[Python-Dev] Patch 595601

[Skip Montanaro]

    >> Would it be reasonable to raise an error or warning if a file's
    >> close() method was called when the reference count was greater than
    >> 1?

    Barry> There could be lots of reasons why a file's refcount was greater
    Barry> than 1 without threads entering into the picture.

Yeah, but they probably all represent some sort of bug.  How about a warning
which is disabled by default but which the programmer can enable?

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