psycopg2-binary-2.8.2 libcrypt.so.1: cannot open shared object file

[loleg]

    import psycopg2
  File "/home/oleg/.local/share/virtualenvs/backend-CqoIE4Q5/lib/python3.7/site-packages/psycopg2/__init__.py", line 50, in <module>
    from psycopg2._psycopg import (                     # noqa
ImportError: libcrypt.so.1: cannot open shared object file: No such file or directory

This error has popped up since upgrading to Fedora 30. I believe it has to do with the deprecation of Glib's libcrypt in favor of https://github.com/besser82/libxcrypt .. but I'm not sure what's going on here, since nowhere is it mentioned in the code or libpqxx.

[loleg]

Via https://fedoraproject.org/wiki/Changes/FullyRemoveDeprecatedAndUnsafeFunctionsFromLibcrypt the workaround is to install the libxcrypt-compat system package. However, there are numerous security gotchas related to this, and it would be great if we could figure out where to bump the reference to libcrypt.so.2 as suggested.

[dvarrazzo]

This is not something we specifically chose to do, but comes from the Python wheel build system and I don't believe it can be changed without creating a new standard

https://www.python.org/dev/peps/pep-0513/
https://www.python.org/dev/peps/pep-0571/

maybe @matthew-brett has more up-to-date info?

[dvarrazzo]

Assuming the problem has been solved by the PyPA folks