ImportError: cannot import name 'Mapping' from 'collections'

[orlandogr15]

I get the following error when trying to run fastrometry from the terminal. I'm on Ubuntu 18 and installed Python 3.10 to run this, so I'm not sure if the problem is on my end. I also tried to run it inside a conda environment but get the same result.

Traceback (most recent call last): File "/home/orlando/.local/bin/fastrometry", line 5, in <module> from fastrometry.fastrometry import callFromCommandLine File "/home/orlando/.local/lib/python3.10/site-packages/fastrometry/__init__.py", line 1, in <module> from fastrometry.fastrometry import findWCS File "/home/orlando/.local/lib/python3.10/site-packages/fastrometry/fastrometry.py", line 7, in <module> from .catalogue import getIntermediateCoords File "/home/orlando/.local/lib/python3.10/site-packages/fastrometry/catalogue.py", line 4, in <module> from AstraCarta import astracarta File "/home/orlando/.local/lib/python3.10/site-packages/AstraCarta/__init__.py", line 1, in <module> from AstraCarta.AstraCarta import astracarta File "/home/orlando/.local/lib/python3.10/site-packages/AstraCarta/AstraCarta.py", line 1, in <module> from astroquery.simbad import Simbad File "/home/orlando/.local/lib/python3.10/site-packages/astroquery/simbad/__init__.py", line 34, in <module> from .core import Simbad, SimbadClass, SimbadBaseQuery File "/home/orlando/.local/lib/python3.10/site-packages/astroquery/simbad/core.py", line 8, in <module> import requests File "/usr/lib/python3/dist-packages/requests/__init__.py", line 43, in <module> import urllib3 File "/usr/lib/python3/dist-packages/urllib3/__init__.py", line 8, in <module> from .connectionpool import ( File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 29, in <module> from .connection import ( File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 40, in <module> from .util.ssl_ import ( File "/usr/lib/python3/dist-packages/urllib3/util/__init__.py", line 3, in <module> from .connection import is_connection_dropped File "/usr/lib/python3/dist-packages/urllib3/util/connection.py", line 3, in <module> from .wait import wait_for_read File "/usr/lib/python3/dist-packages/urllib3/util/wait.py", line 1, in <module> from .selectors import ( File "/usr/lib/python3/dist-packages/urllib3/util/selectors.py", line 14, in <module> from collections import namedtuple, Mapping ImportError: cannot import name 'Mapping' from 'collections' (/usr/lib/python3.10/collections/__init__.py)

[user29A]

Hello. I talked to the main developer, Cameron Leahy, and this was his response:

It looks like this is a common problem caused by python's default library "collections" changing the names of its packages in Python 3.10. We don't use collections in fastrometry, from the message output it looks like it's being called as part of astroquery's routine. I haven't tried running fastrometry on my linux yet (but I will do so when I have a little more time) but there are some suggestions on the stackexchange page that might help.

Cameron

https://stackoverflow.com/questions/69381312/in-vs-code-importerror-cannot-import-name-mapping-from-collections

Hope that helps!