Visual Studio Code pylint: Unable to import ‘protorpc’

I’m using pylint in Visual Studio Code to develop a Google App Engine (GAE) Cloud Endpoint API in Python. I’m unable to resolve a lint error. I don’t know what’s causing the error, but at a guess, pylint cannot find the protorpc library?

The recommended fix in Troubleshooting Linting is to configure workspace settings to point to fully qualified python executable. I have done this, but the lint error remains.

protorpc itself is installed to:

~/google-cloud-sdk/platform/google_appengine/lib/protorpc-1.0/protorpc

…and this contains the remote.py module that cannot be imported:

__init__.py             generate_python.py      protojson.py            transport.py
definition.py           google_imports.py       protourlencode.py       util.py
descriptor.py           message_types.py        registry.py             webapp
generate.py             messages.py             remote.py               wsgi
generate_proto.py       protobuf.py             static

I’ve added this path to $PYTHONPATH (along with the kitchen sink):

export GOOGLE_CLOUD_SDK=~/google-cloud-sdk
export APPENGINE_PATH=$GOOGLE_CLOUD_SDK/platform/google_appengine

export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK
export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK/lib
export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK/lib/googlecloudsdk
export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK/lib/googlecloudsdk/api_lib
export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK/platform/google_appengine/lib
export PYTHONPATH=$PYTHONPATH:$GOOGLE_CLOUD_SDK/platform/google_appengine/lib/protorpc-1.0/protorpc

The application runs locally and also when deployed, so this appears to be just a lint error, but it’s frustrating that I can’t solve it.

Using third-party libraries states:

The Python runtime in the standard environment includes the Python standard library, the App Engine libraries, and a few bundled third-party packages.

Because of this, I assumed ‘the App Engine libraries’ includes protorpc, but I’m unsure. Moreover, Adding the Cloud Endpoints Frameworks library to the sample API only requires google-endpoints be installed to the app’s lib directory:

pip install -t lib google-endpoints --extra-index-url=https://gapi-pypi.appspot.com/admin/nurpc-dev --ignore-installed

My point is, I don’t think I’ve not installed something, and I don’t think I’m missing anything in my (web) app’s lib directory.

Answer

Open the settings file of your Visual Studio Code (settings.json) and add the library path to the "python.autoComplete.extraPaths" list.

"python.autoComplete.extraPaths": [
    "~/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2",
    "~/google-cloud-sdk/platform/google_appengine",
    "~/google-cloud-sdk/lib",
    "~/google-cloud-sdk/platform/google_appengine/lib/endpoints-1.0",
    "~/google-cloud-sdk/platform/google_appengine/lib/protorpc-1.0"
],

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Answer