[issue815646] thread unsafe file objects cause crash

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Another approach would be to add a dedicated lock for each PyFileObject.
This sounds a bit bad performance-wise but after all the GIL itself is a
lock, and we release and re-acquire it on each file operation, so why not?

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<http://bugs.python.org/issue815646>
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