Convert one-element list to tuple in Python.

[kmrul]

Bug report

Bug description:

Input

tuple([1])

Expected output:

(1)

However, I got this:

(1,)

But for multiple element list convert to tuple is working fine.

CPython versions tested on:

3.9, 3.10, 3.11

Operating systems tested on:

Linux, macOS, Windows

[skirpichev]

Expected output:

Sorry, but why you expect this output?! One-element tuples covered in many places of CPython docs, including the tutorial:
https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences

[terryjreedy]

Except for an empty tuple (()), commas, not parentheses, define a tuple, with 1 element tuple requiring a trailing comma.