[Debian-astro-maintainers] Bug#967965: astropy: FTBFS with scipy 1.5: [doctest] astropy.stats.funcs.binom_conf_interval failed

[Andreas Beckmann]

Source: astropy
Version: 4.0.1+post1-3
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
Control: found -1 4.1~rc1-2

Hi,

astropy recently started to FTBFS in sid (and experimental, but not yet
in bullseye). I could reproduce the failure in bullseye with python3-scipy/sid:

=================================== FAILURES ===================================
______________ [doctest] astropy.stats.funcs.binom_conf_interval _______________
631     --------
632     Integer inputs return an array with shape (2,):
633 
634     >>> binom_conf_interval(4, 5, interval='wilson')
635     array([0.57921724, 0.92078259])
636 
637     Arrays of arbitrary dimension are supported. The Wilson and Jeffreys
638     intervals give similar results, even for small k, N:
639 
640     >>> binom_conf_interval([0, 1, 2, 5], 5, interval='wilson')
Expected:
    array([[0.        , 0.07921741, 0.21597328, 0.83333304],
           [0.16666696, 0.42078276, 0.61736012, 1.        ]])
Got:
    array([[1.38777878e-17, 7.92174125e-02, 2.15973276e-01, 8.33333042e-01],
           [1.66666958e-01, 4.20782762e-01, 6.17360116e-01, 1.00000000e+00]])

/build/astropy-4.0.1+post1/.pybuild/cpython3_3.8/build/astropy/stats/funcs.py:640: DocTestFailure
= 1 failed, 13907 passed, 412 skipped, 49 xfailed, 12 xpassed in 169.79 seconds =


Andreas
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