E _pytest.pathlib.ImportPathMismatchError

• When I test doctest in my own package, if I use pytest --doctest-modules, then it will raise this error. But If I do the doctest on each individual file, it will pass. I think the doctests is ok, But i can not avoid this error.
• ---------------------- --------------------
  attrs 19.3.0
  Automat 0.8.0
  blinker 1.4
  certifi 2019.11.28
  chardet 3.0.4
  Click 7.0
  cloud-init 21.3
  colorama 0.4.3
  command-not-found 0.3
  configobj 5.0.6
  constantly 15.1.0
  cryptography 2.8
  cycler 0.11.0
  dbus-python 1.2.16
  distro 1.4.0
  distro-info 0.23ubuntu1
  entrypoints 0.3
  fonttools 4.29.0
  httplib2 0.14.0
  hyperlink 19.0.0
  idna 2.8
  importlib-metadata 1.5.0
  incremental 16.10.1
  iniconfig 1.1.1
  Jinja2 2.10.1
  jsonpatch 1.22
  jsonpointer 2.0
  jsonschema 3.2.0
  keyring 18.0.1
  kiwisolver 1.3.2
  language-selector 0.1
  launchpadlib 1.10.13
  lazr.restfulclient 0.14.2
  lazr.uri 1.0.3
  MarkupSafe 1.1.0
  matplotlib 3.5.1
  more-itertools 4.2.0
  netifaces 0.10.4
  numpy 1.22.1
  oauthlib 3.1.0
  packaging 21.3
  pexpect 4.6.0
  Pillow 9.0.0
  pip 20.0.2
  pluggy 1.0.0
  py 1.11.0
  pyasn1 0.4.2
  pyasn1-modules 0.2.1
  PyGObject 3.36.0
  PyHamcrest 1.9.0
  PyJWT 1.7.1
  pymacaroons 0.13.0
  PyNaCl 1.3.0
  pyOpenSSL 19.0.0
  pyparsing 3.0.7
  pyrsistent 0.15.5
  pyserial 3.4
  pytest 6.2.5
  python-apt 2.0.0+ubuntu0.20.4.6
  python-dateutil 2.8.2
  python-debian 0.1.36ubuntu1
  PyYAML 5.3.1
  requests 2.22.0
  requests-unixsocket 0.2.0
  SecretStorage 2.3.1
  service-identity 18.1.0
  setuptools 45.2.0
  simplejson 3.16.0
  six 1.14.0
  sos 4.1
  ssh-import-id 5.10
  systemd-python 234
  toml 0.10.2
  Tracknaliser 0.1.0
  Twisted 18.9.0
  ubuntu-advantage-tools 27.2
  ufw 0.36
  unattended-upgrades 0.1
  urllib3 1.25.8
  wadllib 1.3.3
  wheel 0.34.2
  zipp 1.0.0
  zope.interface 4.7.1
• 6.2.5
• minimal example if possible

Start by reproducing the reported behavior with pytest --doctest-modules on the package, then compare it with running doctest on individual files. The issue provides no minimal example or project file; done means the package-wide doctest run no longer raises ImportPathMismatchError.