Re: if the else short form
>>> True == 1
True
>>> False == 0
True
>>> int(True)
1
>>> int(False)
0
>>> bool(1)
True
>>> bool(0)
False
But:
str(fill==True)+','
is simpler than:
("False,", "True,")[fill==True]
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python "why" questions
> > 1) Why do Python lists start with element [0], instead of element > > [1]? "Common sense" would seem to suggest that lists should start > > with [1]. Because Zero is the neutral element of addition operation. And indexes (and all adresses in computing) involve with addition much more than multiplication! That's too clear i think and that's silly to use One as first index of arrays/lists in a programming language! -- http://mail.python.org/mailman/listinfo/python-list
Re: easy question on parsing python: "is not None"
On Aug 9, 3:41 pm, "saeed.gnu" wrote: > "x is y" means "id(y) == id(y)" > "x is not y" means "id(x) != id(x)" > "x is not None" means "id(x) != id(None)" > > "x is not None" is a really silly statement!! because id(None) and id > of any constant object is not predictable! I don't know whay people > use "is" instead of "==". you should write "if x!=None" instead of "x > is not None" Although small objects are unique in the memory (with a unique id) and using "is" works ok, but that's not logical to compare id's when we actually want to compare values! -- http://mail.python.org/mailman/listinfo/python-list
Re: easy question on parsing python: "is not None"
"x is y" means "id(y) == id(y)" "x is not y" means "id(x) != id(x)" "x is not None" means "id(x) != id(None)" "x is not None" is a really silly statement!! because id(None) and id of any constant object is not predictable! I don't know whay people use "is" instead of "==". you should write "if x!=None" instead of "x is not None" -- http://mail.python.org/mailman/listinfo/python-list
Re: unicode issue
I recommend to use UTF-8 coding(specially in GNU/Linux) then write this in the second line: #-*- coding: latin-1 -*- -- http://mail.python.org/mailman/listinfo/python-list
