On 3/3/26 12:24, Paul Tomblin via Mailman-users wrote:

ERROR: Could not find a version that satisfies the requirement nntplib; python_version >= 
"3.13" (from mailman) (from versions: none)
ERROR: No matching distribution found for nntplib; python_version >= "3.13"

I guess I need to upgrade my python version?


At <https://gitlab.com/mailman/mailman/-/blob/master/pyproject.toml?ref_type=heads#L41> we require `standard-nntplib` if the python version is >= 3.13. However in Mailman 3.3.10 this line erroneously required `nntplib` rather than `standard-nntplib`. Thus the failure.

I have noted before there are incompatibilities between Mailman <= 3.3.10 and Python 3.13. This is one of them. You could downgrade your Python to 3.12, but I recommend installing Mailman core from gitlab with
```
pip install git+https://gitlab.com/mailman/mailman@master
```
That version is compatible with Python 3.13.

--
Mark Sapiro <[email protected]>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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