pip3 freeze output still confusing when stray AdjacentTempDirectorys are present

[ExplodingCabbage]

Environment

• pip version: 19.3.1
• Python version: 3.7.4
• OS: macOS 10.14.6

Like some other people (e.g. this fellow, and this guy), I have a site-packages littered with leftover folders created by AdjacentTempDirectory, visible at the bottom of this ls output:

Output

markamery@Marks-MacBook-Pro-3 site-packages$ ls -l
total 95312
drwxr-xr-x   12 markamery  admin   384B 28 Oct 18:24 Adafruit_GPIO/
drwxr-xr-x    7 markamery  admin   224B 28 Oct 18:24 Adafruit_GPIO-1.0.3.dist-info/
drwxr-xr-x    5 markamery  admin   160B 28 Oct 18:24 Adafruit_MAX31855/
drwxr-xr-x    8 markamery  admin   256B 28 Oct 18:24 Adafruit_MAX31855-1.6.1.dist-info/
drwxr-xr-x    5 markamery  admin   160B 28 Oct 18:24 Adafruit_PureIO/
drwxr-xr-x    7 markamery  admin   224B 28 Oct 18:24 Adafruit_PureIO-0.2.3.dist-info/
drwxr-xr-x    7 markamery  admin   224B 28 Oct 18:26 ArduinoKeywords-1.0.4.dist-info/
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 Babel-2.7.0.dist-info/
drwxr-xr-x   70 root       admin   2.2K 29 Oct 10:35 Bio/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:35 BioSQL/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 CairoSVG-2.4.2.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:48 Click-7.0.dist-info/
drwxr-xr-x    7 markamery  admin   224B 28 Oct 18:26 CppHeaderParser/
drwxr-xr-x    7 markamery  admin   224B 28 Oct 18:26 CppHeaderParser-2.7.4.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:35 Flask-1.1.1.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:51 Flask_Compress-1.4.0.dist-info/
drwxr-xr-x   25 root       admin   800B 21 Sep 20:28 IPython/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:25 Jinja2-2.10.3.dist-info/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:27 Mako-1.1.0.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:49 MarkupSafe-1.1.1.dist-info/
-rw-r--r--    1 root       admin    46B  1 Oct 14:15 NanoSim-H.egg-link
drwxr-xr-x   11 root       admin   352B 24 Oct 16:27 OpenSSL/
drwxr-xr-x  103 root       admin   3.2K 29 Oct 10:29 PIL/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:29 Pillow-6.2.1.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 PyWavelets-1.1.1.dist-info/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 PyYAML-3.13.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 18:11 Pygments-2.4.2.dist-info/
drwxr-xr-x    7 root       admin   224B 24 Oct 16:27 Pyphen-0.9.5.dist-info/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:35 SQLAlchemy-1.3.10.dist-info/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 Send2Trash-1.5.0.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:36 Sphinx-2.2.1.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:35 WeasyPrint-50.dist-info/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:36 Werkzeug-0.16.0.dist-info/
drwxr-xr-x   33 markamery  admin   1.0K 29 Oct 10:29 __pycache__/
-rw-r--r--    1 root       admin   396K 24 Oct 16:25 _cffi_backend.cpython-37m-darwin.so
-rw-r--r--    1 root       admin    23B 21 Sep 20:28 _pyrsistent_version.py
drwxr-xr-x   13 root       admin   416B 21 Sep 18:11 alabaster/
drwxr-xr-x   11 root       admin   352B 21 Sep 18:11 alabaster-0.7.12.dist-info/
drwxr-xr-x   16 root       admin   512B 29 Oct 10:35 alembic/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:35 alembic-1.2.1.dist-info/
drwxr-xr-x    4 root       admin   128B 29 Oct 10:25 apiclient/
drwxr-xr-x    6 root       admin   192B 21 Sep 20:28 appnope/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 appnope-0.1.0.dist-info/
drwxr-xr-x    6 markamery  admin   192B 28 Oct 18:26 arduinokeywords/
drwxr-xr-x   18 root       admin   576B 21 Sep 20:28 attr/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 attrs-19.1.0.dist-info/
drwxr-xr-x   31 root       admin   992B 29 Oct 10:24 awscli/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:24 awscli-1.16.268.dist-info/
drwxr-xr-x   19 root       admin   608B 21 Sep 18:11 babel/
drwxr-xr-x    6 root       admin   192B 21 Sep 20:28 backcall/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 backcall-0.1.0.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:35 biopython-1.74.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 bleach/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 bleach-3.1.0.dist-info/
drwxr-xr-x   15 root       admin   480B 29 Oct 10:28 boto3/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:28 boto3-1.10.4.dist-info/
drwxr-xr-x   42 root       admin   1.3K 29 Oct 10:24 botocore/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:24 botocore-1.13.4.dist-info/
drwxr-xr-x    7 root       admin   224B 24 Oct 16:26 cached_property-1.5.1.dist-info/
-rw-r--r--    1 root       admin   4.2K 24 Oct 16:21 cached_property.py
drwxr-xr-x   12 root       admin   384B 24 Oct 16:26 cachetools/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:26 cachetools-3.1.1.dist-info/
drwxr-xr-x   18 root       admin   576B 24 Oct 16:27 cairocffi/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 cairocffi-1.1.0.dist-info/
drwxr-xr-x   21 root       admin   672B 24 Oct 16:27 cairosvg/
drwxr-xr-x    7 root       admin   224B 21 Sep 18:11 certifi/
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 certifi-2019.9.11.dist-info/
drwxr-xr-x   23 root       admin   736B 24 Oct 16:27 cffi/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 cffi-1.13.1.dist-info/
drwxr-xr-x   43 root       admin   1.3K 21 Sep 18:11 chardet/
drwxr-xr-x   10 root       admin   320B 21 Sep 18:11 chardet-3.0.4.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:46 cigar-0.1.3.dist-info/
-rw-r--r--    1 root       admin   4.5K 16 Sep 15:45 cigar.py
drwxr-xr-x    4 root       admin   128B 29 Oct 10:25 ciso8601/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:25 ciso8601-2.1.2.dist-info/
-rwxr-xr-x    1 root       admin    18K 29 Oct 10:25 ciso8601.cpython-37m-darwin.so*
drwxr-xr-x   20 root       admin   640B 16 Sep 15:48 click/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 colorama/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:27 colorama-0.3.9.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 cpplint-1.4.4.dist-info/
-rw-r--r--    1 root       admin   247K 24 Oct 16:18 cpplint.py
drwxr-xr-x   10 root       admin   320B 24 Oct 16:27 cryptography/
drwxr-xr-x   12 root       admin   384B 24 Oct 16:27 cryptography-2.8.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 cssselect2/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 cssselect2-0.2.2.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:34 cv2/
drwxr-xr-x    9 root       admin   288B 16 Sep 15:45 cycler-0.10.0.dist-info/
-rw-r--r--    1 root       admin    16K 16 Sep 15:43 cycler.py
drwxr-xr-x   14 root       admin   448B 16 Sep 15:45 dateutil/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 decorator-4.4.0.dist-info/
-rw-r--r--    1 root       admin    17K 21 Sep 20:28 decorator.py
drwxr-xr-x   14 root       admin   448B 21 Sep 20:28 defusedxml/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 defusedxml-0.6.0.dist-info/
drwxr-xr-x   17 root       admin   544B 20 Sep 17:38 docutils/
drwxr-xr-x    8 root       admin   256B 20 Sep 17:38 docutils-0.15.2.dist-info/
-rw-r--r--    1 root       admin    15K 24 Oct 16:25 dot_parser.py
-rw-r--r--    1 root       admin    67B  3 Oct 14:43 easy-install.pth
-rw-r--r--    1 markamery  admin   126B  8 Jul 19:31 easy_install.py
-rwxr-xr-x    1 root       admin   2.9K 24 Oct 16:25 editor.py*
drwxr-xr-x    7 root       admin   224B 16 Sep 15:45 entrypoints-0.3.dist-info/
-rw-r--r--    1 root       admin   8.1K 16 Sep 15:43 entrypoints.py
drwxr-xr-x   17 root       admin   544B 29 Oct 10:24 flake8/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:24 flake8-3.7.9.dist-info/
drwxr-xr-x   22 root       admin   704B 29 Oct 10:35 flask/
-rw-r--r--    1 root       admin   3.8K 16 Sep 15:51 flask_compress.py
drwxr-xr-x  121 root       admin   3.8K 24 Oct 16:26 gevent/
drwxr-xr-x   11 root       admin   352B 24 Oct 16:26 gevent-1.4.0.dist-info/
drwxr-xr-x    4 root       admin   128B 24 Oct 16:26 google/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:25 google_api_python_client-1.7.11.dist-info/
-rw-r--r--    1 root       admin   539B 24 Oct 16:25 google_auth-1.6.3-py3.5-nspkg.pth
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 google_auth-1.6.3.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 google_auth_httplib2-0.0.3.dist-info/
-rw-r--r--    1 root       admin   8.2K 24 Oct 16:25 google_auth_httplib2.py
drwxr-xr-x   15 root       admin   480B 29 Oct 10:25 googleapiclient/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:26 greenlet-0.4.15.dist-info/
-rwxr-xr-x    1 root       admin    30K 24 Oct 16:26 greenlet.cpython-37m-darwin.so*
drwxr-xr-x   22 root       admin   704B 20 Sep 17:38 gunicorn/
drwxr-xr-x    9 root       admin   288B 20 Sep 17:38 gunicorn-19.9.0.dist-info/
drwxr-xr-x   16 root       admin   512B 24 Oct 16:27 html5lib/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:27 html5lib-1.0.1.dist-info/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:26 httplib2/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:26 httplib2-0.14.0.dist-info/
drwxr-xr-x   11 root       admin   352B 21 Sep 18:11 idna/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 idna-2.8.dist-info/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:27 imageio/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 imageio-2.6.1.dist-info/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 imagesize-1.1.0.dist-info/
-rw-r--r--    1 root       admin   9.9K 21 Sep 18:11 imagesize.py
drwxr-xr-x   14 root       admin   448B 29 Oct 10:35 influxdb/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:35 influxdb-5.2.3.dist-info/
drwxr-xr-x   31 root       admin   992B 21 Sep 20:28 ipykernel/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 ipykernel-5.1.2.dist-info/
-rw-r--r--    1 root       admin   451B 21 Sep 20:27 ipykernel_launcher.py
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 ipython-7.8.0.dist-info/
drwxr-xr-x   14 root       admin   448B 21 Sep 20:28 ipython_genutils/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 ipython_genutils-0.2.0.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 ipywidgets/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 ipywidgets-7.5.1.dist-info/
drwxr-xr-x   14 root       admin   448B 24 Sep 11:13 isodate/
drwxr-xr-x    9 root       admin   288B 24 Sep 11:13 isodate-0.6.0.dist-info/
drwxr-xr-x   13 root       admin   416B 16 Sep 15:49 itsdangerous/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:49 itsdangerous-1.1.0.dist-info/
drwxr-xr-x   18 root       admin   576B 21 Sep 20:28 jedi/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 jedi-0.15.1.dist-info/
drwxr-xr-x   30 root       admin   960B 29 Oct 10:25 jinja2/
drwxr-xr-x   11 root       admin   352B 20 Sep 17:38 jmespath/
drwxr-xr-x   10 root       admin   320B 20 Sep 17:38 jmespath-0.9.4.dist-info/
drwxr-xr-x   29 root       admin   928B 16 Sep 15:46 joblib/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:46 joblib-0.13.2.dist-info/
drwxr-xr-x   18 root       admin   576B 21 Sep 20:28 jsonschema/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 jsonschema-3.0.2.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 jupyter-1.0.0.dist-info/
-rw-r--r--    1 root       admin   177B 21 Sep 20:27 jupyter.py
drwxr-xr-x   29 root       admin   928B 21 Sep 20:28 jupyter_client/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 jupyter_client-5.3.3.dist-info/
drwxr-xr-x   11 root       admin   352B 21 Sep 20:28 jupyter_console/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 jupyter_console-6.0.0.dist-info/
drwxr-xr-x   13 root       admin   416B 21 Sep 20:28 jupyter_core/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 jupyter_core-4.5.0.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:45 kiwisolver-1.1.0.dist-info/
-rw-r--r--    1 root       admin   361K 16 Sep 15:43 kiwisolver.cpython-37m-darwin.so
drwxr-xr-x   21 root       admin   672B 24 Oct 16:27 mako/
drwxr-xr-x    9 root       admin   288B 16 Sep 15:49 markupsafe/
drwxr-xr-x   88 root       admin   2.8K 29 Oct 10:29 matplotlib/
-rw-r--r--    1 root       admin   569B 29 Oct 10:29 matplotlib-3.1.1-py3.7-nspkg.pth
drwxr-xr-x    8 root       admin   256B 29 Oct 10:29 matplotlib-3.1.1.dist-info/
drwxr-xr-x   10 root       admin   320B 16 Sep 15:45 mccabe-0.6.1.dist-info/
-rw-r--r--    1 root       admin    10K 16 Sep 15:43 mccabe.py
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 mistune-0.8.4.dist-info/
-rw-r--r--    1 root       admin    36K 21 Sep 20:27 mistune.py
drwxr-xr-x    9 root       admin   288B 24 Sep 11:12 mmtf/
drwxr-xr-x    7 root       admin   224B 24 Sep 11:12 mmtf_python-1.1.2.dist-info/
drwxr-xr-x    7 root       admin   224B 29 Oct 10:29 mpl_toolkits/
drwxr-xr-x    8 root       admin   256B 24 Sep 11:12 msgpack/
drwxr-xr-x    8 root       admin   256B 24 Sep 11:12 msgpack-0.6.2.dist-info/
drwxr-xr-x  196 root       admin   6.1K 29 Oct 10:24 mypy/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:24 mypy-0.740.dist-info/
drwxr-xr-x    7 root       admin   224B 16 Sep 15:45 mypy_extensions-0.4.1.dist-info/
-rw-r--r--    1 root       admin   4.9K 16 Sep 15:43 mypy_extensions.py
drwxr-xr-x   69 root       admin   2.2K 29 Oct 10:24 mypyc/
-rwxr-xr-x    1 root       admin    45M 29 Oct 10:24 mypyc_73ace4c88000b89b158a.cpython-37m-darwin.so*
drwxr-xr-x   16 root       admin   512B 21 Sep 20:28 nbconvert/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 nbconvert-5.6.0.dist-info/
drwxr-xr-x   17 root       admin   544B 21 Sep 20:28 nbformat/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 nbformat-4.4.0.dist-info/
drwxr-xr-x   19 root       admin   608B 24 Oct 16:27 networkx/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 networkx-2.4.dist-info/
drwxr-xr-x   35 root       admin   1.1K 21 Sep 20:28 notebook/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 notebook-6.0.1.dist-info/
drwxr-xr-x   30 root       admin   960B 29 Oct 10:26 numpy/
drwxr-xr-x   10 root       admin   320B 29 Oct 10:26 numpy-1.17.3.dist-info/
drwxr-xr-x   11 root       admin   352B 21 Sep 18:11 numpydoc/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 numpydoc-0.9.1.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:34 opencv_contrib_python-4.1.1.26.dist-info/
drwxr-xr-x   13 root       admin   416B 21 Sep 18:11 packaging/
drwxr-xr-x   10 root       admin   320B 21 Sep 18:11 packaging-19.2.dist-info/
drwxr-xr-x   20 root       admin   640B 29 Oct 10:31 pandas/
drwxr-xr-x   10 root       admin   320B 29 Oct 10:31 pandas-0.25.2.dist-info/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 pandocfilters-1.4.2.dist-info/
-rw-r--r--    1 root       admin   8.1K 21 Sep 20:28 pandocfilters.py
drwxr-xr-x    7 root       admin   224B 16 Sep 15:48 parasail/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:48 parasail-1.1.17.dist-info/
drwxr-xr-x   14 root       admin   448B 21 Sep 20:28 parso/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 parso-0.5.1.dist-info/
drwxr-xr-x   19 root       admin   608B 21 Sep 20:28 pexpect/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 pexpect-4.7.0.dist-info/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 pickleshare-0.7.5.dist-info/
-rw-r--r--    1 root       admin   9.7K 21 Sep 20:28 pickleshare.py
drwxr-xr-x    7 root       admin   224B 29 Oct 10:45 pip/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:45 pip-19.3.1.dist-info/
drwxr-xr-x    7 markamery  admin   224B 13 Sep 20:12 pkg_resources/
drwxr-xr-x   15 markamery  admin   480B 28 Oct 18:27 pkginfo/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:27 pkginfo-1.5.0.1.dist-info/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:26 ply/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:26 ply-3.11.dist-info/
drwxr-xr-x   11 root       admin   352B 25 Sep 15:48 primer3/
drwxr-xr-x    9 root       admin   288B 25 Sep 15:48 primer3_py-0.6.0.dist-info/
drwxr-xr-x   10 root       admin   320B  1 Oct 14:15 progressbar/
drwxr-xr-x    8 root       admin   256B  1 Oct 14:15 progressbar2-3.47.0.dist-info/
drwxr-xr-x   23 root       admin   736B 21 Sep 20:28 prometheus_client/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 prometheus_client-0.7.1.dist-info/
drwxr-xr-x   36 root       admin   1.1K 21 Sep 20:28 prompt_toolkit/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 prompt_toolkit-2.0.9.dist-info/
drwxr-xr-x   16 root       admin   512B 29 Oct 10:25 psutil/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:25 psutil-5.6.3.dist-info/
drwxr-xr-x   17 root       admin   544B 29 Oct 10:26 psycopg2/
drwxr-xr-x    7 root       admin   224B 29 Oct 10:26 psycopg2-2.8.4-py3.7.egg-info/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 ptyprocess/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 ptyprocess-0.6.0.dist-info/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 pyOpenSSL-19.0.0.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 pyasn1/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 pyasn1-0.4.7.dist-info/
drwxr-xr-x   85 root       admin   2.7K 24 Oct 16:26 pyasn1_modules/
drwxr-xr-x   11 root       admin   352B 24 Oct 16:26 pyasn1_modules-0.2.7.dist-info/
drwxr-xr-x   12 root       admin   384B 16 Sep 15:45 pycodestyle-2.5.0.dist-info/
-rw-r--r--    1 root       admin    98K 16 Sep 15:43 pycodestyle.py
drwxr-xr-x   16 root       admin   512B 24 Oct 16:27 pycparser/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 pycparser-2.19.dist-info/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:26 pydot-1.4.1.dist-info/
-rw-r--r--    1 root       admin    53K 24 Oct 16:25 pydot.py
drwxr-xr-x   11 root       admin   352B 16 Sep 15:45 pyflakes/
drwxr-xr-x    9 root       admin   288B 16 Sep 15:45 pyflakes-2.1.1.dist-info/
drwxr-xr-x   22 root       admin   704B 21 Sep 18:11 pygments/
-rw-r--r--    1 root       admin    90B 29 Oct 10:29 pylab.py
drwxr-xr-x   10 root       admin   320B 16 Sep 15:45 pyparsing-2.4.2.dist-info/
-rw-r--r--    1 root       admin   257K 16 Sep 15:43 pyparsing.py
drwxr-xr-x    5 root       admin   160B 24 Oct 16:27 pyphen/
-rw-r--r--    1 root       admin    11K 24 Oct 16:25 pyphen.py
drwxr-xr-x   23 root       admin   736B 21 Sep 20:28 pyrsistent/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 pyrsistent-0.15.4.dist-info/
drwxr-xr-x   41 root       admin   1.3K 16 Sep 15:45 pysam/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:45 pysam-0.15.3.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 pyserial-3.4.dist-info/
drwxr-xr-x    9 root       admin   288B 16 Sep 15:45 python_dateutil-2.8.0.dist-info/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:27 python_editor-1.0.4.dist-info/
drwxr-xr-x   12 root       admin   384B  1 Oct 14:15 python_utils/
drwxr-xr-x   10 root       admin   320B  1 Oct 14:15 python_utils-2.3.0.dist-info/
drwxr-xr-x   10 root       admin   320B 29 Oct 10:25 pytz/
drwxr-xr-x   11 root       admin   352B 29 Oct 10:25 pytz-2019.3.dist-info/
drwxr-xr-x   22 root       admin   704B 24 Oct 16:27 pywt/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 pyzmq-18.1.0.dist-info/
-rw-r--r--    1 root       admin    23B 16 Sep 15:48 qcat.egg-link
drwxr-xr-x   39 root       admin   1.2K 21 Sep 20:28 qtconsole/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 qtconsole-4.5.5.dist-info/
drwxr-xr-x   25 root       admin   800B 24 Sep 11:13 rdflib/
drwxr-xr-x   11 root       admin   352B 24 Sep 11:13 rdflib-4.2.2.dist-info/
drwxr-xr-x   11 markamery  admin   352B 28 Oct 18:27 readme_renderer/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:27 readme_renderer-24.0.dist-info/
drwxr-xr-x    8 root       admin   256B  4 Oct 15:28 regex/
drwxr-xr-x    7 root       admin   224B  4 Oct 15:28 regex-2019.8.19.dist-info/
drwxr-xr-x   13 root       admin   416B 24 Sep 11:13 reportlab/
drwxr-xr-x    8 root       admin   256B 24 Sep 11:13 reportlab-3.5.26.dist-info/
drwxr-xr-x   21 root       admin   672B 21 Sep 18:11 requests/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 requests-2.22.0.dist-info/
drwxr-xr-x   15 markamery  admin   480B 28 Oct 18:27 requests_toolbelt/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:27 requests_toolbelt-0.9.1.dist-info/
drwxr-xr-x   21 root       admin   672B 24 Oct 16:26 rsa/
drwxr-xr-x   10 root       admin   320B 24 Oct 16:26 rsa-3.4.2.dist-info/
drwxr-xr-x   18 root       admin   576B 24 Oct 16:26 s3transfer/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 s3transfer-0.2.1.dist-info/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:28 scikit_image-0.16.2.dist-info/
drwxr-xr-x    8 root       admin   256B 16 Sep 15:46 scikit_learn-0.21.3.dist-info/
drwxr-xr-x   35 root       admin   1.1K 29 Oct 10:27 scipy/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:27 scipy-1.3.1.dist-info/
drwxr-xr-x    6 root       admin   192B 24 Oct 16:27 selenium/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 selenium-3.141.0.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 send2trash/
drwxr-xr-x   26 root       admin   832B 24 Oct 16:27 serial/
drwxr-xr-x   42 markamery  admin   1.3K 13 Sep 20:12 setuptools/
drwxr-xr-x    9 markamery  admin   288B 13 Sep 20:12 setuptools-41.0.1-py3.7.egg-info/
-rw-r--r--    1 markamery  admin   2.0K 13 Sep 20:12 sitecustomize.py
drwxr-xr-x    8 root       admin   256B 16 Sep 15:45 six-1.12.0.dist-info/
-rw-r--r--    1 root       admin    32K 16 Sep 15:43 six.py
drwxr-xr-x   28 root       admin   896B 29 Oct 10:28 skimage/
drwxr-xr-x   51 root       admin   1.6K 16 Sep 15:46 sklearn/
drwxr-xr-x    7 root       admin   224B 16 Sep 15:46 sklearn-0.0.dist-info/
drwxr-xr-x   32 root       admin   1.0K 21 Sep 18:11 snowballstemmer/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 snowballstemmer-1.9.1.dist-info/
drwxr-xr-x   42 root       admin   1.3K 29 Oct 10:36 sphinx/
drwxr-xr-x    8 markamery  admin   256B 28 Oct 18:26 sphinx_autodoc_typehints-1.9.0.dist-info/
-rw-r--r--    1 markamery  admin    15K 28 Oct 18:26 sphinx_autodoc_typehints.py
drwxr-xr-x   13 root       admin   416B 21 Sep 18:12 sphinx_rtd_theme/
drwxr-xr-x    9 root       admin   288B 21 Sep 18:12 sphinx_rtd_theme-0.4.3.dist-info/
drwxr-xr-x    8 root       admin   256B 21 Sep 18:11 sphinxcontrib/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_applehelp-1.0.1-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_applehelp-1.0.1.dist-info/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_devhelp-1.0.1-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_devhelp-1.0.1.dist-info/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_htmlhelp-1.0.2-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_htmlhelp-1.0.2.dist-info/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_jsmath-1.0.1-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_jsmath-1.0.1.dist-info/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_qthelp-1.0.2-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_qthelp-1.0.2.dist-info/
-rw-r--r--    1 root       admin   574B 21 Sep 18:11 sphinxcontrib_serializinghtml-1.1.3-py3.7-nspkg.pth
drwxr-xr-x    9 root       admin   288B 21 Sep 18:11 sphinxcontrib_serializinghtml-1.1.3.dist-info/
drwxr-xr-x   26 root       admin   832B 29 Oct 10:35 sqlalchemy/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 sqlalchemy_schemadisplay-1.3.dist-info/
-rw-r--r--    1 root       admin   8.7K 24 Oct 16:26 sqlalchemy_schemadisplay.py
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 terminado/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 terminado-0.8.2.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 testpath/
drwxr-xr-x    7 root       admin   224B 21 Sep 20:28 testpath-0.4.2.dist-info/
drwxr-xr-x   10 markamery  admin   320B 28 Oct 18:24 tests/
drwxr-xr-x   14 root       admin   448B 24 Oct 16:27 tinycss2/
drwxr-xr-x    8 root       admin   256B 24 Oct 16:27 tinycss2-1.0.2.dist-info/
drwxr-xr-x    7 root       admin   224B 24 Oct 16:27 tls_syslog-0.2.0.dist-info/
drwxr-xr-x    7 root       admin   224B 24 Oct 16:27 tlssyslog/
drwxr-xr-x   37 root       admin   1.2K 21 Sep 20:28 tornado/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 tornado-6.0.3.dist-info/
drwxr-xr-x   21 markamery  admin   672B 28 Oct 18:27 tqdm/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:27 tqdm-4.36.1.dist-info/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 traitlets/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 traitlets-4.3.2.dist-info/
drwxr-xr-x   15 markamery  admin   480B 28 Oct 18:27 twine/
drwxr-xr-x    9 markamery  admin   288B 28 Oct 18:27 twine-2.0.0.dist-info/
drwxr-xr-x   10 root       admin   320B 29 Oct 10:24 typed_ast/
drwxr-xr-x    7 root       admin   224B 29 Oct 10:24 typed_ast-1.4.0.dist-info/
drwxr-xr-x    8 markamery  admin   256B 28 Oct 18:23 typing_extensions-3.7.4.1.dist-info/
-rw-r--r--    1 markamery  admin    74K 28 Oct 18:23 typing_extensions.py
drwxr-xr-x    8 root       admin   256B 24 Oct 16:26 uWSGI-2.0.18.dist-info/
drwxr-xr-x    7 root       admin   224B 24 Oct 16:26 uritemplate/
drwxr-xr-x    9 root       admin   288B 24 Oct 16:26 uritemplate-3.0.0.dist-info/
drwxr-xr-x   16 root       admin   512B 20 Sep 17:38 urllib3/
drwxr-xr-x   10 root       admin   320B 20 Sep 17:38 urllib3-1.23.dist-info/
-rw-r--r--    1 root       admin    10K 24 Oct 16:26 uwsgidecorators.py
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 wcwidth/
drwxr-xr-x   10 root       admin   320B 21 Sep 20:28 wcwidth-0.1.7.dist-info/
drwxr-xr-x   21 root       admin   672B 29 Oct 10:35 weasyprint/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 webencodings/
drwxr-xr-x    9 root       admin   288B 21 Sep 20:28 webencodings-0.5.1.dist-info/
drwxr-xr-x   27 root       admin   864B 29 Oct 10:36 werkzeug/
drwxr-xr-x   19 markamery  admin   608B 13 Sep 20:12 wheel/
drwxr-xr-x    9 markamery  admin   288B 15 Sep  2018 wheel-0.31.1-py3.7.egg-info/
drwxr-xr-x    9 markamery  admin   288B 13 Sep 20:12 wheel-0.33.4-py3.7.egg-info/
drwxr-xr-x    6 root       admin   192B 21 Sep 20:28 widgetsnbextension/
drwxr-xr-x    8 root       admin   256B 21 Sep 20:28 widgetsnbextension-3.5.1.dist-info/
drwxr-xr-x   77 root       admin   2.4K 29 Oct 10:30 wx/
drwxr-xr-x    9 root       admin   288B 29 Oct 10:30 wxPython-4.0.7.dist-info/
drwxr-xr-x   20 root       admin   640B 24 Oct 16:27 yaml/
drwxr-xr-x   75 root       admin   2.3K 29 Oct 10:25 yoctopuce/
drwxr-xr-x    8 root       admin   256B 29 Oct 10:25 yoctopuce-1.10.37304.dist-info/
drwxr-xr-x   20 root       admin   640B 21 Sep 20:28 zmq/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~%tocore-1.12.253.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~-2/
drwxr-xr-x  102 markamery  admin   3.2K 24 Oct 16:26 ~-L/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~-LAlchemy-1.3.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:45 ~-ake8-3.7.7.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~-ask-1.0.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~-asyPrint-47.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~-ctopuce-1.10.35153.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~-embic-1.0.10.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~-fluxdb-5.2.2.dist-info/
drwxr-xr-x    9 markamery  admin   288B 21 Sep 18:11 ~-hinx-2.2.0.dist-info/
drwxr-xr-x    4 markamery  admin   128B 24 Oct 16:26 ~-iclient/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~-ikit_image-0.15.0.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~-ipy-1.3.0.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~-mpy-1.16.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~-ndas-0.24.2.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:49 ~-nja2-2.10.1.dist-info/
drwxr-xr-x   70 markamery  admin   2.2K 24 Oct 16:26 ~-o/
drwxr-xr-x    7 markamery  admin   224B 16 Sep 15:45 ~-ped_ast-1.3.5.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~-rkzeug-0.15.4.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~-so8601-2.1.1.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~-tocore-1.12.253.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~-tplotlib-3.0.3.dist-info/
drwxr-xr-x   11 markamery  admin   352B 24 Oct 16:26 ~-tz-2019.1.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~-util-5.6.2.dist-info/
drwxr-xr-x   77 markamery  admin   2.4K 24 Oct 16:27 ~-wx/
drwxr-xr-x    7 markamery  admin   224B 24 Oct 16:27 ~-ycopg2-2.8.2-py3.7.egg-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~.tocore-1.12.253.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~=tocore-1.12.253.dist-info/
drwxr-xr-x  102 markamery  admin   3.2K 24 Oct 16:26 ~IL/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~QLAlchemy-1.3.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~andas-0.24.2.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~atplotlib-3.0.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~cikit_image-0.15.0.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~cipy-1.3.0.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~easyPrint-47.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~erkzeug-0.15.4.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:49 ~inja2-2.10.1.dist-info/
drwxr-xr-x   70 markamery  admin   2.2K 24 Oct 16:26 ~io/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~iso8601-2.1.1.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:45 ~lake8-3.7.7.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~lask-1.0.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~lembic-1.0.10.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~nfluxdb-5.2.2.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~octopuce-1.10.35153.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~otocore-1.12.253.dist-info/
drwxr-xr-x    9 markamery  admin   288B 21 Sep 18:11 ~phinx-2.2.0.dist-info/
drwxr-xr-x    4 markamery  admin   128B 24 Oct 16:26 ~piclient/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~sutil-5.6.2.dist-info/
drwxr-xr-x    7 markamery  admin   224B 24 Oct 16:27 ~sycopg2-2.8.2-py3.7.egg-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~umpy-1.16.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~v2/
drwxr-xr-x   77 markamery  admin   2.4K 24 Oct 16:27 ~wx/
drwxr-xr-x   77 markamery  admin   2.4K 24 Oct 16:27 ~x/
drwxr-xr-x    7 markamery  admin   224B 16 Sep 15:45 ~yped_ast-1.3.5.dist-info/
drwxr-xr-x   11 markamery  admin   352B 24 Oct 16:26 ~ytz-2019.1.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~~2/
drwxr-xr-x  102 markamery  admin   3.2K 24 Oct 16:26 ~~L/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~~LAlchemy-1.3.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:45 ~~ake8-3.7.7.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~~ask-1.0.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~~asyPrint-47.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~~ctopuce-1.10.35153.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~~embic-1.0.10.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~~fluxdb-5.2.2.dist-info/
drwxr-xr-x    9 markamery  admin   288B 21 Sep 18:11 ~~hinx-2.2.0.dist-info/
drwxr-xr-x    4 markamery  admin   128B 24 Oct 16:26 ~~iclient/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~~ikit_image-0.15.0.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~~ipy-1.3.0.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~~mpy-1.16.3.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:27 ~~ndas-0.24.2.dist-info/
drwxr-xr-x    9 markamery  admin   288B 16 Sep 15:49 ~~nja2-2.10.1.dist-info/
drwxr-xr-x   70 markamery  admin   2.2K 24 Oct 16:26 ~~o/
drwxr-xr-x    7 markamery  admin   224B 16 Sep 15:45 ~~ped_ast-1.3.5.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~~rkzeug-0.15.4.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~~so8601-2.1.1.dist-info/
drwxr-xr-x    9 markamery  admin   288B 24 Oct 16:26 ~~tocore-1.12.253.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:26 ~~tplotlib-3.0.3.dist-info/
drwxr-xr-x   11 markamery  admin   352B 24 Oct 16:26 ~~tz-2019.1.dist-info/
drwxr-xr-x    8 markamery  admin   256B 24 Oct 16:27 ~~util-5.6.2.dist-info/
drwxr-xr-x    7 markamery  admin   224B 24 Oct 16:27 ~~ycopg2-2.8.2-py3.7.egg-info/

Description
As a consequence of the above, when I run pip3 freeze, I get a whole load of seemingly nonsensical warnings:

Warnings output

WARNING: Could not generate requirement for distribution -ycopg2 2.8.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ycopg2='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -util 5.6.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-util==5'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -tz 2019.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-tz==201'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -tplotlib 3.0.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-tplotli'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -tocore 1.12.253 (/usr/local/lib/python3.7/site-packages): Parse error at "'-tocore='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -so8601 2.1.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-so8601='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -rkzeug 0.15.4 (/usr/local/lib/python3.7/site-packages): Parse error at "'-rkzeug='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ped-ast 1.3.5 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ped-ast'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -nja2 2.10.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-nja2==2'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ndas 0.24.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ndas==0'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -mpy 1.16.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-mpy==1.'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -LAlchemy 1.3.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-LAlchem'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ipy 1.3.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ipy==1.'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ikit-image 0.15.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ikit-im'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -hinx 2.2.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-hinx==2'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -fluxdb 5.2.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-fluxdb='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -embic 1.0.10 (/usr/local/lib/python3.7/site-packages): Parse error at "'-embic=='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ctopuce 1.10.35153 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ctopuce'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -asyPrint 47 (/usr/local/lib/python3.7/site-packages): Parse error at "'-asyPrin'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ask 1.0.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ask==1.'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ake8 3.7.7 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ake8==3'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -ytz 2019.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-ytz==20'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -yped-ast 1.3.5 (/usr/local/lib/python3.7/site-packages): Parse error at "'-yped-as'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -umpy 1.16.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-umpy==1'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -.tocore 1.12.253 (/usr/local/lib/python3.7/site-packages): Parse error at "'-.tocore'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -sycopg2 2.8.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-sycopg2'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -sutil 5.6.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-sutil=='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -QLAlchemy 1.3.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-QLAlche'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -phinx 2.2.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-phinx=='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -otocore 1.12.253 (/usr/local/lib/python3.7/site-packages): Parse error at "'-otocore'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -octopuce 1.10.35153 (/usr/local/lib/python3.7/site-packages): Parse error at "'-octopuc'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -nfluxdb 5.2.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-nfluxdb'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -lembic 1.0.10 (/usr/local/lib/python3.7/site-packages): Parse error at "'-lembic='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -lask 1.0.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-lask==1'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -lake8 3.7.7 (/usr/local/lib/python3.7/site-packages): Parse error at "'-lake8=='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -iso8601 2.1.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-iso8601'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -inja2 2.10.1 (/usr/local/lib/python3.7/site-packages): Parse error at "'-inja2=='": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution - 2.8.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-==2.8.2'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -erkzeug 0.15.4 (/usr/local/lib/python3.7/site-packages): Parse error at "'-erkzeug'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -easyPrint 47 (/usr/local/lib/python3.7/site-packages): Parse error at "'-easyPri'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -cipy 1.3.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-cipy==1'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -cikit-image 0.15.0 (/usr/local/lib/python3.7/site-packages): Parse error at "'-cikit-i'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -atplotlib 3.0.3 (/usr/local/lib/python3.7/site-packages): Parse error at "'-atplotl'": Expected W:(abcd...)
WARNING: Could not generate requirement for distribution -andas 0.24.2 (/usr/local/lib/python3.7/site-packages): Parse error at "'-andas=='": Expected W:(abcd...)

@cjerdonek's change at #6538 improves this slightly (previously there was no clue that these weird names referred to anything in the site-packages directory), but as a naive user this I'm still left unsure what I'm being told or what to do about it. When encountering this message, I'm left adrift in a couple of ways:

1. The new message falls short of explicitly stating that the warning was triggered by a folder with a weird name in the site-packages directory. It mentions the directory, and mentions the weird name, and then leaves me to guess.
2. The name given isn't even a perfect match for anything in the site-packages directory! The subdirectories triggering the errors start with a ~, but in the error message that ~ has somehow shapeshifted into a -.
3. Even if I correctly infer that the weird subfolders in my site-packages directory somehow relate to this error message despite the above hurdles, I'm still left confused and guessing about what that implies. Why are they there at all? Should I delete them or is that going to break my Python installation somehow? Is something horribly corrupted and do I need to reinstall Python? The error message gives me no guidance; it suggests that something is wrong with the fact that these folders exist, but that's all the help I get.

(The answer to my rhetorical questions in point 3 is that they're temporary folders created by Pip, possibly left behind when I killed a Pip process previously before it could clean up, and that deleting them is safe. But I'm not sure how I could've found this out without stumbling across this Stack Overflow answer.)

It's got to be possible to avoid confusing and worrying the user in this way.

A possible easy fix

Make pip freeze ignore ~-prefixed folders without logging a warning. From what I understand from https://stackoverflow.com/a/57488427/1709587, ~-prefixed directories are guaranteed to be temporary directories. So just treat them like they don't exist in freeze.

A possible harder fix

Attack the root cause by ensuring that these temporary directories eventually get cleaned up properly, even if a pip process gets uncleanly killed. I see two strategies for this:

• Check for their presence and attempt cleanup on every pip invocation, even if the command is to do something unrelated (similarly to how git, by default, sometimes decides to run garbage collection on the objects in your local repo).
• Use the OS's temp directory (e.g. via Python's builtin tempfile module) instead

(I'm throwing both these ideas out naively, without much understanding of Pip's internals; I apologise if either of them is stupid for a reason I'm not seeing.)

[peterlada]

I'm having the same issue.

[chrahunt]

I think the right approach is to not pollute the site-packages directory. This is not good from the perspective of interoperability, we don't want to mandate that every tool skip ~-prefixed directories.

The AdjacentTempDirectory was originally introduced in #6029 to fix #3055 in order to overcome the issue of the temp directory + nested file path exceeding MAX_PATH on Windows. So an approach using tempfile would need a companion strategy to preserve the path information without getting into the same situation as before.

[ExplodingCabbage]

The AdjacentTempDirectory was originally introduced in #6029

Hmm - sounds like we should ping @zooba, then, since he wrote #6029 and may have some wisdom to offer.

[winsonluk]

I have #9393 ready if we want to skip directories prefaced with non-alphanumeric characters (the safe_name() function in https://setuptools.readthedocs.io/en/latest/pkg_resources.html replaces non-alphanumeric char sequences with a dash, hence the ~ shapeshifting into -)

I really think ignoring temp directories (folders prefixed with ~ / -) is the right move here. This pip freeze warning is encountered by every user who's tried pip upgrade on a package installed with sudo pip install, due to a bug that #9393 fixes.

[zooba]

As well as avoiding the long paths, it also makes uninstall/rollback significantly faster and more reliable. The fact that it still occasionally fails means that it would be failing anyway, but instead of junk in the directory you'd have a totally failed update/remove.

Ignoring the directories in freeze seems fine to me, but the should probably be skipped by whichever function/library thinks that they are importable when they are clearly not. (Maybe also replacing ".dist-info" in the temporary name will help avoid it showing up in the scan?)

Having pip attempt cleanup again on future runs would help keep things tidy, but really, I think that's a level of complexity that isn't necessary. "Do not show invalid packages in pip freeze" seems like a good generic name for this issue, as presumably there are other ways to get into this state besides having an uninstall fail.

[ExplodingCabbage]

Hmm. I don't know the history of why these folders got introduced, so maybe I'm missing something, but I have some questions:

instead of junk in the directory you'd have a totally failed update/remove.

Okay - but why is the junk preferable to that? Given the choice between:

A. some operation fails

and

B. the operation fails in exactly the same way, but also leaves a folder of undocumented junk behind

why would I want option B? Even if the junk didn't confuse tools, it'd still be confusing to a user trying to make sense of the content of their site-packages directory.

it also makes uninstall/rollback significantly faster and more reliable

Relative to what alternative, and how so?

[zooba]

You get option C, which is "the operation succeeds, but also leaves a folder with undocumented name containing the files that weren't able to be deleted".

The alternative was to copy all the files from their original location to a backup location (possibly on a different drive, hopefully a local one, but no guarantees), copy all the metadata and permissions to the backup location (assuming it supports them), then attempt to delete all the original files. Rollback would do the same thing in reverse. Renaming the directory in-place is a trivial and equivalent operation by comparison.