New submission from Serhiy Storchaka:

When the builtins module was converted to Argument Clinic, round() was omitted 
because existing signature of round() wasn't supported with the inspect module. 
Now round() supports None as the value for the ndigits arguments, and this is 
the default value. round() now has the signature round(number, ndigits=None).

Proposed PR converts round() to Argument Clinic. This has two benefits:

1. inspect.signature() now works with round.

2. Faster parsing keyword arguments.

----------
components: Interpreter Core
messages: 298539
nosy: serhiy.storchaka
priority: normal
severity: normal
stage: patch review
status: open
title: Convert round() to Arument Clinic
type: enhancement
versions: Python 3.7

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue30950>
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