build mxnet from source and get ImportError: cannot import name 'NDArrayHandle'

[ziqi-wlb]

• I build mxnet from source, here's the steps:

git clone --recursive https://github.com/apache/incubator-mxnet
cd incubator-mxnet
cp make/config.mk ./
# change config.mk to set: USE_OPENCV=1 USE_BLAS=openblas USE_CUDA=1 USE_CUDA_PATH=/usr/local/cuda USE_CUDNN=1 USE_DIST_KVSTORE=1 USE_NCCL=0 
make -j $(nproc)
cd python/ && pip install --user -e .

• I got ImportError: cannot import name 'NDArrayHandle when I test mxnet in python.
  from mxnet.kvstore import NDArrayHandle

• Then I list the kvstore class:

1. In release mxnet-cu100:

>>> import mxnet.kvstore as kv
>>> dir(kv)
['KVStore', 'KVStoreHandle', 'NDArray', 'NDArrayHandle', '_LIB', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '_ctype_dict', '_ctype_key_value', '_get_kvstore_server_command_type', '_ndarray_cls', '_updater_wrapper', 'absolute_import', 'array', 'c_array', 'c_array_buf', 'c_handle_array', 'c_str', 'c_str_array', 'check_call', 'create', 'ctypes', 'mx_uint', 'opt', 'pickle', 'py_str', 'set_kvstore_handle', 'string_types']

2. In my build mxnet:

>>> dir(kv)                                                                                                                     │·
['KVStore', 'KVStoreBase', 'KVStoreServer', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__pa│·
ckage__', '__path__', '__spec__', 'base', 'create', 'kvstore', 'kvstore_server']

I want to know why it happen and what's the default config.mk of the released mxnet wheel.

[samskalicky]

@apeforest any idea on kvstore?