importError: failed to import enum_type_wrapper

[buemi]

Hi, I receive the following error when I execute the run-flownet script:

_flownet2/python/caffe/proto/caffe_pb2.py", line 6, in from google.protobuf.internal import enum_typewrapper ImportError: No module named google.protobuf.internal

Any idea?

[nikolausmayer]

Try installing libprotobuf-dev, protobuf-compiler and python-protobuf if they are not already installed.

[buemi]

Yes, all the packages are installed, but the error persists.

[nikolausmayer]

Ok, if those packages are installed, then your $PYTHONPATH might not include the path to the module.

• What does locate google/protobuf/internal/__init__ print?
• What does echo $PYTHONPATH print?

[buemi]

It's quite strange:

$ echo $PYTHONPATH /home/buemi/home/buemi/Antonio/flownet2/python/caffe/python:/usr/local/lib/python2.7/dist-packages/pip:

There is a double home location in the path! Which is the script where I have to look in order to correct it?

[nikolausmayer]

Hm, there is this line in set-env.sh: CAFFE_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

Maybe this is misbehaving?

[buemi]

But what is the correct caffe path? I found several "caffe" folders:

• flownet2/.build_release/python/caffe (empty)
• flownet2/src/caffe
• flownet2/python/caffe

but noone has a subfolder named "python"

[nikolausmayer]

It should be flownet2/python. The caffe within that folder is the module loaded by import caffe in Python.

[buemi]

"import caffe" provides the original error: _>>> import caffe Traceback (most recent call last): File "", line 1, in File "/home/buemi/Antonio/flownet2/python/caffe/init.py", line 1, in from .pycaffe import Net, SGDSolver, NesterovSolver, AdaGradSolver, RMSPropSolver, AdaDeltaSolver, AdamSolver File "/home/buemi/Antonio/flownet2/python/caffe/pycaffe.py", line 15, in import caffe.io File "/home/buemi/Antonio/flownet2/python/caffe/io.py", line 8, in from caffe.proto import caffe_pb2 File "/home/buemi/Antonio/flownet2/python/caffe/proto/caffe_pb2.py", line 6, in from google.protobuf.internal import enum_typewrapper ImportError: No module named google.protobuf.internal

Have I to set the protobuf path somewhere?

[nikolausmayer]

Depends — what is the location of your protobuf (locate google/protobuf/internal/__init__)?

[buemi]

It seems to be here: /usr/local/lib/python2.7/dist-packages/google/protobuf/internal/init.py /usr/local/lib/python2.7/dist-packages/google/protobuf/internal/init.pyc

[nikolausmayer]

I see. Well, since your $PYTHONPATH only contains /usr/local/lib/python2.7/dist-packages/pip, I'd try adding /usr/local/lib/python2.7/dist-packages to it ;)

[buemi]

It seems I solved by installing protobuf locally. Thanx

[nikolausmayer]

Fair enough :grin: