test_venv fails with HOME=/ on AMD64 FreeBSD Non-Debug 3.x

[vstinner]

BPO	40808
Nosy	@vstinner, @ned-deily
Superseder	bpo-38488: Update bundled pip to 20.1.1

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

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2020-06-15.19:33:33.255>
created_at = <Date 2020-05-28.13:56:01.962>
labels = ['tests', '3.10']
title = 'test_venv fails with HOME=/ on AMD64 FreeBSD Non-Debug 3.x'
updated_at = <Date 2020-06-15.19:33:33.253>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2020-06-15.19:33:33.253>
actor = 'ned.deily'
assignee = 'none'
closed = True
closed_date = <Date 2020-06-15.19:33:33.255>
closer = 'ned.deily'
components = ['Tests']
creation = <Date 2020-05-28.13:56:01.962>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 40808
keywords = []
message_count = 2.0
messages = ['370209', '371590']
nosy_count = 2.0
nosy_names = ['vstinner', 'ned.deily']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '38488'
type = None
url = 'https://bugs.python.org/issue40808'
versions = ['Python 3.10']

[vstinner]

test_venv fails on AMD64 FreeBSD Non-Debug 3.x since this build:
https://buildbot.python.org/all/#/builders/214/builds/808

This build has 3 changes. IMHO the regression comes from the commit feb0846: "Upgrade bundled versions of pip & setuptools (bpo-16782)" (bpo-38488).

======================================================================
FAIL: test_with_pip (test.test_venv.EnsurePipTest)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-9e36.nondebug/build/Lib/test/test_venv.py", line 535, in test_with_pip
    self.do_test_with_pip(False)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-9e36.nondebug/build/Lib/test/test_venv.py", line 518, in do_test_with_pip
    self.assertEqual(err.rstrip(), "")
AssertionError: "WARNING: The directory '/.cache/pip' or [206 chars]lag." != ''
- WARNING: The directory '/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
+ 

test.pythoninfo says:

os.environ[HOME]: /
pwd.getpwuid(1002): pwd.struct_passwd(pw_name='buildbot', pw_passwd='*', pw_uid=1002, pw_gid=1002, pw_gecos='FreeBSD BuildBot', pw_dir='/home/buildbot', pw_shell='/bin/sh')
os.getuid: 1002
os.login: koobs
os.getgid: 1002
os.getgrouplist: 1002
os.getgroups: 1002

[ned-deily]

The failing test was fixed in an updated replacement PR, PR 20491, for bpo-38488.