$ docker run python:slim python -c 'import dbm.ndbm'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/local/lib/python3.11/dbm/ndbm.py", line 3, in <module>
    from _dbm import *
ModuleNotFoundError: No module named '_dbm'

$ docker run python:slim find /usr/local/lib/python3.11/lib-dynload/ -name '*dbm*' -print
/usr/local/lib/python3.11/lib-dynload/_gdbm.cpython-311-x86_64-linux-gnu.so

$ docker run python python -c 'import dbm.ndbm'

$ docker run python find /usr/local/lib/python3.11/lib-dynload/ -name '*dbm*' -print
/usr/local/lib/python3.11/lib-dynload/_dbm.cpython-311-x86_64-linux-gnu.so
/usr/local/lib/python3.11/lib-dynload/_gdbm.cpython-311-x86_64-linux-gnu.so