Re: DRY and class variables

) > return cls > > @with_metadata > class TableOne: ># foo >pass Overnight I have become a decorator fan. I can postpone the study of metaclasses. Thanks. e -- Egbert Bouwman - Keizersgracht 197 I

DRY and class variables

e subclass namespace. Any ideas ? e -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: Python IDE/text-editor

nobody mention Geany ? e -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: When the first line of a file tells something about the other lines

lines: > # ... Beautiful. And a nice suggestion to read the itertools docs. egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

When the first line of a file tells something about the other lines

ne = file_line.strip() # now do something with stripped_line f.close() egbert -- Egbert Bouwman Keizersgracht 197-II 1016 DS Amsterdam Tel 0(031)20 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: List-type attributes and name strings

d not use the hard coding of attr1 and attr2 like you did. And because of a blind spot for getattr() I modified __dict__. Thanks to you, Chris and Lie it will not happen again, I promise. egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 02

Re: List-type attributes and name strings

On Thu, Jul 01, 2010 at 04:02:49AM -0700, Chris Rebert wrote: > switch to getattr() as demonstrated above. > Thanks for opening my eyes, Chris. egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6

List-type attributes and name strings

estring].append(value) and for a dictionary: >>> self.__dict__[namestring][keystring]=value But I have the impression that I am cheating, because users should not operate on __dict__ directly. Is that true ? And are there better solutions ? egbert -- Egbert Bouwman - Keizersgracht 197 II

Re: Is there a standard name for this tree structure?

On Sun, Apr 04, 2010 at 12:10:02PM +, Steven D'Aprano wrote: > I can implement this tree using a flat dict: > > root = object() > data = {root: ['Mammal', 'Reptile'], What is the advantage, or thougth behind, using an instance of object as the root o

Re: from import and __init__.py

On Thu, Mar 25, 2010 at 12:43:13PM -0400, Terry Reedy wrote: > On 3/25/2010 6:16 AM, egbert wrote: > >When I do 'from some_package import some_module' > >the __init__.py of some_package will be run. > >However, there will not be anything like a package-module, &g

from import and __init__.py

When I do 'from some_package import some_module' the __init__.py of some_package will be run. However, there will not be anything like a package-module, and the effects of __init__.py seem all to be lost. Is that true ? Or can I still do something useful with __init__.py ? e -- Egbe

SQLite's default ON CONFLICT algorithm

at I should not use the ROLLBACK conflict algorithm in my sql. Instead I have to catch the IntegrityError and call the rollback method. Does that mean that I have to wrap all multi-command transactions in a try-except if I don't like the default ABORT choice ? e -- Egbert Bouwman - Keizersgra

Re: current week / weeks in year - best practice

On Sat, Aug 02, 2008 at 07:46:49PM -0700, Dennis Lee Bieber wrote: > > What is the meaning of ? e. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/m

Re: formatting list -> comma separated (slightly different)

nd Chris row = ["Anne","Bob","Chris"] txt = ", ".join(row) pos = txt.rfind(", ") new = "%s and %s" % (txt[0:pos], txt[pos+2:]) egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 ===

Re: Java or C++?

What is the role or position of C# in this context ? If I remember well, some people have said that C# is an improved C++ or Java. e -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http

Re: for-else

the else refers to an iterator_is_exhausted condition, whatever logical explanation you may offer. . for each_item in item_list: .do_something() . else: .do_else() My temporary solution will be to accompany this else with an appropriate comment: # exhausted e -- Egbert Bouwman - Keizersgracht 197 II - 10

Re: for-else

break) . exhausted - the loop ran to completion. The last two as suggested by Laurence Tratt in his Convergence. e -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/p

Re: Python 3.0 migration plans?

On Thu, Sep 27, 2007 at 09:17:30PM -0400, Steve Holden wrote: > So what we need is a poll on what the questions should be. I *love* c.l.py. I will switch as soon as Debian has all the tools for an easy conversion available, and Python 3000 has reached the default release status. e -- Egb

Re: is it possible to give an instance a value?

On Thu, Mar 08, 2007 at 01:22:25PM +1100, Steven D'Aprano wrote: > On Wed, 07 Mar 2007 16:02:05 +0100, egbert wrote: > > My impression is that you can do everything you want to > > by making your instance callable, and not using a but a(). > You can't do this: &g

Re: is it possible to give an instance a value?

s: %s" % type(a()) print "Now earning" , a(1234) + 500 print "Type of a() is: %s" % type(a()) print "string ? %s" % ["No","Yes"][isinstance(a(), basestring)] The output is: Living in Sidney Living in Canberra N

Re: Python does not play well with others

- the portable assembler. Solid, trusted, tunable ... > C++ - objects tacked onto C; but that didn't work so invent ... > Python - it just works. Same scripts run on every platform ... What about C# ? e -- Egbert Bouwman - Keizersgracht 197 II - 1016 D

Re: SPE refuses.

ll explore spe. Thanks. e. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: SPE refuses.

.py --debug' produces the same error: You need to install at least wxPython v2.5.4.1 to run SPE. Get it from http://www.python.org Well, I got it from the debian repositories. e. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 ==

SPE refuses.

According to apt-show-versions I have installed: python-wxgtk2.6 2.6.3.2.1.5 spe 0.8.2a+repack-1 However when I start SPE I get the message You need to install at least wxPython v2.5.4.1 to run SPE How do I tell SPE that I have the right wxPython ? e. -- Egbert Bouwman

Python as default Lexer in SciTE

Is it possible to set Python as the default language in SciTE? Not all my python scripts have the .py extension, only the to_be_imported ones. And I use SciTE only for Python. e. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991

Dispatcher experiment

improvements on my design. In a python shell you may test it with: import dip zoo = dip.Zoo() zoo.animals["fish"].send_food_wish() egbert #!/usr/bin/env python # dip.py := experiment with Patrick O'Brien's dispatcher import wx.py.dispatcher as disp class Ani

Re: invert or reverse a string... warning this is a rant

String reversal comes in handy when you do palindromes. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

set_focus_chain in pygtk and wxPython

In pygtk is available: set_focus_chain Does wxPython have something similar ? -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Questions about the event loop

): callback_helper() ... klas = Klas() func() gtk.main() egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo

Re: can anyone advise me

0 1 2 3 4 5 > 0 1 2 3 4 5 6 > 0 1 2 3 4 5 6 7 > 0 1 2 3 4 5 6 7 8 > 0 1 2 3 4 5 6 7 8 9 > In your nested loop you are printing an x followed by zero or more z's, but only after each x, including the first one, you switch to a new line. So the last digit on each line is an x, exc

Re: An isalpha() that accepts underscores as well

nt t.timeit() # 1.36 t = Timer("pat.search(token)", "from __main__ import token, pat") print t.timeit() # 1.18 t = Timer("token.isalpha()", "from __main__ import token") print t.timeit() # 0.28 #egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 D

An isalpha() that accepts underscores as well

s is about ten times slower than isalpha() sec. Any suggestions ? Thanks. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Pythonpath and gnome panel

My pygtk gui can not be started from a gnome panel, because, apparently, the panel doesn't know about my modified PYTHONPATH. So how can I instruct the panel ? -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 62

Re: checking if a string contains a number

On Tue, Dec 20, 2005 at 07:16:46PM +0530, Suresh Jeevanandam wrote: > s1 = '12e3' > s2 = 'junk' > Is there any other function which would return True for s1 and False > for s2. > isinstance(12e3, (int, float)) -- Egbert Bouwman - Keizer

Re: which feature of python do you like most?

python is almost pseudocode, so much so that you don't need pseudocode anymore. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: PyFLTK - an underrated gem for GUI projects

PyFLTK is not a debian package - yet. Is nobody interested, or is there a more specific reason ? -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python

Opaque documentation

the screen that the window is displayed on. The screen on the second line, before the period, is in italics, if that helps. I like these texts. Prose should not disclose its secrets at once. If you have other examples, please let us know. -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Ams

PyGTK color blackout

Without success I try to understand the color mechanism in PyGTK. It's about the classes Color an Colormap, and their methods and related functions and other paraphernalia. If anyone knows about a tutorial-like systematic description, I will be very grateful. -- Egbert Bouwman - Keizersg

Hello gnome-terminal

er in a panel, a new gnome-terminal window is opened for output only, and PYTHONPATH is an unknown entity. How can I open a terminal over whose environment and configuration I have more control ? -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Ams

Re: python certification

d check if we were talking about the same language. However I must apologize. It didn't cover Pyhton. This is an improved version: pc=re.compile(r'\bph?(ph)*[iye]+h?(th?)+o?n+e?\b',re.I) As you see it covers pitn, and also spellings like pythonne, to accomodate the francophones. -- Egbe

Re: map/filter/reduce/lambda opinions and background unscientific mini-survey

entioned yet as a candidate for limbo, but the same question goes for: zip(sequence1,sequence2) -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list

Re: Controlling assignation

elf): self.var=0 def __call__(self,val=None): self.var=val a = A() a(5) print a.var # gives 5 egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listi

[OT] SQL-records and OOP

gle has lots to offer, but I must be looking in the wrong direction. egbert -- Egbert Bouwman - Keizersgracht 197 II - 1016 DS Amsterdam - 020 6257991 -- http://mail.python.org/mailman/listinfo/python-list