FileNotFound error raised by os.exec* doesn't contain filename

@taleinat

BPO	40507
Nosy	@taleinat, @russelldavis
PRs	gh-84687: Add filename to the error raised by os.exec* #19915

^{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 = None
created_at = <Date 2020-05-05.05:56:58.273>
labels = ['type-feature', 'library', '3.10']
title = "FileNotFound error raised by os.exec* doesn't contain filename"
updated_at = <Date 2020-10-18.09:16:10.645>
user = 'https://github.com/russelldavis'

bugs.python.org fields:

activity = <Date 2020-10-18.09:16:10.645>
actor = 'taleinat'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-05-05.05:56:58.273>
creator = 'russelldavis'
dependencies = []
files = []
hgrepos = []
issue_num = 40507
keywords = ['patch']
message_count = 3.0
messages = ['368106', '378835', '378857']
nosy_count = 2.0
nosy_names = ['taleinat', 'russelldavis']
pr_nums = ['19915']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue40507'
versions = ['Python 3.10']

To repro:

>>> import os, sys
>>> os.execv("nosuchfile", ["nosuchfile"])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
FileNotFoundError: [Errno 2] No such file or directory
>>> print(sys.last_value.filename)
None

I agree that having the error message include the executable name could be useful.

After further reading, especially the docs for OSError which describe the filename and filename2 attributes, I agree that setting .filename on the FileNotFoundError exception is the way to go.

gh-84687: Add filename to the error raised by os.exec* (GH-19915)

pythongh-84687: Add filename to the error raised by os.exec* (pythonG…

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FileNotFound error raised by os.exec* doesn't contain filename #84687

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FileNotFound error raised by os.exec* doesn't contain filename #84687

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russelldavis commented on May 5, 2020

taleinat commented on Oct 17, 2020

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taleinat commented on Oct 18, 2020

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