Re: Unix-head needs to Windows-ize his Python script (II)

On 10/26/2010 2:08 AM, Lawrence D'Oliveiro wrote: > In message , MRAB wrote: > >> On 25/10/2010 02:19, Lawrence D'Oliveiro wrote: >> >>> In message, Dave >>> Angel wrote: >>> No. GUI programs are marked as win-app, so w stands for "Windows". Non GUI programs run in the console. >>> >>> Y

Re: Why "flat is better than nested"?

On Mon, 2010-10-25, bruno.desthuilli...@gmail.com wrote: > On 25 oct, 15:34, Alex Willmer wrote: >> On Oct 25, 11:07 am, kj wrote: >> >> > In "The Zen of Python", one of the "maxims" is "flat is better than >> > nested"?  Why?  Can anyone give me a concrete example that illustrates >> > this poin

Re: Unix-head needs to Windows-ize his Python script (II)

In message , Steve Holden wrote: > and, in fact, the console is only a GUI window in a windowed system. It > might be one of the console emulation windows that init starts under > linux, or even a terminal connected to a computer by a serila line, for > heavens sake. But now you’re no longer tal

Re: Unix-head needs to Windows-ize his Python script (II)

In message , MRAB wrote: > On 25/10/2010 02:19, Lawrence D'Oliveiro wrote: > >> In message, Dave >> Angel wrote: >> >>> No. GUI programs are marked as win-app, so w stands for "Windows". Non >>> GUI programs run in the console. >> >> You mean “GUI console”. So non-GUI apps get a GUI element whethe

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Bank Loan Online and Small Business Finance in the US A bank loan online generally refers to funding provided by a bank that can be accessed through an online application. Online applications usually only take a few minutes to complete and are analyzed by the bank within a couple of days. Bank loa

Re: python library for mail/news message headers & bodies?

On Mon, Oct 25, 2010 at 7:18 PM, Arthur Divot wrote: > Is there a python library equivalent to Perl's News::Article > (load a file containing a news or mail message into an > object, manipulate the headers and body, create a new empty > one, save one to a file)? The `email` package in the std lib

python library for mail/news message headers & bodies?

Is there a python library equivalent to Perl's News::Article (load a file containing a news or mail message into an object, manipulate the headers and body, create a new empty one, save one to a file)? Thanks! -- http://mail.python.org/mailman/listinfo/python-list

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PyCon 2011 Reminder: Call for Proposals, Posters and Tutorials - us.pycon.org === Well, it's October 25th! The leaves have turned and the deadline for submitting main-conference talk proposals expires in 7 days (November 1st, 2010)! We are currently acc

Re: downcasting problem

On 10/25/2010 12:56 PM, John Nagle wrote: On 10/25/2010 7:38 AM, Tim Chase wrote: While a dirty hack for which I'd tend to smack anybody who used it...you *can* assign to instance.__class__ That's an implementation detail of CPython. May not work in IronPython, Unladen Swallow, PyPy, or

Re: Inconsistent results from int(floatNumber)

On Oct 25, 4:25 pm, Terry Reedy wrote: > The binary float resulting from the conversion of .1 is slightly greater > than .1, so this increases i by slightly more than .1 > > >    z = i * 10.0 > > so z is increased be lightly more that 1 It should also be pointed out that Java in fact does the sam

Re: Inconsistent results from int(floatNumber)

On 10/25/2010 5:44 PM, gershar wrote: I had some problems with some Python projects that gave variable results that I could not track down. Eventually and reluctantly I converted them to Java. Later, when I had more time I tried to analyze what the Python code was doing and found something strang

Re: Inconsistent results from int(floatNumber)

On 2:59 PM, gershar wrote: I had some problems with some Python projects that gave variable results that I could not track down. Eventually and reluctantly I converted them to Java. Later, when I had more time I tried to analyze what the Python code was doing and found something strange. The foll

Re: Inconsistent results from int(floatNumber)

On Oct 25, 3:44 pm, gershar wrote: > It looks like a rounding problem but on the surface there is nothing > to round. I am aware that there are rounding limitations with floating > point arithmetic but the value passed to int() is always correct. No, it isn't: >>> for x in xrange(5): ... i +=

Inconsistent results from int(floatNumber)

I had some problems with some Python projects that gave variable results that I could not track down. Eventually and reluctantly I converted them to Java. Later, when I had more time I tried to analyze what the Python code was doing and found something strange. The following snippet illustrates the

Re: Why "flat is better than nested"?

Steve Holden writes: > And everyone taking the Zen too seriously should remember that it was > written by Tim Peters one night during the commercial breaks between > rounds of wrestling on television. So while it can give useful > guidance, it's nether prescriptive nor a bible ... Even to those

Re: downcasting problem

Nikola Skoric writes: > Hi everybody, > > I need to downcast an object, and I've read repeatedly that if you > need to downcast, you did something wrong in the design phase. So, > instead of asking how do you downcast in python, let me explain my > situation. > > I have a 2-pass parser. 1st pass

Re: Why "flat is better than nested"?

kj wrote: In Steve Holden writes: On Oct 25, 5:07 am, kj wrote: In "The Zen of Python", one of the "maxims" is "flat is better than nested"? Why? Can anyone give me a concrete example that illustrates this point? Two points on the practical side: most folk only remember a few levels

Re: Why "flat is better than nested"?

On 10/25/2010 3:11 PM, kj wrote: > In Steve Holden > writes: > >> On 10/25/2010 10:47 AM, rantingrick wrote: >>> On Oct 25, 5:07 am, kj wrote: In "The Zen of Python", one of the "maxims" is "flat is better than nested"? Why? Can anyone give me a concrete example that illustrates >>

Re: Unicode questions

On 10/25/2010 2:36 PM, Terry Reedy wrote: > On 10/25/2010 2:33 AM, Steve Holden wrote: >> On 10/25/2010 1:42 AM, Lawrence D'Oliveiro wrote: >>> In message, Petite >>> Abeille wrote: >>> Characters vs. Bytes >>> >>> And why do certain people insist on referring to bytes as “octets”? >> >> Becau

Re: Why "flat is better than nested"?

On 10/25/2010 3:11 PM, kj wrote: Well, it's pretty *enshrined*, wouldn't you say? No. > After all, it is part of the standard distribution, So is 'import antigravity' > has an easy-to-remember invocation, etc. *Someone* must have taken it seriously enough to go through all this bother.

Re: ftplib - Did the whole file get sent?

On 10/22/2010 10:03 PM, Sean DiZazzo wrote: Hi, I have some scripts that send files via ftplib to a client's ftp site. The scripts have generally worked great for a few years. Recently, the client complained that only part of an important file made it to their server. My boss got this complai

Re: downcasting problem

> Hi everybody, > > I need to downcast an object, and I've read repeatedly that if you > need to downcast, you did something wrong in the design phase. So, > instead of asking how do you downcast in python, let me explain my > situation. > > I have a 2-pass parser. 1st pass ends up with a bunch o

Re: Why "flat is better than nested"?

In Steve Holden writes: >On 10/25/2010 10:47 AM, rantingrick wrote: >> On Oct 25, 5:07 am, kj wrote: >>> In "The Zen of Python", one of the "maxims" is "flat is better than >>> nested"? Why? Can anyone give me a concrete example that illustrates >>> this point? >> >> Simple. This commandmen

Re: Unicode questions

On 10/25/2010 2:33 AM, Steve Holden wrote: On 10/25/2010 1:42 AM, Lawrence D'Oliveiro wrote: In message, Petite Abeille wrote: Characters vs. Bytes And why do certain people insist on referring to bytes as “octets”? Because back in the old days bytes were of varying sizes on different arch

Re: How to optimize and monitor garbage collection?

On 10/24/2010 8:39 PM, kj wrote: I'm designing a system that will be very memory hungry unless it is "garbage-collected" very aggressively. In the past I have had disappointing results with the gc module: I noticed practically no difference in memory usage with and without it. It is possible,

Re: Unicode questions

On 2010-10-25, Lawrence D'Oliveiro wrote: > In message , Petite > Abeille wrote: >> Characters vs. Bytes > And why do certain people insist on referring to bytes as ???octets One common reason is that there have been machines on which "bytes" were not 8 bits. In particular, the usage of "b

Re: downcasting problem

On 10/25/2010 7:38 AM, Tim Chase wrote: While a dirty hack for which I'd tend to smack anybody who used it...you *can* assign to instance.__class__ That's an implementation detail of CPython. May not work in IronPython, Unladen Swallow, PyPy, or Shed Skin. (An implementation with a JIT h

Re: Has Next in Python Iterators

On Oct 25, 4:33 am, Kelson Zawack wrote: > The example I have in mind is list like [2,2,2,2,2,2,1,3,3,3,3] where > you want to loop until you see not a 2 and then you want to loop until > you see not a 3.  In this situation you cannot use a for loop as > follows: > > foo_list_iter = iter([2,2,2,2,

Re: How do I chain methods?

On 10/24/2010 11:42 PM, Chris Rebert wrote: On Sun, Oct 24, 2010 at 4:11 PM, James Mills wrote: On Mon, Oct 25, 2010 at 9:02 AM, Chris Rebert wrote: Method chaining is usually* not idiomatic in Python. I don't agree but anyway... I've just not seen it commonly used amongst python programme

Re: Has Next in Python Iterators

Kelson Zawack writes: > The example I have in mind is list like [2,2,2,2,2,2,1,3,3,3,3] where > you want to loop until you see not a 2 and then you want to loop until > you see not a 3. "loop until you see not a 2" - you mean yield 2s as long as there are 2s to be consumed? "loop until you see

Re: [OFF] sed equivalent of something easy in python

>> using python. The pattern is that the first line is deleted, >> then 2 lines are kept, 3 lines are deleted, 2 lines are kept, >> 3 lines are deleted, etc, etc. > > If you have GNU sed, you can use > >sed -n '2~5{N;p}' > > which makes use of the GNU "~" extension. If you need a more > portabl

Re: [OFF] sed equivalent of something easy in python

On 10/25/2010 11:25 AM, Daniel Fetchinson wrote: using python. The pattern is that the first line is deleted, then 2 lines are kept, 3 lines are deleted, 2 lines are kept, 3 lines are deleted, etc, etc. If you have GNU sed, you can use sed -n '2~5{N;p}' which makes use of the GNU "~" extens

[OFF] sed equivalent of something easy in python

This question is really about sed not python, hence it's totally off. But since lots of unix heads are frequenting this list I thought I'd try my luck nevertheless. If I have a file with content 1 2 3 4 5 6 7 8 ... i.e. each line contains simply its line number, then it's quite easy to conve

Re: j2py - overloading __init__

On Oct 25, 12:57 pm, Brendan wrote: > I am posting here in the hopes the author of java2python will see it. > Does j2py handle overloading of the __init__ constructor?  For me it > is calling __init__ and not calling the decorator overloaded __init__0. Never mind. Moronic type mistake. -- http:/

j2py - overloading __init__

I am posting here in the hopes the author of java2python will see it. Does j2py handle overloading of the __init__ constructor? For me it is calling __init__ and not calling the decorator overloaded __init__0. -- http://mail.python.org/mailman/listinfo/python-list

Re: downcasting problem

Dana Mon, 25 Oct 2010 09:38:42 -0500, Tim Chase kaze: > While a dirty hack for which I'd tend to smack anybody who used > it...you *can* assign to instance.__class__ Wow! Python never stops to amaze me. > If it breaks you get to keep all the parts :) Yes, I can see great potential for shit hi

Re: Question on multiple python environments in Apache

On 10/25/2010 10:50 AM, Jeffrey Gaynor wrote: > Because that is a mess to manage, involving hacking the Apache source > and multiple recompiles (this will have to run under CentOS). Using > Python should be easy and not entail multiple compiles of other > people's software. My main question boils d

Re: Why "flat is better than nested"?

In rantingrick writes: >On Oct 25, 5:07=A0am, kj wrote: >> In "The Zen of Python", one of the "maxims" is "flat is better than >> nested"? =A0Why? =A0Can anyone give me a concrete example that illustrate= >s >> this point? >Simple. This commandment (endowed by the anointed one, GvR) is >direc

Re: Why "flat is better than nested"?

On 10/25/2010 10:47 AM, rantingrick wrote: > On Oct 25, 5:07 am, kj wrote: >> In "The Zen of Python", one of the "maxims" is "flat is better than >> nested"? Why? Can anyone give me a concrete example that illustrates >> this point? > > Simple. This commandment (endowed by the anointed one, GvR

Re: Descriptors and decorators

On 25 October 2010 15:20, bruno.desthuilli...@gmail.com wrote: > So, your decorator is applied to a function, and wraps it into a > Decorator object. Or more exactly, the function is defined, then the > Decorator class is called so a new Decorator object is instanciated > with the function as argu

Re: nntplib and ssl

On 10/25/2010 7:26 AM, Andrew wrote: > On Fri, 22 Oct 2010 23:23:31 +0200, Antoine Pitrou wrote: > >> On Fri, 22 Oct 2010 17:02:07 -0400 >> Andrew wrote: >>> >>> Python's nntplib seems ideal for my purposes, but as far as I can see it >>> doesn't support nntps connections. If I understand nntp co

Re: downcasting problem

While a dirty hack for which I'd tend to smack anybody who used it...you *can* assign to instance.__class__ >>> class A: ... def __init__(self, name): ... self.name = name ... def __str__(self): return self.name ... >>> class B(A): ... def foo(self): print "I'm B: %r" % s

Re: Question on multiple python environments in Apache

Because that is a mess to manage, involving hacking the Apache source and multiple recompiles (this will have to run under CentOS). Using Python should be easy and not entail multiple compiles of other people's software. My main question boils down to the best way to get mutltiples interpreters

Re: Why "flat is better than nested"?

On Oct 25, 5:07 am, kj wrote: > In "The Zen of Python", one of the "maxims" is "flat is better than > nested"?  Why?  Can anyone give me a concrete example that illustrates > this point? Simple. This commandment (endowed by the anointed one, GvR) is directed directly at lisp and those filthy lisp

Re: Why "flat is better than nested"?

On Oct 25, 2:56 pm, Robin Becker wrote: > On 25/10/2010 11:07, kj wrote: > > > In "The Zen of Python", one of the "maxims" is "flat is better than > > nested"?  Why?  Can anyone give me a concrete example that illustrates > > this point? > > ... > I believe that the following illustrates the n

Re: Has Next in Python Iterators

Kelson Zawack writes: > Iterators however are a different beast, they are returned by the > thing they are iterating over and thus any special cases can be > covered by writing a specific implementation for the iterable in > question. This sort of functionality is possible to implement, > becaus

Re: Help Need in running a Python Program from terminal

On Oct 25, 2010, at 7:16 AM, Raji wrote: > Greetings ! > > I want to analyse and debug a python program ( its a astrology application > ) > > Downloaded the code from here http://openastro.org/?Download > for Ubuntu > > When i executed the main file python o

downcasting problem

Hi everybody, I need to downcast an object, and I've read repeatedly that if you need to downcast, you did something wrong in the design phase. So, instead of asking how do you downcast in python, let me explain my situation. I have a 2-pass parser. 1st pass ends up with a bunch of superclass obj

Re: Why "flat is better than nested"?

On 25/10/2010 11:07, kj wrote: In "The Zen of Python", one of the "maxims" is "flat is better than nested"? Why? Can anyone give me a concrete example that illustrates this point? ... I believe that the following illustrates the nesting issue (I think this is from somewhere in Chomsky)

Re: Why "flat is better than nested"?

On 25 oct, 15:34, Alex Willmer wrote: > On Oct 25, 11:07 am, kj wrote: > > > In "The Zen of Python", one of the "maxims" is "flat is better than > > nested"?  Why?  Can anyone give me a concrete example that illustrates > > this point? > > I take this as a reference to the layout of the Python st

Re: Has Next in Python Iterators

Kelson Zawack writes: > The example I have in mind is list like [2,2,2,2,2,2,1,3,3,3,3] > where you want to loop until you see not a 2 and then you want to > loop until you see not a 3. In this situation you cannot use a for > loop as follows: ... > because it will eat the 1 and not allow the sec

Re: Why "flat is better than nested"?

On Oct 25, 11:07 am, kj wrote: > In "The Zen of Python", one of the "maxims" is "flat is better than > nested"?  Why?  Can anyone give me a concrete example that illustrates > this point? I take this as a reference to the layout of the Python standard library and other packages i.e. it's better t

Re: Descriptors and decorators

On 25 oct, 14:15, Joost Molenaar wrote: > WebOb contains this little nugget of code that allows you to define a > decorator that works on both methods and functions: > > class Decorator(object): >     def __init__(self, func): >         self.func = func >     def __get__(self, object, type=None):

Re: ftplib - Did the whole file get sent?

On Oct 23, 2:03 am, Sean DiZazzo wrote: I follow every ftp put (STOR) with a dir command. Then if the recipient claims that they never got it (or did not get all of it), I have evidence that they did and that their byte count is the same as mine. This does not entirely guarantee that the ftp wa

Descriptors and decorators

WebOb contains this little nugget of code that allows you to define a decorator that works on both methods and functions: class Decorator(object): def __init__(self, func): self.func = func def __get__(self, object, type=None): if type is None: return self

Re: embarrassing class question

On Oct 22, 2:21 pm, Peter Pearson wrote: > On Fri, 22 Oct 2010 07:49:39 -0700 (PDT), Brendan wrote: > > [snip] > > > > > > > x.py > > class X(object): > >     pass > > > y.py > > import x > > class Y(x.X): > >     pass > > > z.py > > import x > > import y > > class ZX(x.X): > >     pass > > class

Re: ftplib - Did the whole file get sent?

On Oct 23, 1:03 pm, Sean DiZazzo wrote: > On Oct 22, 10:48 pm, Steven D'Aprano > cybersource.com.au> wrote: > > On Fri, 22 Oct 2010 22:03:38 -0700, Sean DiZazzo wrote: > > > How can I assure him (and the client) that the transfer completed > > > successfully like my log shows? > > > "It has worke

Re: nntplib and ssl

On Fri, 22 Oct 2010 23:23:31 +0200, Antoine Pitrou wrote: > On Fri, 22 Oct 2010 17:02:07 -0400 > Andrew wrote: >> >> Python's nntplib seems ideal for my purposes, but as far as I can see it >> doesn't support nntps connections. If I understand nntp correctly (I may >> not) that means, among othe

Re: How do I chain methods?

Hi Steve and others, On 2010-10-25 06:08, Steve Holden wrote: > On 10/24/2010 11:42 PM, Chris Rebert wrote: >> On Sun, Oct 24, 2010 at 4:11 PM, James Mills >> wrote: >>> I don't agree but anyway... I've just not seen it commonly used >>> amongst python programmers. >> >> If Python wanted to encou

Help Need in running a Python Program from terminal

Greetings ! I want to analyse and debug a python program ( its a astrology application ) Downloaded the code from here http://openastro.org/?Download for Ubuntu When i executed the main file python openastro.py from terminal i stopped with the following error

Re: Has Next in Python Iterators

Kelson Zawack, 25.10.2010 12:33: The example I have in mind is list like [2,2,2,2,2,2,1,3,3,3,3] where you want to loop until you see not a 2 and then you want to loop until you see not a 3. In this situation you cannot use a for loop as follows: foo_list_iter = iter([2,2,2,2,2,2,1,3,3,3,3]) fo

Re: init inside def

On 25 oct, 12:05, targetsmart wrote: > Hi, > today I just came across a python code snippet where __init__ was > defined inside a function.. > I am not able to understand the reason why > > The code snippet was similar like > > def func1(a,b): >   def __init__(): >     func2(a,b) >   def func2(a,b

Re: Has Next in Python Iterators

The example I have in mind is list like [2,2,2,2,2,2,1,3,3,3,3] where you want to loop until you see not a 2 and then you want to loop until you see not a 3. In this situation you cannot use a for loop as follows: foo_list_iter = iter([2,2,2,2,2,2,1,3,3,3,3]) for foo_item in foo_list_iter: if

Why "flat is better than nested"?

In "The Zen of Python", one of the "maxims" is "flat is better than nested"? Why? Can anyone give me a concrete example that illustrates this point? TIA! ~kj PS: My question should not be construed as a defense for "nested". I have no particular preference for either flat or nested; it all d

init inside def

Hi, today I just came across a python code snippet where __init__ was defined inside a function.. I am not able to understand the reason why The code snippet was similar like def func1(a,b): def __init__(): func2(a,b) def func2(a,b): if a == b: return True else: return

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Re: Question on multiple python environments in Apache

Why wouldn't you use multiple apache instances? On Fri, Oct 22, 2010 at 11:28 PM, Jeffrey Gaynor wrote: > I have several different versions of a web app that run under Apache. The > issue is that I need to have several different configurations available > under several environments (such as Djang

Re: Exception Handling in Python 3

On 10/25/2010 2:57 AM, Martin v. Loewis wrote: > Am 24.10.2010 23:48, schrieb Steve Holden: >> On 10/24/2010 4:44 PM, John Nagle wrote: >>> Are exception semantics changing in a way which would affect >>> that? >> >> No, I don't believe so. I simply felt that the traceback gives too >> much info

Re: Exception Handling in Python 3

Am 24.10.2010 23:48, schrieb Steve Holden: > On 10/24/2010 4:44 PM, John Nagle wrote: >> Are exception semantics changing in a way which would affect that? > > No, I don't believe so. I simply felt that the traceback gives too much > information in the case where an exception is specifically being