Bug#933234: python3-memory-profiler: recommend python3-matplotlib for python3-mprof plot

[Jochen Sprickerhof]

Package: python3-memory-profiler
Version: 0.52-1
Severity: normal

On a system without python3-matplotlib I get:

# python3-mprof plot
matplotlib is needed for plotting.
No module named 'pylab'

I would propose to add python3-matplotlib to the Recommends section as
other subcommands of python3-mprof do work.

(I guess this should be the same for python-memory-profiler, but Python
2 is EOL..)

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

Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-memory-profiler depends on:
ii  python3         3.7.3-1
ii  python3-psutil  5.5.1-1

python3-memory-profiler recommends no packages.

python3-memory-profiler suggests no packages.

-- no debconf information