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Memory leak in code object lines and positions iterator #92955

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kumaraditya303 opened this issue May 19, 2022 · 0 comments · Fixed by #92956
Closed

Memory leak in code object lines and positions iterator #92955

kumaraditya303 opened this issue May 19, 2022 · 0 comments · Fixed by #92956
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3.12 interpreter-core

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@kumaraditya303
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@kumaraditya303 kumaraditya303 commented May 19, 2022

The static types LineIterator and PositionsIterator in codeobject.c are not finalized at exit leading to memory leak.

Reproducer:

def func() -> None:
    pass

print(type(func.__code__.co_positions()).mro())
print(type(func.__code__.co_lines()).mro())

Memory leak:

[<class 'positions_iterator'>, <class 'object'>]
[<class 'line_iterator'>, <class 'object'>]
[138 refs, 54 blocks]
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GH-92955: fix memory leak in code object lines and positions iterators kumaraditya303/cpython
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