8.11.1: pytest fails

I'm packaging your module as an rpm package so I'm using the typical PEP517 based build, install and test cycle used on building packages from non-root account.

python3 -sBm build -w --no-isolation
because I'm calling build with --no-isolation I'm using during all processes only locally installed modules
install .whl file in </install/prefix> using 'installer` module
run pytest with $PYTHONPATH pointing to sitearch and sitelib inside </install/prefix>
build is performed in env which is cut off from access to the public network (pytest is executed with -m "not network")

Here is pytest output:

+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-twilio-8.11.1-2.fc35.x86_64/usr/lib64/python3.8/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-twilio-8.11.1-2.fc35.x86_64/usr/lib/python3.8/site-packages
+ /usr/bin/pytest -ra -m 'not network'
==================================================================================== test session starts ====================================================================================
platform linux -- Python 3.8.18, pytest-7.4.4, pluggy-1.3.0
rootdir: /home/tkloczko/rpmbuild/BUILD/twilio-python-8.11.1
collected 537 items / 2 errors

========================================================================================== ERRORS ===========================================================================================
______________________________________________________________________ ERROR collecting tests/cluster/test_webhook.py _______________________________________________________________________
tests/cluster/test_webhook.py:7: in <module>
    class RequestHandler(BaseHTTPRequestHandler):
tests/cluster/test_webhook.py:9: in RequestHandler
    validator = RequestValidator(os.environ["TWILIO_AUTH_TOKEN"])
/usr/lib64/python3.8/os.py:675: in __getitem__
    raise KeyError(key) from None
E   KeyError: 'TWILIO_AUTH_TOKEN'
_________________________________________________________________ ERROR collecting twilio/rest/events/v1/sink/sink_test.py __________________________________________________________________
import file mismatch:
imported module 'twilio.rest.events.v1.sink.sink_test' has this __file__ attribute:
  /home/tkloczko/rpmbuild/BUILDROOT/python-twilio-8.11.1-2.fc35.x86_64/usr/lib/python3.8/site-packages/twilio/rest/events/v1/sink/sink_test.py
which is not the same as the test file we want to collect:
  /home/tkloczko/rpmbuild/BUILD/twilio-python-8.11.1/twilio/rest/events/v1/sink/sink_test.py
HINT: remove __pycache__ / .pyc files and/or use a unique basename for your test file modules
===================================================================================== warnings summary ======================================================================================
tests/unit/base/test_version.py:7
  /home/tkloczko/rpmbuild/BUILD/twilio-python-8.11.1/tests/unit/base/test_version.py:7: PytestCollectionWarning: cannot collect test class 'TestPage' because it has a __init__ constructor (from: tests/unit/base/test_version.py)
    class TestPage(Page):

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
================================================================================== short test summary info ==================================================================================
ERROR tests/cluster/test_webhook.py - KeyError: 'TWILIO_AUTH_TOKEN'
ERROR twilio/rest/events/v1/sink/sink_test.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 2 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
=============================================================================== 1 warning, 2 errors in 1.20s ================================================================================

List of installed modules in build env:

Package                       Version
----------------------------- -------
aiohttp                       3.9.1
aiohttp-retry                 2.8.3
aiosignal                     1.3.1
aiounittest                   1.4.2
alabaster                     0.7.16
asgiref                       3.7.2
async-timeout                 4.0.3
attrs                         23.2.0
Babel                         2.14.0
backports.zoneinfo            0.2.1
build                         1.0.3
cffi                          1.16.0
charset-normalizer            3.3.2
commonmark                    0.9.1
cppclean                      0.13
cryptography                  41.0.5
distro                        1.9.0
Django                        4.2.6
dnf                           4.18.2
docutils                      0.20.1
exceptiongroup                1.1.3
frozenlist                    1.4.1
gpg                           1.23.2
idna                          3.6
imagesize                     1.4.1
importlib-metadata            7.0.1
iniconfig                     2.0.0
installer                     0.7.0
Jinja2                        3.1.3
libdnf                        0.72.0
MarkupSafe                    2.1.3
mock                          5.1.0
multidict                     6.0.4
packaging                     23.2
pluggy                        1.3.0
ply                           3.11
pycparser                     2.21
Pygments                      2.17.2
PyJWT                         2.8.0
pyngrok                       7.0.5
pyproject_hooks               1.0.0
pytest                        7.4.4
python-dateutil               2.8.2
pytz                          2023.3
PyYAML                        6.0.1
recommonmark                  0.7.1
requests                      2.31.0
setuptools                    69.0.3
six                           1.16.0
snowballstemmer               2.2.0
Sphinx                        7.1.2
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.5
sphinxcontrib-htmlhelp        2.0.4
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.3
sphinxcontrib-serializinghtml 1.1.10
sqlparse                      0.4.4
tomli                         2.0.1
typing_extensions             4.9.0
urllib3                       1.26.18
wheel                         0.42.0
wrapt                         1.16.0
yarl                          1.9.2
zipp                          3.17.0

Please let me know if you need more details or want me to perform some diagnostics.

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