Python 3.9: TypeError: Invalid first argument to register(). ForwardRef('CachedResponse') is not a class.

[a0x8o]

On Python 3.9 I observe the following error (macOS):

File "/usr/local/Cellar/python@3.9/3.9.15/Frameworks/Python.framework/Versions/3.9/lib/python3.9/functools.py", line 855, in register
    raise TypeError(
TypeError: Invalid first argument to `register()`. ForwardRef('CachedResponse') is not a class.

[mgedmin]

Can you show me the full traceback please?

[mgedmin]

Google tells me this might be a bug in one of ghcloneall's dependencies, requests-cache: requests-cache/requests-cache#501

It was reported as fixed in requests-cache 0.9.1. What version of requests-cache do you have installed?

[mgedmin]

As a workaround perhaps you can use ghcloneall --no-http-cache? The HTTP cache is primarily useful for development, when you run ghcloneall multiple times in succession, to avoid hitting GitHub API rate limits for unauthenticated requests.

Since I don't have the full traceback I can't tell if this happens at import time, or during install_cache(). If it happens during import time, --no-http-cache will not help.