New submission from Jens Holzkämper <jens@holzkaemper.berlin>:
https://docs.python.org/3/library/os.html#os.getgrouplist states „Return list
of group ids that user belongs to. If group is not in the list, it is included;
typically, group is specified as the group ID field from the password record
for user.“, but the function is at least on Linux a wrapper for getgrouplist
from the C standard library, which lists only the membership in groups in the
group-database. Users can be members of groups without it being declared in the
group database, this is often the case with the default group of the user which
is only declared in the passwd database.
e.g.
/etc/passwd: woodfighter:x:1000:1000:,,,:/home/woodfighter:/bin/bash
/etc/group: woodfighter:x:1000:
os.getgrouplist("woodfighter",65534) then doesn't contain group id 1000.
The documentation tries to steer a developer in the right direction with the
second sentence but fails to state, that the list will be possibly incomplete
otherwise. I would add something like „, because that group ID will otherwise
be potentially omitted.“ before the last period.
----------
assignee: docs@python
components: Documentation
messages: 367187
nosy: docs@python, woodfighter
priority: normal
severity: normal
status: open
title: documentation for os.getgrouplist potentially misleading
type: enhancement
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40376>
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