[GitHub] asitstands edited a comment on issue #10951: [MXNET-545] Fix broken cython build

[GitBox <gi...@apache.org>]

asitstands edited a comment on issue #10951: [MXNET-545] Fix broken cython build
URL: https://github.com/apache/incubator-mxnet/pull/10951#issuecomment-398307755
 
 
   A way to check whether or not cython is actually used at runtime is seeing `mx.nd._internal.NDArrayBase`. It must be `mxnet._cy3.ndarray.NDArrayBase` if cython is used and `mxnet._ctypes.ndarray.NDArrayBase` otherwise.
   
   So, if it is desirable, we could run a test like this before the unit tests run.
   ```bash
   if [ "$(echo -e 'import mxnet as mx\nprint(mx.nd._internal.NDArrayBase)' | python)" != "<class 'mxnet._cy3.ndarray.NDArrayBase'>" ]; then
       echo "Error: cython is not used."
       return 1
   fi
   ```

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