Cannot run in Python versions > 3.9 due to astrodendro

[nbrunett]

I tried running in Python 3.10.2 but encountered the following import error (partial traceback to exclude my scripts and directory names):

File ".../astrodendro/__init__.py", line 3
    from .dendrogram import Dendrogram, periodic_neighbours
File ".../astrodendro/dendrogram.py", line 8
    from collections import Iterable
ImportError: cannot import name 'Iterable' from 'collections'

I opened an issue in the dendrograms/astrodendro repo about this, but for pycprops it looks like you must use Python versions <= 3.9 until that issue is fixed in astrodendro.

Let me know if you need any more information.