[issue16651] Find out what stdlib modules lack a pure Python implementation

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

> So expat doesn't count as that literally wraps the expat library.

XML parser can be implemented in pure Python. There are a lot of XML parsers 
implemented in different programming languages.

> Random
> also requires accessing the system randomization libraries to work
> properly so I don't think that is a candidate either.

No, random have C implemented some basic methods only for speed. It uses 
time() system function for initial seeding, but time() is accessible from pure 
Python too.

Some OS-specific modules (pwd, grp, spwd, resource, ossaudiodev, etc) can be 
implemented in pure Python on some platforms (using I/O and ioctl on special 
files in /etc, /dev or /proc).

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<http://bugs.python.org/issue16651>
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