[issue44697] Memory leak when asyncio.open_connection raise

[Artem]

Artem <doomedseer at GMail.com> added the comment:

Checked on 3.9.6 - still leaking.

Strange stuff, but if I write 

except OSError as e:
    del self

instead of 

except OSError as e:
    pass

leak is disappearing.

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versions: +Python 3.9 -Python 3.6

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<https://bugs.python.org/issue44697>
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