[Qgis-user] A load of updates in OSGeo4W

[Pedro Camargo]

Following up on the issue of updating Python and its dependencies.

I develop a plugin for Transportation planning/modelling/forecasting called
QAequilibraE, so I am interested in the impact of Python changes on plugins
that have strict dependency requirements, particularly those compiled
against NumPy and PyArrow (trying to narrow the issue here).

We have recently started having problems with the installation of the
plugin on Windows, where the problem seems to be PyArrow compatibility.

As far as I can tell, Pyarrow is not installed on the Windows distribution
of QGIS 3.38.3. However, whenever I install it on a user/plugin-specific
path, it starts throwing the error below.

In that context, I have three questions:

* Does anyone know what's going on here?  Is this an incompatibility with
Arrow binaries (the plugin installs 15.0.2)
* Where do I find the exact list of Python packages installed/shipped in
QGIS so I can track it and keep the plugin and its dependencies updated?
* Does anyone have a suggestion on a better process to keep plugins
up-to-date with QGIS and ensure a more robust experience for users?

Thanks,
Pedro
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