[Python-bugs-list] [ python-Bugs-678352 ] list.append memory leak ?

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Bugs item #678352, was opened at 2003-01-31 15:18
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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=678352&group_id=5470

Category: Python Interpreter Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: thanos  vassilakis (thanos)
Assigned to: Nobody/Anonymous (nobody)
Summary: list.append memory leak ?

Initial Comment:
# this SEEMS to leak
l = xrange(10000)
while 1:
        a=[]
        map(a.append, l)
        del a

# this does not 
while 1:
       a=range(10000)
       del a



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>Comment By: thanos  vassilakis (thanos)
Date: 2003-01-31 17:47

Message:
Logged In: YES 
user_id=91277

HP UX B.11.00
BSD 4.7
python 2.2

Its possible it is not a bug that is why I used the word SEEMS
but why does the second code fragment behave? 


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Comment By: Tim Peters (tim_one)
Date: 2003-01-31 16:00

Message:
Logged In: YES 
user_id=31435

Please identify the Python version and OS+compiler+C 
library in use.  The process size remains steady for me under 
current CVS Python on Win2K w/ MSVC6.

A true leak is possible but unlikely.  More likely is that your 
platform C malloc()/free() decide not to return memory to the 
OS.  If so, that's outside of Python's control

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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=678352&group_id=5470