The program, when installed in a minimal environment and run, crashes:

=====
$ click-man --help
Traceback (most recent call last):
  File "/usr/bin/click-man", line 33, in <module>
    sys.exit(load_entry_point('click-man==0.4.2', 'console_scripts', 'click-man')())
             ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/bin/click-man", line 25, in importlib_load_entry_point
    return next(matches).load()
           ~~~~~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.14/importlib/metadata/__init__.py", line 179, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.14/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1406, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1371, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1342, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 938, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 759, in exec_module
  File "<frozen importlib._bootstrap>", line 491, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/click_man/__main__.py", line 16, in <module>
    from click_man.core import write_man_pages
  File "/usr/lib/python3/dist-packages/click_man/core.py", line 13, in <module>
    from distutils.version import LooseVersion
ModuleNotFoundError: No module named 'distutils'
=====

(To get to this point I needed to explicitly install
‘python3-pkg-resources’ as a workaround for bug#1145125.)

The installed Python library ‘click_man’ attempts to import from the
package ‘distutils’ but that Python package is not installed.

This is because the ‘python3-click-man’ Debian binary package fails to
declare a dependency on ‘python3-setuptools’.