Le 09/06/2010 08:54, Raymond Hettinger a écrit :
next(ifilter(None, d), False)
Good, this is rather short and does the job !...
I should try to use more often this itertools module.
Thanks
Daniel
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Le 09/06/2010 00:24, Ian Kelly a écrit :
Because it was designed as a replacement for "reduce(lambda x, y: x or
y, iterable)". The problem arises when the iterable is empty. What
false value should be returned? If the iterable is a sequence of
bools, then None doesn't fit. If the iterable is
Hi,
I find very useful in python the ability to use a list or number x like
a boolean :
if x :
do something
So I don't understand why was introduced the any( ) function defined as :
def any(iterable):
for element in iterable:
if element:
return True
re
Le 08/06/2010 10:03, ch1zra a écrit :
import os, time, re, pyodbc, Image, sys
from datetime import datetime, date, time
from reportlab.lib.pagesizes import A4
from reportlab.lib.units import cm
from reportlab.pdfgen import canvas
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttf
you can also use :
>>> class A(object):
def __init__(self, **args):
self.__dict__.update(args)
>>> a=A(source='test', length=2)
>>> a.source
'test'
but this is to be used carefully because mispelling your args somewhere
in your program will not raise any error :
>>> A(
