concurrent.futures.__getattr__ raises the wrong AttributeError message

[graingert]

BPO	46522
Nosy	@asvetlov, @graingert, @Gobot1234
PRs	bpo-46522: fix concurrent.futures and io AttributeError messages #30887

^{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 2022-02-23.00:25:32.643>
created_at = <Date 2022-01-25.15:16:23.628>
labels = ['3.11']
title = 'concurrent.futures.__getattr__ raises the wrong AttributeError message'
updated_at = <Date 2022-04-07.19:57:29.561>
user = 'https://github.com/graingert'

bugs.python.org fields:

activity = <Date 2022-04-07.19:57:29.561>
actor = 'Gobot1234'
assignee = 'none'
closed = True
closed_date = <Date 2022-02-23.00:25:32.643>
closer = 'asvetlov'
components = []
creation = <Date 2022-01-25.15:16:23.628>
creator = 'graingert'
dependencies = []
files = []
hgrepos = []
issue_num = 46522
keywords = []
message_count = 4.0
messages = ['411611', '411615', '413759', '416940']
nosy_count = 3.0
nosy_names = ['asvetlov', 'graingert', 'Gobot1234']
pr_nums = ['30887']
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue46522'
versions = ['Python 3.11']

[graingert]

>>> import types
>>> types.ModuleType("concurrent.futures").missing_attribute
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'concurrent.futures' has no attribute 'missing_attribute'
>>> import concurrent.futures
>>> concurrent.futures.missing_attribute
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/graingert/miniconda3/lib/python3.9/concurrent/futures/__init__.py", line 53, in __getattr__
    raise AttributeError(f"module {__name__} has no attribute {name}")
AttributeError: module concurrent.futures has no attribute missing_attribute

[graingert]

this also applies to io and _pyio

[asvetlov]

New changeset 9b12b1b by Thomas Grainger in branch 'main':
bpo-46522: fix concurrent.futures and io AttributeError messages (GH-30887)
9b12b1b

[Gobot1234]

I was just looking through the git diff for this PR and found a bug in this https://github.com/python/cpython/pull/30887/files#diff-2828caacf5c85c7bd6023ea0e4a381cc5c65179a9822398534c5e9ad9ccbd90dR73. There's a missing f on the io __getattr__'s message