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[Fix] Migrate to odrpack because of scipy.odr deprecation (#279)

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* [Fix] Migrate to odrpack because of scipy.odr deprecation in recent
release

* [Fix] Fix behaviour for rank deficient fits. Add test

* [Fix] Relax test_merge_obs tolerance to machine epsilon and update ODR docstring to reference odrpack

* [ci] Re-add -Werror to pytest workflow

* [Fix] Handle platform-dependent rank-deficient warning in ODR tests

* [Fix] Improve rank-deficient detection and bump odrpack to >=0.5

Fix incorrect ODRPACK95 info code parsing: rank deficiency is encoded
in the tens digit (info // 10 % 10), not the hundreds digit. Add
irank and inv_condnum to the warning message for diagnostics.
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Fabian Joswig 2026-04-19 19:50:36 +02:00 • committed by GitHub
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tests/obs_test.py
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@ -511,7 +511,7 @@ def test_merge_obs():
my_obs2 = pe.Obs([np.random.normal(1, .1, 100)], ['t|2'], idl=[range(1, 200, 2)])
merged = pe.merge_obs([my_obs1, my_obs2])
diff = merged - (my_obs2 + my_obs1) / 2
assert np.isclose(0, diff.value, atol=1e-16)
assert np.isclose(0, diff.value, atol=np.finfo(np.float64).eps)
with pytest.raises(ValueError):
pe.merge_obs([my_obs1, my_obs1])
my_covobs = pe.cov_Obs(1.0, 0.003, 'cov')