py_compile fails to read filenames from stdin

[ginggs]

BPO	45428
Nosy	@stefanor, @serhiy-storchaka, @miss-islington, @ginggs
PRs	bpo-45428: Strip trailing '\n' from filename #28848 [3.10] bpo-45428: Fix reading filenames from stdin in py_compile (GH-28848) #28971

^{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 2021-10-15.12:37:47.851>
created_at = <Date 2021-10-11.07:30:08.538>
labels = ['type-bug', 'library', '3.10', '3.11']
title = 'py_compile fails to read filenames from stdin'
updated_at = <Date 2021-10-15.12:37:47.850>
user = 'https://github.com/ginggs'

bugs.python.org fields:

activity = <Date 2021-10-15.12:37:47.850>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2021-10-15.12:37:47.851>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2021-10-11.07:30:08.538>
creator = 'ginggs'
dependencies = []
files = []
hgrepos = []
issue_num = 45428
keywords = ['patch']
message_count = 4.0
messages = ['403624', '403994', '404007', '404009']
nosy_count = 4.0
nosy_names = ['stefanor', 'serhiy.storchaka', 'miss-islington', 'ginggs']
pr_nums = ['28848', '28971']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45428'
versions = ['Python 3.10', 'Python 3.11']

[ginggs]

py_compile fails to read a list of filenames to be compiled from standard input. This is a regression in 3.10.

example

files-to-compile.txt is a text file containing hello.py and goodbye.py on separate lines. hello.py and goodbye.py must exist.

python3.10 -m py_compile - <files-to-compile.txt
[Errno 2] No such file or directory: 'hello.py\n'

python3.9 -m py_compile - <files-to-compile.txt

python3.9 produces no output, but a __pycache__ directory is created and contains the byte-code files.

[serhiy-storchaka]

New changeset 59a633d by Graham Inggs in branch 'main':
bpo-45428: Fix reading filenames from stdin in py_compile (GH-28848)
59a633d

[miss-islington]

New changeset 2b6eb81 by Miss Islington (bot) in branch '3.10':
bpo-45428: Fix reading filenames from stdin in py_compile (GH-28848)
2b6eb81

[serhiy-storchaka]

Thank you for your contribution Graham.