Bug#966002: python3-pandas: cannot be loaded anymore - FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/matplotlib/mpl-data/matplotlibrc'

[Norbert Preining]

Package: python3-pandas
Version: 0.25.3+dfsg2-3
Severity: grave
Justification: renders package unusable
X-Debbugs-Cc: norbert at preining.info


$ python3
Python 3.8.5 (default, Jul 20 2020, 18:32:44)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/pandas/__init__.py", line 56, in <module>
    from pandas.core.api import (
  File "/usr/lib/python3/dist-packages/pandas/core/api.py", line 24, in <module>
    from pandas.core.groupby import Grouper, NamedAgg
  File "/usr/lib/python3/dist-packages/pandas/core/groupby/__init__.py", line 1, in <module>
    from pandas.core.groupby.generic import (  # noqa: F401
  File "/usr/lib/python3/dist-packages/pandas/core/groupby/generic.py", line 44, in <module>
    from pandas.core.frame import DataFrame
  File "/usr/lib/python3/dist-packages/pandas/core/frame.py", line 115, in <module>
    from pandas.core.series import Series
  File "/usr/lib/python3/dist-packages/pandas/core/series.py", line 84, in <module>
    import pandas.plotting
  File "/usr/lib/python3/dist-packages/pandas/plotting/__init__.py", line 59, in <module>
    from pandas.plotting._core import (
  File "/usr/lib/python3/dist-packages/pandas/plotting/_core.py", line 17, in <module>
    import pandas.plotting._matplotlib  # noqa
  File "/usr/lib/python3/dist-packages/pandas/plotting/_matplotlib/__init__.py", line 3, in <module>
    from pandas.plotting._matplotlib.boxplot import (
  File "/usr/lib/python3/dist-packages/pandas/plotting/_matplotlib/boxplot.py", line 4, in <module>
    from matplotlib.artist import setp
  File "/usr/lib/python3/dist-packages/matplotlib/__init__.py", line 899, in <module>
    rcParamsDefault = _rc_params_in_file(
  File "/usr/lib/python3/dist-packages/matplotlib/__init__.py", line 798, in _rc_params_in_file
    with _open_file_or_url(fname) as fd:
  File "/usr/lib/python3.8/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/usr/lib/python3/dist-packages/matplotlib/__init__.py", line 776, in _open_file_or_url
    with open(fname, encoding=encoding) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/matplotlib/mpl-data/matplotlibrc'
>>>


-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.8.0-rc6 (SMP w/8 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-pandas depends on:
ii  python3                3.8.2-3
ii  python3-dateutil       2.8.1-4
ii  python3-numpy          1:1.19.0-1
ii  python3-pandas-lib     0.25.3+dfsg2-3
ii  python3-pkg-resources  46.1.3-1
ii  python3-six            1.15.0-1
ii  python3-tz             2020.1-2

Versions of packages python3-pandas recommends:
ii  python3-bs4         4.9.1-1
ii  python3-html5lib    1.1-1
ii  python3-lxml        4.5.2-1
ii  python3-matplotlib  3.3.0-1
ii  python3-numexpr     2.7.1-1+b1
ii  python3-openpyxl    3.0.3-1
ii  python3-scipy       1.4.1-2
ii  python3-tables      3.6.1-2
ii  python3-xlrd        1.1.0-5
ii  python3-xlwt        1.3.0-3

Versions of packages python3-pandas suggests:
ii  python-pandas-doc    0.25.3+dfsg2-3
pn  python3-statsmodels  <none>

-- no debconf information