Bug#1067234: symfit: autopkgtest regression with NumPy 1.26

[Graham Inggs]

Control: tags -1 + patch

Hi Maintainer

While asserting that no warnings are raised is a useful test for the
upstream developers, I don't think it makes sense for downstreams.

I propose to disable the assertion as follows:

--- a/tests/test_minimizers.py
+++ b/tests/test_minimizers.py
@@ -117,7 +117,7 @@
     # Should no longer raise warnings, because internally we practice
     # what we preach.
     fit_custom = BFGS(chi_squared, [a, b])
-    assert len(recwarn) == 0
+#    assert len(recwarn) == 0

     fit_custom_result = fit_custom.execute()

Please let me know if you are happy with a team upload and I will proceed.
As a bonus, I attach a patch that fixes several SyntaxWarnings that
occur with Python 3.12.

Regards
Graham
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