AttributeError on Python 3.10 #28
Description
I am using flask-nav==0.6 on Python 3.10.4 and meet this error:
File "/usr/local/lib/python3.10/site-packages/flask_nav/__init__.py", line 49, in <module>
class ElementRegistry(collections.MutableMapping):
AttributeError: module 'collections' has no attribute 'MutableMapping'