Mel wrote:
Jean-Michel Pichavant wrote:
Fellows,
I'd like to illutrate the fact that comparing strings using identity is,
most of the time, a bad idea. However I'm searching a short example of
code that yields 2 differents object for the same string content.
id('foo')
3082385472L
id('foo')
3082385472L
Anyone has that kind of code ?
Currently, CPython interns strings that look like identifiers. Any strings
that don't look like identifiers are on their own:
mwil...@tecumseth:~/sandbox/candlekit/stringlight-1$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
a = 'x(3)'
id(a)
3075373248L
c='x(3)'
id(c)
3075373856L
a==c
True
Mel.
thanks to all who replied.
It looks like there are some differences between python 2.5 & 2.6, I
tested all the possibilities I've been given in this thread and did not
always get the same result.
Anyway I found what I was looking for.
JM
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