2014-07-24 Thread Francesc Alted

==
Announcing bcolz 0.7.0
==

What's new
==

In this release, support for Python 3 has been added, Pandas and
HDF5/PyTables conversion, support for different compressors via latest
release of Blosc, and a new `iterblocks()` iterator.

Also, intensive benchmarking has lead to an important tuning of buffer
sizes parameters so that compression and evaluation goes faster than
ever. Together, bcolz and the Blosc compressor, are finally fullfilling
the promise of accelerating memory I/O, at least for some real
scenarios:

http://nbviewer.ipython.org/github/Blosc/movielens-bench/blob/master/querying-ep14.ipynb#Plots

``bcolz`` is a renaming of the ``carray`` project. The new goals for
the project are to create simple, yet flexible compressed containers,
that can live either on-disk or in-memory, and with some
high-performance iterators (like `iter()`, `where()`) for querying them.

For more detailed info, see the release notes in:
https://github.com/Blosc/bcolz/wiki/Release-Notes

What it is
==

bcolz provides columnar and compressed data containers. Column storage
allows for efficiently querying tables with a large number of columns.
It also allows for cheap addition and removal of column. In addition,
bcolz objects are compressed by default for reducing memory/disk I/O
needs. The compression process is carried out internally by Blosc, a
high-performance compressor that is optimized for binary data.

bcolz can use numexpr internally so as to accelerate many vector and
query operations (although it can use pure NumPy for doing so too).
numexpr optimizes the memory usage and use several cores for doing the
computations, so it is blazing fast. Moreover, the carray/ctable
containers can be disk-based, and it is possible to use them for
seamlessly performing out-of-memory computations.

bcolz has minimal dependencies (NumPy), comes with an exhaustive test
suite and fully supports both 32-bit and 64-bit platforms. Also, it is
typically tested on both UNIX and Windows operating systems.

Installing
==

bcolz is in the PyPI repository, so installing it is easy:

$ pip install -U bcolz

Resources
=

Visit the main bcolz site repository at:
http://github.com/Blosc/bcolz

Manual:
http://bcolz.blosc.org

Home of Blosc compressor:
http://blosc.org

User's mail list:
bc...@googlegroups.com
http://groups.google.com/group/bcolz

License is the new BSD:
https://github.com/Blosc/bcolz/blob/master/LICENSES/BCOLZ.txt

**Enjoy data!**

-- Francesc Alted
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Re: Question about Pass-by-object-reference?

2014-07-24 Thread alex23


On 23/07/2014 10:27 AM, Terry Reedy wrote:

When you call a function, Python binds function parameter names to
argument objects in the function's local namespace, the same as in name
assignments. Given

def f(a, b): pass

a call f(1, 'x') starts by executing

a, b = 1, 'x'

in the local namespace.  Nothing is being 'passed'.


The Dude: Look, nothing is passed, here, man.
The Big Lebowski: Nothing is passed?  The god damn argument has crashed 
into the parameter!



...sorry, it's been a long week.
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[issue22055] Incomplete sentence in asyncio BaseEventLoop doc

2014-07-24 Thread Saimadhav Heblikar


Changes by Saimadhav Heblikar saimadhavhebli...@gmail.com:


--
assignee: docs@python
components: Documentation, asyncio
files: asyncio-eventloop-doc-incomplete-sent.diff
keywords: patch
nosy: docs@python, gvanrossum, haypo, sahutd, yselivanov
priority: normal
severity: normal
status: open
title: Incomplete sentence in asyncio BaseEventLoop doc
versions: Python 3.4, Python 3.5
Added file: 
http://bugs.python.org/file36060/asyncio-eventloop-doc-incomplete-sent.diff

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[issue21580] PhotoImage(data=...) apparently has to be UTF-8 or Base-64 encoded

2014-07-24 Thread Terry J. Reedy


Terry J. Reedy added the comment:

I will try test the problem and fix on Windows within a day.

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[issue22052] Comparison operators called in reverse order for subclasses with no override.

2014-07-24 Thread Mark Dickinson


Mark Dickinson added the comment:

 the subclass provides doesn't actually imply anything about overriding, I 
 think.

Yes, that was the thrust of one of the SO answers.  Unfortunately, that 
explanation doesn't work for arithmetic operators, though: there an explicit 
override is necessary.  Here's another example, partly to get away from the 
extra complication of __eq__ being its own inverse.  After:

class A(object):
def __lt__(self, other): return True
def __gt__(self, other): return False
def __add__(self, other): return 1729
def __radd__(self, other): return 42

class B(A): pass

we get:

 A() + B()
1729
 A()  B()
False

So the addition is calling the usual __add__ method first (the special 
exception in the docs doesn't apply: while B *is* a subclass of A, it doesn't 
*override* A's __radd__ method).  But the comparison is (surprisingly) calling 
the __gt__ method first.

So we've got two different rules being followed: one for arithmetic operators, 
and a different one for comparisons.

This isn't a big deal behaviour-wise: I'm certainly not advocating a behaviour 
change here.  But it would be nice to document it.

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[issue16733] Solaris ctypes_test failures

2014-07-24 Thread Mark Lawrence


Mark Lawrence added the comment:

Only one Solaris box was online when I looked and that had passed ctypes tests, 
but surely this will have been sorted out by now?

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versions: +Python 3.5 -Python 3.3

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[issue18643] add a fallback socketpair() implementation in test.support


STINNER Victor added the comment:

 I don't remember why I added a specific check on the proto parameter.

I tested on Windows: socket.socket(proto=1) raises an 
OSError(WSAEPROTONOSUPPORT):


WSAEPROTONOSUPPORT 10043: Protocol not supported.

The requested protocol has not been configured into the system, or no 
implementation for it exists. For example, a socket call requests a SOCK_DGRAM 
socket, but specifies a stream protocol.


Since the error comes directly at socket.socket(), we drop drop the explicit 
test in socketpair().

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[issue21591] exec(a, b, c) not the same as exec a in b, c in nested functions

2014-07-24 Thread Dirkjan Ochtman


Dirkjan Ochtman added the comment:

I came up with a patch that shifts the compatibility hack we have for the tuple 
form of exec from run-time (in exec_statement()) to the CST-to-AST 
transformation (in ast_for_exec_stmt()). It seems to pass the tests (including 
the ones Robert pasted in here). Please review.

--
keywords: +patch
stage: needs patch - patch review
Added file: http://bugs.python.org/file36061/bug21591.patch

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[issue21591] exec(a, b, c) not the same as exec a in b, c in nested functions

2014-07-24 Thread Dirkjan Ochtman


Dirkjan Ochtman added the comment:

Oh, one specific question: I'm not sure if I should free the old expr1 (the 
top-level exec value) before overwriting it with the new one.

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[issue18643] add a fallback socketpair() implementation in test.support

2014-07-24 Thread Charles-François Natali


Charles-François Natali added the comment:

 By the way, we should reuse socket.socketpair() in
 asyncio.windows_utils. The Tulip is written for Python 3.3 and shares
 exactly the same code base, so you should write

 Something like:

 if hasattr(socket, 'socketpair'):
 socketpair = socket.socketpair
 else:
   def socketpair(...): ...

 Please also fix socketpair() in asyncio to add the while/drop unknown
 connection (well, the function in socket.py and windows_utils.py must
 be the same).

That's a separate issue.

 Oh, and you forgot to modify the documentation to update
 Availability. Please add a .. versionchanged:: 3.5 mentionning
 that the function is now also available on Windows.

Did you look at the patch?

363 .. versionchanged:: 3.5
364 Windows support added

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[issue19875] test_getsockaddrarg occasional failure

2014-07-24 Thread Mark Lawrence


Mark Lawrence added the comment:

Clearly the long term solution is to fix the problems in the cpython code 
referenced in msg205227, but in the short term is it worth attempting a work 
around as suggested in msg205131 ?

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[issue22055] Incomplete sentence in asyncio BaseEventLoop doc

2014-07-24 Thread Andrew Svetlov


New submission from Andrew Svetlov:

Fixed in f578e1d717b7 and f578e1d717b7.
Thanks.

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resolution:  - fixed
stage:  - resolved
status: open - closed

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[issue18643] add a fallback socketpair() implementation in test.support


STINNER Victor added the comment:

2014-07-24 10:11 GMT+02:00 Charles-François Natali rep...@bugs.python.org:
 Please also fix socketpair() in asyncio to add the while/drop unknown
 connection (well, the function in socket.py and windows_utils.py must
 be the same).

 That's a separate issue.

Ok.

 Oh, and you forgot to modify the documentation to update
 Availability. Please add a .. versionchanged:: 3.5 mentionning
 that the function is now also available on Windows.

 Did you look at the patch?

 363 .. versionchanged:: 3.5
 364 Windows support added

Ok, I missed this part.

In this case, socketpair-4.diff looks good to me. You can commit your
patch in Python 3.5.

I will open another issue to synchronize asyncio, maybe fix accept()
to check the address and drop the if proto != 0: test.

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[issue20055] On Windows NT 6 with administrator account, there are two failing tests on test_shutil.py

2014-07-24 Thread Roundup Robot


Roundup Robot added the comment:

New changeset 84f26a437893 by Victor Stinner in branch '3.4':
Issue #20055: Fix BaseEventLoop.stop() docstring, incomplete sentence.
http://hg.python.org/cpython/rev/84f26a437893

New changeset f657b64c67ab by Victor Stinner in branch 'default':
(Merge 3.4) Issue #20055: Fix BaseEventLoop.stop() docstring, incomplete
http://hg.python.org/cpython/rev/f657b64c67ab

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[issue22018] Add a new signal.set_wakeup_socket() function


STINNER Victor added the comment:

 I don't understand this. If you're ok with calling fileno() under Linux, why 
 not under Windows?

I propose to add set_wakeup_socket() for all platforms. This function doesn't 
really call the fileno() method, it gets the socket file descriptor/socket 
handle from the C structure.

I explained why I prefer to use an object rather than a number for 
set_wakeup_socket(). For example, it makes a clear separation between 
set_wakeup_fd(int) and set_wakeup_socket(socket).

Would you prefer to use the file descriptor/socket handler for 
set_wakeup_socket()?

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[issue19884] Importing readline produces erroneous output

2014-07-24 Thread Roundup Robot


Roundup Robot added the comment:

New changeset 0177d8a4e82a by Victor Stinner in branch '2.7':
Issue #19884: readline: Disable the meta modifier key if stdout is not a
http://hg.python.org/cpython/rev/0177d8a4e82a

New changeset 6303266beb80 by Victor Stinner in branch '3.4':
Issue #19884: readline: Disable the meta modifier key if stdout is not a
http://hg.python.org/cpython/rev/6303266beb80

New changeset f85a968f9e01 by Victor Stinner in branch 'default':
(Merge 3.4) Issue #19884: readline: Disable the meta modifier key if stdout is
http://hg.python.org/cpython/rev/f85a968f9e01

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[issue19884] Importing readline produces erroneous output


STINNER Victor added the comment:

I commited my patch.

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[issue21813] Enhance doc of os.stat_result

2014-07-24 Thread Roundup Robot


Roundup Robot added the comment:

New changeset 833325d45113 by Victor Stinner in branch '3.4':
Issue #21813: Enhance documentation of the os.stat_result class.
http://hg.python.org/cpython/rev/833325d45113

New changeset 5d70ac83d104 by Victor Stinner in branch 'default':
Issue #21813: Enhance documentation of the os.stat_result class.
http://hg.python.org/cpython/rev/5d70ac83d104

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[issue21813] Enhance doc of os.stat_result


STINNER Victor added the comment:

Thanks Zachary Ware for your review. I'm not sure that I addressed all your 
comments, but I'm not interested to spend too much time on the documentation. 
Please open an issue if your saw other things that can be improved.

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[issue1191964] add non-blocking read and write methods to subprocess.Popen

2014-07-24 Thread akira


akira added the comment:

STINNER Victor rep...@bugs.python.org writes:

 I have implemented and would continue to lean towards continuing to
 hide BrokenPipeError on the additional API endpoints.

 FYI asyncio.Process.communicate() ignores BrokenPipeError and
 ConnectionResetError, whereas asyncio.Process.stdin.drain() (coroutine
 to wait until all bytes are written) raises a BrokenPipeError or
 ConnectionResetError if the child process exited. I think subprocess
 has the same design.

Do Popen.write_nonblocking() and Popen.read_nonblocking() methods
belong to the second category? Should they raise BrokenPipeError?

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[issue1191964] add non-blocking read and write methods to subprocess.Popen


STINNER Victor added the comment:

 Do Popen.write_nonblocking() and Popen.read_nonblocking() methods
 belong to the second category? Should they raise BrokenPipeError?

IMO when you write directly to stdin and read from stdout/stderr of a
child process, your code should be written to handle BrokenPipeError.
You must decide how to handle them. Otherwise, you have to poll
manually the child process using proc.poll() which is less efficient.

If you forget to poll the process, your program may enter an unlimited
loop which only occur in some cases (bug in the child process which
exits before reading the whole stdin input).

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[issue13533] Would like Py_Initialize to play friendly with host app

2014-07-24 Thread Yukihiro Nakadaira


Yukihiro Nakadaira added the comment:

This problem easily happen when there is no python installation and there is 
standalone python application compiled with py2exe or cx_Freeze (e.g. 
Mercurial).  Such application have pythonXX.dll in its directory.  But its 
python library can not be loaded normally.  So an application, which loads 
pythonXX.dll to check if python is available and uses it if possible, is 
terminated when loading python.

Vim uses python as embedding scripting language.  Vim loads pythonXX.dll when 
:python command is used.  And this problem is reported occasionally.

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[issue5718] Problem compiling ffi part of build on AIX 5.3.

2014-07-24 Thread David Edelsohn


David Edelsohn added the comment:

ffi_closure_helper_DARWIN should have been declared extern in the assembly 
file. This has been fixed in more recent versions of libffi and imported into 
more recent versions of CPython, including 2.7.

.extern .ffi_closure_helper_DARWIN

Is it worth updating libffi.diff to insert the appropriate fix in 2.6 or not?

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[issue22018] Add a new signal.set_wakeup_socket() function

2014-07-24 Thread Antoine Pitrou


Antoine Pitrou added the comment:

Le 24/07/2014 06:00, STINNER Victor a écrit :

 STINNER Victor added the comment:

 I don't understand this. If you're ok with calling fileno() under Linux, why 
 not under Windows?

 I propose to add set_wakeup_socket() for all platforms.

That's not what I'm answering to, though. See option B above.

Again, what's wrong with passing the socket as a fileno?

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[issue5718] Problem compiling ffi part of build on AIX 5.3.

2014-07-24 Thread Stefan Krah


Stefan Krah added the comment:

Thanks, David. If this is fixed in 2.7 we can close the issue.

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[issue9770] curses.ascii.isblank() function is broken. It confuses backspace (BS 0x08) with tab (0x09)

2014-07-24 Thread akira


akira added the comment:

I've made the title more explicit: curses.isblank function doesn't match
ctype.h - curses.ascii.isblank() function is broken. It confuses
backspace (BS 0x08) with tab (0x09)

If a core developer could review the open questions from the 
previous message msg221008 then I could prepare a proper patch for the 
issue.

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function is broken. It confuses backspace (BS 0x08) with tab (0x09)

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[issue21813] Enhance doc of os.stat_result


Zachary Ware added the comment:

The only comments you didn't address you were right not to (sorry for the noise 
about path_fd, I completely missed that it was just a link reference); what you 
committed looks fine to me.

Thanks for your work on this, it looks like a big improvement to me!

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[issue20055] On Windows NT 6 with administrator account, there are two failing tests on test_shutil.py


Changes by Zachary Ware zachary.w...@gmail.com:


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[issue22055] Incomplete sentence in asyncio BaseEventLoop doc