error "ImportError: No module named google.protobuf.internal"

[dinosg]

when trying to run the example
python2.7 main.py --driver=local --method=GPEIOptChooser --method-args=noiseless=1 ../examples/braninpy/config.pb

Have removed and reinstalled python2.7-protobuf, protobuf, you name it (note on my machine, python3 is the default, but results in an error if I just try to use it instead, looks like Spearmint is python2.7)

Any ideas?

[younes-abid]

try using virtualenvs with python2.7
http://docs.python-guide.org/en/latest/dev/virtualenvs/

$ pip install virtualenv
$ source venv/bin/activate
$ pip install protobuf

run your tests