[Debichem-devel] New version of python-numpy breaks autopkgtests of python-ase in testing

[Stuart Prescott]

Hi

> With a recent upload of python-numpy the autopkgtest of python-ase
> started to fail in testing [2]. This is currently delaying the migration
> of python-numpy version 1:1.14.3-2 [3].

numpy 1.14 has changed its output format for str and repr, changing whitespace 
and the number of sig figs. This breaks doctests that include direct numpy 
output without formatting the values explicitly.

It is possible to configure numpy 1.14 to use legacy formatting which almost 
always fixes the doctest problem. Adding something like the following to each 
test file, to the pytest conftest.py or to a test runner script is sufficient:

# Whitespace changes between numpy 1.13 and 1.14 will cause the doctests
# to fail; when doctests are updated to 1.14 format, this can be removed.
try:    # CRUFT
    import numpy as np
    np.set_printoptions(legacy='1.13')
except TypeError:
    pass

(including the numpy developers in this so that they can forward this info to 
any other lost souls)

cheers
Stuart

-- 
Stuart Prescott    http://www.nanonanonano.net/   stuart at nanonanonano.net
Debian Developer   http://www.debian.org/         stuart at debian.org
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