upgrade to django 3.2 / python3#1

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biolds wants to merge 15 commits intobaby5:masterfrom

Commits on Apr 5, 2023

upgrade to django 3.2
biolds
committed

Commits on Apr 6, 2023

file downloads
biolds
committed

Commits on Aug 18, 2024

Commits on Sep 7, 2024

make the /download filename look harmless
biolds
committed

Commits on Sep 8, 2024

doc update
biolds
committed

Commits on Apr 3, 2025

Commits on Sep 11, 2025