[issue24809] Add getprotobynumber to socket module

[Will Booth]

New submission from Will Booth:

Add an old method from netdb to python for a best-effort, centerized look up. 
For the function to work, /etc/protocols would also need to be present. If the 
protocol doesn't exist OSError is raised. 

Patch attached.

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components: Extension Modules
files: proto.diff
keywords: patch
messages: 248128
nosy: wbooth
priority: normal
severity: normal
status: open
title: Add getprotobynumber to socket module
type: enhancement
versions: Python 3.6
Added file: http://bugs.python.org/file40137/proto.diff

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[issue24809] Add getprotobynumber to socket module

[Will Booth]

Changes by Will Booth :


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versions: +Python 3.5 -Python 3.6

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[issue24809] Add getprotobynumber to socket module

[Will Booth]

Will Booth added the comment:

Allow users to translate protocol numbers from IPv4/IPv6 headers to a friendly 
human readable string.

Just filling a gap in the API. There might be a PyPI package out there similar 
to socket. However, it's complementary function,'getprotobyname', already exist 
here. getprotobynumber just flips getprotobyname around.

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