Package: python3-matplotlib
Version: 2.1.1-2
Severity: important

Dear Maintainer,

Running a python3 script that uses pkg_resources.load_entry_point
cannot run because the dependency subprocess32 is not available.

subprocess32 is a Python 2 backport of a Python 3 module 
so is a dependency that can never be satifisfied.

I commented subprocess32 out of 
/usr/lib/python3/dist-packages/matplotlib-2.1.1.egg-info/requires.txt
and then discovered that backports.functools_lru_cache is also a
Python 2 backport.

It looks like the requirements.txt file to resolve #887964 and
#887965 for Python 2 is being incorrectly installed in the Python 3
package.

Diane Trout

-- System Information:
Debian Release: buster/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'testing'), (500,
'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/16 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-matplotlib depends on:
ii  libc6                               2.26-4
ii  libfreetype6                        2.8.1-1
ii  libgcc1                             1:7.2.0-19
ii  libjs-jquery                        3.2.1-1
ii  libjs-jquery-ui                     1.12.1+dfsg-5
ii  libpng16-16                         1.6.34-1
ii  libstdc++6                          7.2.0-19
ii  python-matplotlib-data              2.1.1-2
ii  python3                             3.6.4-1
ii  python3-cycler                      0.10.0-1
ii  python3-dateutil                    2.6.1-1
ii  python3-numpy [python3-numpy-abi9]  1:1.13.1-1
ii  python3-pyparsing                   2.1.10+dfsg1-1
ii  python3-six                         1.11.0-1
ii  python3-tz                          2017.2-2
ii  zlib1g                              1:1.2.8.dfsg-5

Versions of packages python3-matplotlib recommends:
ii  python3-pil  4.3.0-2
ii  python3-tk   3.6.4-2

Versions of packages python3-matplotlib suggests:
ii  dvipng                 1.15-1
pn  ffmpeg                 <none>
ii  ghostscript            9.22~dfsg-1
pn  gir1.2-gtk-3.0         <none>
pn  inkscape               <none>
ii  ipython3               5.5.0-1
ii  librsvg2-common        2.40.20-2
pn  python-matplotlib-doc  <none>
pn  python3-cairocffi      <none>
ii  python3-gi             3.24.1-3
pn  python3-gi-cairo       <none>
pn  python3-gobject        <none>
ii  python3-nose           1.3.7-3
pn  python3-pyqt4          <none>
ii  python3-scipy          0.19.1-2
pn  python3-sip            <none>
ii  python3-tornado        4.5.1-2+b1
ii  texlive-extra-utils    2016.20170123-5
ii  texlive-latex-extra    2016.20170123-5
pn  ttf-staypuft           <none>

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