[Pkg-matrix-maintainers] Bug#1129026: matrix-synapse: pympler was removed from debian, still recommended

[Peter Gervai]

Package: matrix-synapse
Version: 1.146.0-3
Severity: important

pympler was removed from debian (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1082154) but the package still recommends it.
It is a problem since if the old version is installed, synapse won't start:

2026-02-25_20:21:05.30404 Synapse 1.146.0 needs pympler>=1.0; extra == "cache-memory", but got pympler==0.9
2026-02-25_20:21:05.30407 Synapse 1.146.0 needs pympler>=1.0; extra == "all", but got pympler==0.9
2026-02-25_20:21:05.30412 Missing Requirements: pympler, pympler

Removing pympler makes it work again (but the memory management consequences may be relevant).


Versions of packages matrix-synapse recommends:
pn  matrix-synapse-ldap3  <none>
pn  python3-pympler       <none>