[Python-Dev] Chaining seq1.pop().extend(seq2) does give wrong result
Jacek Trzmiel
sc0rp at hot.pl
Tue Mar 23 09:54:08 EST 2004
Hi,
$ python
Python 2.3.2 (#1, Dec 5 2003, 03:04:50)
[GCC 3.3.3 [FreeBSD] 20031106] on freebsd5
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> stack = [[1], [2]]
>>> fields = [3]
>>> out = stack.pop()
>>> out.extend(fields)
>>> print out
[2, 3]
>>>
>>> stack = [[1], [2]]
>>> fields = [3]
>>> out = stack.pop().extend(fields)
>>> print out
None
>>>
Shouldn't those two give identical result?
Best regards,
Jacek.
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