STINNER Victor added the comment:
> I don't like _dealloc_warn() at all. It looks as a dirty hack and doesn't
> work with custom file-like objects.
I tried to support emitting a ResourceWarning when the close() method is
overriden in a subclass, but then I saw that io doesn't support this use case
neither:
---
import io
import os
class MyFile(io.FileIO):
def close(self):
os.close(self.fileno())
f = MyFile('/etc/issue')
f = None
---
=> no warning
Ok, now I have to read again Martin's patches since I didn't understand them at
the first read :-)
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<http://bugs.python.org/issue19829>
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