bbsim build fails: python module dependency

/08:03:56 Collecting funcparserlib 08:03:56 Downloading funcparserlib-0.3.6.tar.gz (30 kB) 08:03:57 Preparing metadata (setup.py): started 08:03:57 Preparing metadata (setup.py): finished with status 'error' 08:03:57 ERROR: Command errored out with exit status 1: 08:03:57 command: /w/workspace/verify_bbsim_unit-test/go/src/github.com/opencord/bbsim/docs/doc_venv/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-5w8eos60/funcparserlib_8004a9540c8d4d93a4fc5be2cfc48fff/setup.py'"'"'; __file__='"'"'/tmp/pip-install-5w8eos60/funcparserlib_8004a9540c8d4d93a4fc5be2cfc48fff/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-sxxt1274 08:03:57 cwd: /tmp/pip-install-5w8eos60/funcparserlib_8004a9540c8d4d93a4fc5be2cfc48fff/ 08:03:57 Complete output (1 lines): 08:03:57 error in funcparserlib setup command: use_2to3 is invalid. 08:03:57 ---------------------------------------- 08:03:57 WARNING: Discarding https://files.pythonhosted.org/packages/cb/f7/b4a59c3ccf67c0082546eaeb454da1a6610e924d2e7a2a21f337ecae7b40/funcparserlib-0.3.6.tar.gz#sha256=b7992eac1a3eb97b3d91faa342bfda0729e990bd8a43774c1592c091e563c91d (from https://pypi.org/simple/funcparserlib/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output. 08:03:57 Downloading funcparserlib-0.3.5.tar.gz (33 kB) 08:03:57 Preparing metadata (setup.py): started 08:03:57 Preparing metadata (setup.py): finished with status 'done' 08:03:57 Collecting six/ code placeholder