~ /nix/store/7cj5gjh8yv5bqvizb2s89rqlhi7ysaav-qutebrowser-1.2.0/share/qutebrowser/scripts/dictcli.py list 

Traceback (most recent call last):
  File "/nix/store/7cj5gjh8yv5bqvizb2s89rqlhi7ysaav-qutebrowser-1.2.0/share/qutebrowser/scripts/dictcli.py", line 34, in <module>
    import attr
ModuleNotFoundError: No module named 'attr'