Comment 2 for bug 1819027

Update. If I install from pypi instead of github source, it works

pipenv install --skip-lock --three
pipenv install tosca-parser
cd .venv/bin
pipenv run python ./tosca-parser --template-file=../../toscaparser/extensions/nfv/tests/data/tosca_helloworld_nfv.yaml

version: tosca_simple_profile_for_nfv_1_0_0

description: Template for deploying a single server with predefined properties.

nodetemplates:
 VNF1
 VDU1
 CP1
 PrivateNetwork

I don't know if this is still relevant. Please delete if not.