[Python-Dev] Possible context managers in stdlib

[Nick Coghlan]

Michael Chermside wrote:
> I agree with Barry. Not only should they be in the stdlib, but they
> should have very clear warnings in their docstrings and other documentation
> that state that they are ONLY safe to use in single-threaded programs.
> 
> This achieves two things: it makes them available to those who need
> them (not everyone uses threads!), and it rather forcefully makes the
> point that it's NOT usually a good idea to modify global state info in
> a context manager because doing so is not generally threadsafe.

Wouldn't they be able to actually emit a warning at run-time if they're used 
in a multi-threaded program? That would be even better motivation for 
including them, IMO.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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