On 20/05/2019 23.27, Antoine Pitrou wrote:
> NNTP is still quite used (often through GMane, but probably not only) so
> I'd question the removal of nntplib.

Is NNTP support important enough to keep the module in the standard library?

> cgitb used to be used by some Web frameworks in order to format
> exceptions.  Perhaps one should check if that's still the case.

A search on github did not reveal any relevant use of cgitb besides tons of 
copies of test_cgitb and an optional debugging middleware in Paste. I checked 
Django, Plone, CherryPy, flask, and bottle. None uses cgitb.

> If the wave module depends on the audioop module, and if the wave
> module is kept in the stdlib, then the audioop module can't be removed.

No, it can be removed. I explained the situation in the "wave" section of the 
PEP.

> Removing the crypt module would remove support for system-standard
> password files.  I don't understand the rationale.

Applications *must* not access system-standard password files directly. On any 
sanely and securely configured systems, application cannot even access system 
password files like /etc/shadow. Access restrictions and system security 
policies will prevent read access. Also applications cannot assume that users 
are present in any user file. They may come from LDAP, SSSD, ActiveDirectory, 
or other sources.

The correct way to interact with system users is to use the proper APIs, that 
are NSS (name service switch) and PAM (pluggable authentication modules). NSS 
looks up and enumerate users and groups. PAM performs password validation and 
much, much, much more. The pwd and grp modules use the correct APIs to interact 
with NSS. If you need to check or change passwords, you must go through PAM.

Christian
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