Random Failures at pylint/checkers/imports.py with v 2.16

Bug description

This bug happens from time to time (70% success, 30% failures I would say) It never happened before upgrading to 2.16 (I was using 2.15.6)

Configuration

here is an example of python code that generates this problem

import numpy as np

def func(x):
    return x*2

Command used

pylint -ry  myfile.py

Pylint output

.
Traceback (most recent call last):
  File "/usr/local/bin/pylint", line 8, in <module>
    sys.exit(run_pylint())
  File "/usr/local/lib/python3.8/dist-packages/pylint/__init__.py", line 36, in run_pylint
    PylintRun(argv or sys.argv[1:])
  File "/usr/local/lib/python3.8/dist-packages/pylint/lint/run.py", line 214, in __init__
    score_value = linter.generate_reports()
  File "/usr/local/lib/python3.8/dist-packages/pylint/lint/pylinter.py", line 1149, in generate_reports
    sect = self.make_reports(self.stats, previous_stats)
  File "/usr/local/lib/python3.8/dist-packages/pylint/reporters/reports_handler_mix_in.py", line 76, in make_reports
    r_cb(report_sect, stats, old_stats)
  File "/usr/local/lib/python3.8/dist-packages/pylint/checkers/imports.py", line 981, in _report_external_dependencies
    dep_info = _make_tree_defs(self._external_dependencies_info().items())
  File "/usr/local/lib/python3.8/dist-packages/pylint/checkers/imports.py", line 179, in _make_tree_defs
    node[1] += files
TypeError: 'tuple' object does not support item assignment

Expected behavior

Messages by category

+-----------+-------+---------+-----------+ |type |number |previous |difference | +===========+=======+=========+===========+ |convention |0 |NC |NC | +-----------+-------+---------+-----------+ |refactor |0 |NC |NC | +-----------+-------+---------+-----------+ |warning |0 |NC |NC | +-----------+-------+---------+-----------+ |error |0 |NC |NC | +-----------+-------+---------+-----------+

Messages

+-----------+------------+ |message id |occurrences | +===========+============+

Your code has been rated at 10.00/10

Pylint version

pylint 2.16
astroid 2.14.1
python 3.8.10

OS / Environment

Ubuntu 22.04

Additional dependencies

absl-py==1.3.0 aiobotocore==1.4.2 aiohttp==3.8.3 aiohttp-retry==2.4.5 aioitertools==0.11.0 aiosignal==1.3.1 alabaster==0.7.12 alembic==1.4.3 anyio==3.6.2 appdirs==1.4.4 argon2-cffi==21.3.0 argon2-cffi-bindings==21.2.0 astroid==2.14.1 asttokens==2.2.0 astunparse==1.6.3 async-timeout==4.0.2 atpublic==3.1.1 attrs==22.2.0 autopep8==1.5.4 Babel==2.11.0 backcall==0.2.0 beautifulsoup4==4.9.3 black==23.1a1 bleach==5.0.1 blessings==1.6 bokeh==2.4.3 boto3==1.17.106 botocore==1.20.106 bottle==0.12.18 cached-property==1.5.2 cachetools==5.2.1 cairocffi==1.2.0 CairoSVG==2.5.2 certifi==2020.12.5 cffi==1.14.5 cfgv==3.3.1 chardet==3.0.4 charset-normalizer==2.1.1 chex==0.1.5 click==8.1.3 colorama==0.4.6 commonmark==0.9.1 configobj==5.0.6 coverage==5.3 cpplint==1.6.1 cssselect2==0.4.1 cupy-cuda11x==11.5.0 cycler==0.10.0 darker==1.6.1 dataclasses-json==0.5.2 debugpy==1.6.4 decorator==4.4.2 defusedxml==0.7.1 Deprecated==1.2.13 dictdiffer==0.9.0 dill==0.3.6 diskcache==5.4.0 distlib==0.3.6 distro==1.4.0 dm-tree==0.1.8 docutils==0.19 dpath==2.1.1 dulwich==0.20.50 dvc==2.7.4 elasticdeform==0.5.0 entrypoints==0.4 et-xmlfile==1.0.1 etils==0.9.0 exceptiongroup==1.0.4 executing==1.2.0 fakeredis==1.4.3 fancycompleter==0.9.1 fastjsonschema==2.16.2 fastrlock==0.8.1 filelock==3.8.0 flatbuffers==2.0.7 flatten-dict==0.4.2 flax==0.6.3 flufl.lock==3.2 fortls==2.13.0 fpdf==1.7.2 frozenlist==1.3.3 fsspec==2021.8.1 ftfy==6.1.1 funcy==1.17 future==0.18.2 ghp-import==2.1.0 gin-config==0.5.0 gitdb==4.0.10 GitPython==3.1.27 glog==0.3.1 google-auth==2.16.0 google-auth-oauthlib==0.4.6 gprof2dot==2022.7.29 gpustat==0.6.0 grandalf==0.6 graphviz==0.20.1 grpcio==1.51.1 h5py==3.7.0 html5lib==1.1 humanize==4.4.0 identify==2.5.9 idna==2.10 imageio==2.9.0 imagesize==1.4.1 importlab==0.8 importlib-metadata==5.1.0 importlib-resources==5.10.0 iniconfig==1.1.1 ipykernel==6.17.1 ipython==8.7.0 ipython-genutils==0.2.0 isort==5.8.0 jax==0.3.22 jaxlib==0.3.15 jaxopt==0.4.3 jdcal==1.4.1 jedi==0.18.2 Jinja2==3.1.2 jmespath==0.10.0 joblib==1.0.1 json5==0.9.10 jsons==1.4.0 jsonschema==4.17.3 jupyter-server==1.23.3 jupyter_client==7.4.7 jupyter_core==5.1.0 jupyterlab==3.5.0 jupyterlab-pygments==0.2.2 jupyterlab_server==2.16.3 kaleido==0.2.1 kiwisolver==1.3.1 kornia==0.6.6 lazy-object-proxy==1.6.0 lcov-cobertura==1.6 libcst==0.4.9 livereload==2.6.3 llvmlite==0.39.1 lmdb==1.4.0 loguru==0.6.0 lunr==0.5.8 lupa==1.14.1 mailchecker==5.0.4 Mako==1.1.3 Markdown==3.3 markdown2==2.3.9 MarkupSafe==2.1.1 marshmallow==3.8.0 marshmallow-enum==1.5.1 matplotlib==3.3.2 matplotlib-inline==0.1.6 mccabe==0.6.1 mergedeep==1.3.4 minio==7.1.1 mistletoe==0.9.0 mistune==2.0.4 mkdocs==1.2.4 mkdocs-material==6.0.2 mkdocs-material-extensions==1.0.1 mkdocs-pdf-export-plugin==0.5.8 mock==4.0.2 mpi4py==3.1.4 msgpack==1.0.4 multidict==6.0.2 mypy-extensions==0.4.3 nanotime==0.5.2 natsort==8.2.0 nbclassic==0.4.8 nbclient==0.7.2 nbconvert==7.2.5 nbformat==5.7.0 nest-asyncio==1.5.4 networkx==2.5 nibabel==5.0.0 ninja==1.11.1 nltk==3.5 nodeenv==1.7.0 notebook==6.5.2 notebook_shim==0.2.2 numba==0.56.0 numpy==1.22.0 nvidia-ml-py3==7.352.0 oauthlib==3.2.2 opencv-python==4.4.0.44 openpyxl==3.0.5 opt-einsum==3.3.0 optax==0.1.4 orbax==0.0.23 ott-jax==0.3.1 packaging==23.0 pandas==1.5.2 pandocfilters==1.5.0 panel==0.14.1 param==1.12.2 parso==0.8.3 pathspec==0.8.1 pdbpp==0.10.3 pexpect==4.8.0 phonenumbers==8.13.1 pickleshare==0.7.5 Pillow==7.2.0 pkgutil_resolve_name==1.3.10 platformdirs==2.5.4 plotly==5.11.0 pluggy==0.13.1 ply==3.11 POT==0.8.2 pre-commit==2.20.0 prometheus-client==0.15.0 prompt-toolkit==3.0.33 protobuf==3.20.3 psutil==5.9.2 psycopg2-binary==2.8.6 ptyprocess==0.7.0 PuLP==2.7.0 pure-eval==0.2.2 py==1.10.0 pyasn1==0.4.8 pyasn1-modules==0.2.8 pycodestyle==2.7.0 pycparser==2.20 pycrypto==2.6.1 pyct==0.4.8 pydicom==2.0.0 pydot==1.4.2 pygit2==1.11.1 Pygments==2.14.0 pygtrie==2.5.0 PyJWT==1.7.1 pylint==2.16.0 pymdown-extensions==8.0.1 pymp==0.0.6 pymp-pypi==0.5.0 pynvml==11.4.1 pyparsing==2.4.7 PyPDF2==2.11.2 Pyphen==0.10.0 pyrepl==0.9.0 pyrsistent==0.19.2 pytest==7.2.0 pytest-cov==2.10.1 pytest-dotenv==0.5.2 pytest-html==3.2.0 pytest-metadata==2.0.4 pytest-mock==3.6.0 pytest-picked==0.4.6 python-benedict==0.26.0 python-dateutil==2.8.2 python-dotenv==0.16.0 python-editor==1.0.4 python-fsutil==0.7.0 python-gflags==3.1.2 python-gitlab==3.11.0 python-markdown-math==0.7 python-slugify==6.1.2 pytype==2022.12.15 pytz==2020.1 pyviz-comms==2.2.1 PyWavelets==1.1.1 PyYAML==6.0 pyyaml_env_tag==0.1 pyzmq==24.0.1 redis==3.5.3 regex==2020.9.27 requests==2.28.1 requests-oauthlib==1.3.1 requests-toolbelt==0.10.1 retrying==1.3.3 rich==12.6.0 rq==1.5.2 rsa==4.9 ruamel.yaml==0.17.21 ruamel.yaml.clib==0.2.7 s3fs==2021.8.1 s3transfer==0.4.2 sadisplay==0.4.9 scikit-image==0.17.2 scikit-learn==1.1.3 scipy==1.9.3 Send2Trash==1.8.0 shortuuid==1.0.11 shtab==1.5.8 SimpleITK==2.1.0 sinkhorn-knopp==0.2 six==1.15.0 slack-sdk==3.19.5 smmap==5.0.0 sniffio==1.3.0 snowballstemmer==2.2.0 sortedcontainers==2.3.0 soupsieve==2.2.1 sourceinspect==0.0.4 Sphinx==6.1.2 sphinx-copybutton==0.5.1 sphinxcontrib-devhelp==1.0.2 sphinxcontrib-htmlhelp==2.0.0 sphinxcontrib-jsmath==1.0.1 sphinxcontrib-qthelp==1.0.3 sphinxcontrib-serializinghtml==1.1.5 sphinxcontrib.applehelp==1.0.3 SQLAlchemy==1.3.19 ssh-import-id==5.10 stack-data==0.6.2 stringcase==1.2.0 tabulate==0.9.0 taichi==1.3.0 tailer==0.4.1 tenacity==8.1.0 tensorboard==2.11.0 tensorboard-data-server==0.6.1 tensorboard-plugin-wit==1.8.1 tensorstore==0.1.28 termcolor==2.1.1 terminado==0.17.0 text-unidecode==1.3 threadpoolctl==3.1.0 tifffile==2021.3.17 tinycss2==1.1.0 toml==0.10.2 tomli==2.0.1 tomlkit==0.11.6 toolz==0.12.0 torch==1.12.1 torchaudio==0.12.1 torchio==0.18.83 torchvision==0.13.1 torchviz==0.0.2 tornado==6.2 tornado-sqlalchemy==0.7.0 tqdm==4.50.0 traitlets==5.6.0 typing-inspect==0.8.0 typing_extensions==4.4.0 typish==1.9.3 Unidecode==1.3.4 urllib3==1.25.10 virtualenv==20.17.0 voluptuous==0.13.1 watchdog==2.1.9 wcwidth==0.2.5 WeasyPrint==52.5 webencodings==0.5.1 websocket-client==1.4.2 Werkzeug==2.2.2 wget==3.2 wmctrl==0.4 wrapt==1.12.1 xlrd==2.0.1 xmltodict==0.13.0 yarl==1.8.1 zc.lockfile==2.0 zipp==3.11.0

pylint-dev / pylint