[Python-Dev] Use function names instead of functions for os.supports_dir_fd?

Larry Hastings larry at hastings.org
Wed Jul 18 01:13:33 CEST 2012

On 07/17/2012 10:34 AM, Victor Stinner wrote:
> Python 3.3 introduced os.supports_dir_fd to check if some os functions
> do accept a file descriptor instead of a path. The problem is that
> os.supports_dir_fd is a list of functions, not a list of function
> names. If os functions are monkey patched, you cannot test anymore if
> a function supports file descriptor.

If you're monkey-patching the function, you can monkey-patch 
os.supports_dir_fd too.

> Monkey patching is a common practice in Python. test_os.py replaces
> os.exec*() functions temporary for example.

For testing, yes.  It's not recommended for production code.

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