[Python-modules-team] Bug#966141: black: syntax error during installation

[Diego Roversi]

Package: black
Version: 18.9b0-1-6
Severity: important

Hello,

  during installation it gives me this error:

Setting up black (18.9b0-1-6) ...
-V is ignored in pypycompile
Failed to byte-compile /usr/lib/python3/dist-packages/black.py:   File
"/usr/lib/python3/dist-packages/black.py", line 128
    ) -> "FileMode":
    ^
SyntaxError: invalid syntax


-- System Information:
Debian Release: 10.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, arm64

Kernel: Linux 5.6.14+ (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages black depends on:
ii  python3                3.7.3-1
ii  python3-appdirs        1.4.3-1
ii  python3-attr           18.2.0-1
ii  python3-click          7.0-1
ii  python3-pkg-resources  40.8.0-1
ii  python3-toml           0.10.0-1

black recommends no packages.

Versions of packages black suggests:
pn  python-black-doc  <none>

-- debconf-show failed