No longer use implicit convertion to int with loss

[serhiy-storchaka]

BPO	37999
Nosy	@mdickinson, @serhiy-storchaka, @hpjansson
PRs	bpo-37999: No longer use __int__ in implicit integer conversions. #15636 bpo-37999: Simplify the conversion code for %c, %d, %x, etc. #20437 bpo-37999: Fix outdated __int__ and nb_int references in comments #20449 gh-81163: Add support for extended color functions in ncurses 6.1 #17536

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2020-05-28.08:12:43.571>
created_at = <Date 2019-09-01.11:24:04.696>
labels = ['interpreter-core', 'type-feature', '3.10']
title = 'No longer use implicit convertion to int with loss'
updated_at = <Date 2020-07-01.19:01:56.267>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2020-07-01.19:01:56.267>
actor = 'hpj'
assignee = 'none'
closed = True
closed_date = <Date 2020-05-28.08:12:43.571>
closer = 'serhiy.storchaka'
components = ['Interpreter Core']
creation = <Date 2019-09-01.11:24:04.696>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 37999
keywords = ['patch']
message_count = 6.0
messages = ['350947', '370004', '370063', '370072', '370173', '372622']
nosy_count = 3.0
nosy_names = ['mark.dickinson', 'serhiy.storchaka', 'hpj']
pr_nums = ['15636', '20437', '20449', '17536']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue37999'
versions = ['Python 3.10']

Linked PRs

• gh-82180: Update math.factorial(float) doc for Python 3.10 #105385

[serhiy-storchaka]

Use only the __index__() method for implicit conversion to iteger, and not __int__().

This converts deprecation warnings added in bpo-36048 into TypeError.

[serhiy-storchaka]

New changeset 578c395 by Serhiy Storchaka in branch 'master':
bpo-37999: No longer use __int__ in implicit integer conversions. (GH-15636)
578c395

[mdickinson]

There are some comments in the Objects/longobject.c code that still refer to __int__, and could use an update.

For example:

cpython/Objects/longobject.c

Line 366 in 7da46b6

/* Get a C long int from an int object or any object that has an __int__

[mdickinson]

New changeset 20941de by Mark Dickinson in branch 'master':
bpo-37999: Fix outdated __int__ and nb_int references in comments (GH-20449)
20941de

[serhiy-storchaka]

I think it is all here. Thank you Mark for your review and for fixing outdated docs and comments.

[serhiy-storchaka]

New changeset e67f7db by Serhiy Storchaka in branch 'master':
bpo-37999: Simplify the conversion code for %c, %d, %x, etc. (GH-20437)
e67f7db