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test_cross_engine_read_write_netcdf4 is broken on Python 3 due to some sort of upstream change #535

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shoyer opened this issue Aug 17, 2015 · 2 comments

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@shoyer
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shoyer commented Aug 17, 2015

This has started causing test failures on master.

I had trouble tracking this down, but it seems to be related to a build of hdf5, netCDF4 or the underlying libraries which just became available on conda.

In case anyone else has time for it:
This build worked: https://travis-ci.org/xray/xray/jobs/75633366
This build failed: https://travis-ci.org/xray/xray/jobs/75777788

For now, let's just skip the test and come back to this later.

Possibly related: Unidata/netcdf4-python#448

@jhamman
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jhamman commented Aug 17, 2015

Here's a diff of the versions that went into each build environment:

$ diff -y worked.txt broken.txt
    curl:            7.38.0-0                         |     curl:            7.43.0-1         
    hdf5:            1.8.14-0                         |     hdf5:            1.8.15.1-1       
    libnetcdf:       4.3.2-1                          |     krb5:            1.13.2-0         
    netcdf4:         1.1.8-np19py34_0                 |     libnetcdf:       4.3.3.1-1        
                                                      >     netcdf4:         1.1.9-np19py34_0 

given that the failure is in an I/O test, it seems likely that this is coming from netcdf4.

@QuLogic
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QuLogic commented Mar 8, 2017

See #1298, where I changed Python 2.7 CI to install h5netcdf as well (it seemed to be missing.) This test doesn't work on Python 2 either right now.

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