Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/home/dag/tinydb-test/env/lib/python3.7/site-packages/tinydb_serialization/__init__.py", line 6, in <module>

from tinydb.utils import with_metaclass
ImportError: cannot import name 'with_metaclass' from 'tinydb.utils' (/home/dag/tinydb-test/env/lib/python3.7/site-packages/tinydb/utils.py)

Traceback (most recent call last):


 "/home/tcamuso/bin/hg-fast-export.py", line 7, in <module>

from mercurial.scmutil import revsymbol
ImportError: cannot import name revsymbol
