No module named 'abpytools.core.formats.chain_pb2'

[m-abyzov]

getting this error during install via pip or source:

======================================================================
ERROR: features_tests_composition (unittest.loader._FailedTest)

ImportError: Failed to import test module: features_tests_composition
Traceback (most recent call last):
File "/home/misha/anaconda3/lib/python3.7/unittest/loader.py", line 154, in loadTestsFromName
module = import(module_name)
File "/home/misha/internship_code/AbPyTools/tests/features_tests_composition.py", line 2, in
from abpytools import ChainCollection
File "/home/misha/internship_code/AbPyTools/abpytools/init.py", line 1, in
from .core import *
File "/home/misha/internship_code/AbPyTools/abpytools/core/init.py", line 4, in
from .chain_collection import ChainCollection
File "/home/misha/internship_code/AbPyTools/abpytools/core/chain_collection.py", line 18, in
from .utils import (json_ChainCollection_formatter, pb2_ChainCollection_formatter, pb2_ChainCollection_parser,
File "/home/misha/internship_code/AbPyTools/abpytools/core/utils.py", line 1, in
from abpytools.core.formats.utils import get_protobuf_numbering_scheme, get_numbering_scheme_from_protobuf
File "/home/misha/internship_code/AbPyTools/abpytools/core/formats/init.py", line 1, in
from .chain_pb2 import Chain as ChainProto
ModuleNotFoundError: No module named 'abpytools.core.formats.chain_pb2'

[merkys]

This happens when protobuf is not installed. I had to install protobuf Python package and protoc compiler. On Debian I had to install python3-protobuf and protobuf-compiler packages.