seeking deeper (language theory) reason behind Python design choice

Hi, I was wondering (and have asked on StackOverflow [1] in a more elaborate way) whether there is a deeper reason to not allow assignments in lambda expressions. I'm not criticising, I'm asking in order to know ;-) The surface-reason is the distinction between assignments and statements, but wh

Re: HTML templating tools

+1 for Jinja2. I love that shit On 2016-10-20 23:16, Adrian Petrescu wrote: On Thu, 20 Oct 2016 11:34:36 +0200, Tony van der Hoff wrote: Can anyone recommend a suitable replacement (preferably compatible with htmltmpl)? I don't think anything is going to be compatible with htmltmpl, but Jin

Re: numpy problem

> > On 23 mei 2016, at 14:19, Peter Otten <__pete...@web.de> wrote: > > li...@onemanifest.net wrote: > >> I've got a 2D array with values: >> >> values = np.array( >> [[ 20, 38, 4, 45, 65], >> [ 81, 44, 38, 57, 92], >> [ 92, 41, 16, 77, 44], >> [ 53, 62, 9, 75, 12], >> [ 58, 2, 60, 100,

numpy problem

Hi, I've got a nympy problem I can't get my head around. (numpy is new to me). I've got a 2D array with values: values = np.array( [[ 20, 38, 4, 45, 65], [ 81, 44, 38, 57, 92], [ 92, 41, 16, 77, 44], [ 53, 62, 9, 75, 12], [ 58, 2, 60, 100, 29], [ 63, 15, 48, 43, 71], [ 80, 97, 87,

Detecting an active exception

Hello everybody - my first post! And it may be the most monumentally stupid question ever asked, but I just can't see an answer after several hours experimenting, searching and reading. It's simply this - how can a function determine whether or not it's being called in handling of an exception

About getattr()

Hello, Since I can write the statement like: >>> print os.path.isdir.__doc__ Test whether a path is a directory Why do I still need the getattr() func as below? >>> print getattr(os.path,"isdir").__doc__ Test whether a path is a directory Thanks! -- http://mail.python.org/mailman/listinfo/pyt

Re: Does eval has the same features as Perl's?

Thank you.I'm just learning Python and want to make something clear to me.:) 2007/1/20, Steven D'Aprano <[EMAIL PROTECTED]>: > On Sat, 20 Jan 2007 17:30:24 +0800, Jm lists wrote: > > > Hello members, > > > > I want to know does the "eval" in pyt

Does eval has the same features as Perl's?

Hello members, I want to know does the "eval" in python have the same features as in Perl (capture errors)? For example,in perl I can wrote: $re = eval { 1 / 0 }; Though 1/0 is a fatal error but since it's in "eval" block so the perl interpreter doesn't get exit. Thanks again. -- http://mail.

Re: **argv can't work

Thanks for all the kind helps! 2007/1/20, Parthan SR <[EMAIL PROTECTED]>: > > > On 1/20/07, Jm lists <[EMAIL PROTECTED]> wrote: > > hello members, > > > > See my script piece below: > > > > def testB(shift,**argv): > > print "first

**argv can't work

hello members, See my script piece below: def testB(shift,**argv): print "first argument is %s" %shift print "all other arguments are:",argv testB('mails','Jen','[EMAIL PROTECTED]','Joe','[EMAIL PROTECTED]') It can't work at all.please help tell me the reasons.thanks. -- http://mail.py

Re: Why this script can work?

-e line 1, near "}else" Execution of -e aborted due to compilation errors. 2007/1/19, Diez B. Roggisch <[EMAIL PROTECTED]>: > Jm lists wrote: > > > Please help with this script: > > > > class ShortInputException(Exception): > >

Why this script can work?

Please help with this script: class ShortInputException(Exception): '''A user-defined exception class.''' def __init__(self,length,atleast): Exception.__init__(self) self.length=length self.atleast=atleast try: s=raw_input('E

Re: mean ans std dev of an array?

Simplest I see is to do it manually. If your array data is numeric compatible mean = sum(a)/len(a) as for the standard Deviation it depends on the nature of your data... check out http://en.wikipedia.org/wiki/Standard_deviation for info on that... but in all a for loop with a few calculati

python class instantiation

Got a question for you all... I noticed a behaviour in python class creation that is strange, to say the least. When creating a class with data members but no __init__ method. Python deals differently with data members that are muatable and immutables. Ex: class A(object): stringData = "W

SOAP/WSDL Introspection

I have the below code to get info about SOAP services at a wsdl url. It gets the in parameters OK but does not seem to get out/return parameters. Any idea why? Ben from SOAPpy import WSDL import sys wsdlfile = "http://www.xmethods.net/sd/2001/TemperatureService.wsdl"; server = WSDL.Proxy(wsdl

Another problem with 'Dive Into Python'

Am going through Chapter 9 - HTTP Web Services in dive into Python. It uses the following: data = urllib.urlopen('http://diveintomark.org/xml/atom.xml').read() The page no longer exists, can anyone recommend an alternative page to use? Ben -- http://mail.python.org/mailman/listinfo/python-l

Unicode question

I am using python 2.4 on Ubuntu dapper, I am working through Dive into Python. There are a couple of inconsictencies. Firstly sys.setdefaultencoding('iso−8859−1') does not work, I have to do sys.setdefaultencoding = 'iso−8859−1' secondly the following does not give a 'UnicodeError: ASCII encodin

Possible error in 'dive into Python' book, help!

I have been going through Dive into Python which up to now has been excellent. I am now working through Chapter 9, XML Processing. I am 9 pages in (p182) in the 'Parsing XML section. The following code is supposed to return the whole XML document (I have put ti at the end of this email): from x

Re: Exercises for dive into python

On Mon, 2006-07-24 at 23:16 +0200, Tal Einat wrote: > > snip... > > > > > > I recently gave a Python crash-course in my company, and ran > into the same > > problem. There are many good Python tutorials, manuals, > references etc., most >

Re: Exercises for dive into python

On Mon, 2006-07-24 at 16:39 +, Tal Einat wrote: > Ben Edwards (lists videonetwork.org> writes: > > > > > Have been working through Dive Into Python which is excellent. My only > > problem is that there are not exercises. I find exercises are a great > >

Exercises for dive into python

Have been working through Dive Into Python which is excellent. My only problem is that there are not exercises. I find exercises are a great way of helping stuff sink in and verifying my learning. Has anyone done such a thing? Ben -- http://mail.python.org/mailman/listinfo/python-list

Re: Writing my own typing monitor program for RSI sufferers...

Skip... So, so close  The problem with this implementation is that it doesn't monitor usb keyboards under linux at all as far as I can tellsince no keyboard entry will show up in /proc/interrupts with a usb keyboard.  I absolutely need the keyboard monitoring as well. Otherwise, your proj

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