New submission from Gustavo J. A. M. Carneiro:
If you try the attached program, you will find that for every iteration the
uuid.uuid4() call generates objects that contain reference cycles and need the
help of the garbage collector. This is not nice. If I make the ctypes module
not able to
R. David Murray added the comment:
I'm not sure that this is a real problem, but have you identified what the
cycle is?
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nosy: +r.david.murray
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue20519
Gustavo J. A. M. Carneiro added the comment:
Well, this isn't a big problem, but I have an application that needs to run
with the GC disabled, since it causes pauses of a couple of seconds each time a
full collection runs (we have a few million objects allocated). I will run the
GC only once
Gustavo J. A. M. Carneiro added the comment:
I have narrowed it down to one line of code:
ctypes.create_string_buffer(16)
That is enough to create 7 objects that have reference cycles.
[class 'ctypes.c_char_Array_16', {'__module__': 'ctypes', '__doc__': None,
'__weakref__': attribute
