[Do Not Merge] Recreate issue 4270 in the main repo

[hmaarrfk]

@jni @Borda this should help confirm our suspicions on the issue you reported.

Note the build and test versions of numpy

scikit-image/scikit-image#4270

[hmaarrfk]

gotta love how it seems like it was a Windows only issue. Both Linux and OSX are able to run numpy on 1.15.4 having built with 1.13.3. Gotta wait for windows.

[hmaarrfk]

@jni, @Borda this is really weird, but these builds seem to pass on python 3.6 installed with the same problematic versions as before... so strange.

https://ci.appveyor.com/project/scikit-image/scikit-image-wheels/builds/28417501/job/afuajukiqej93sd5#L2192

[Borda]

could you check where is the NP_BUILD_DEP installed, I cannot see it in the log nor in the config (probably missing something) so it can be something from a cache...
btw, could you please add pip list before install/testing so it is easier to check what versions are installed/used

[hmaarrfk]

hmm, seems like you were right, I submitted the appropriate PRs to fix the mistakes.

[hmaarrfk]

and now at least it recreates your issue as expected!!!

[stefanv]

Debian running into the same issue: https://salsa.debian.org/science-team/skimage/-/jobs/438666 Trying to figure out how to help them.

[hmaarrfk]

I think the wheel for build number 1 exists in our server. Maybe upload that to PYPi

[stefanv]

Debian is building from source, and seeing the error message shown in the issue description on#4270.

[stefanv]

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=945389