I thought a string was stored as a unique object, so why isn't this evidenced
by the code below ?
Python 2.5.2 (r252:60911, Feb 22 2008, 07:57:53)
[GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin
>>> [light is 'green' for light in 'green', 'red']
[True, False]
>>> color = 'green'
>>> [light is 'green' for light in 'green', 'red']
[False, False]
>>> color = 1
>>> [light is 'green' for light in 'green', 'red']
[True, False]
whereas:
>>> [x is 1 for x in 1, 2]
[True, False]
whether the value 1 is assigned to some other variable or not... the id of 1
doesn't vary -- just what is the rationale behind that?
I know I could use the == predicate instead, but just how many different greens
(with different ids) can there be, and how do I know which one is under focus
at a given time?
--
Jym Feat ~ Paris FR 75018
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