error when pip install in conda

[iT-Boyer]

conda env
python 3.7

pip install  --upgrade "knowledge-repo[all]"

Failed to build knowledge-repo flask-login flask-principal flask-mail sqlalchemy inflection blinker alembic regex Mako
Installing collected packages: regex, dateparser, cooked-input, click, itsdangerous, werkzeug, flask, flask-login, blinker, flask-principal, flask-mail, sqlalchemy, Flask-SQLAlchemy, Mako, python-editor, alembic, Flask-Migrate, gunicorn, inflection, pillow, knowledge-repo
    Running setup.py install for regex ... error
    ERROR: Command errored out with exit status 1:
     command: /Users/admin/anaconda3/envs/qq/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/54/dj483jpn7k5_bfwlglg538vw0000gn/T/pip-install-tb0ohbg4/regex/setup.py'"'"'; __file__='"'"'/private/var/folders/54/dj483jpn7k5_bfwlglg538vw0000gn/T/pip-install-tb0ohbg4/regex/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/54/dj483jpn7k5_bfwlglg538vw0000gn/T/pip-record-acauh54w/install-record.txt --single-version-externally-managed --compile
         cwd: /private/var/folders/54/dj483jpn7k5_bfwlglg538vw0000gn/T/pip-install-tb0ohbg4/regex/
    Complete output (50 lines):
    running install
    running build
...

[bulam]

Sorry about the delay. Are you still running into this issue? Have you tried installing with a different virtual env?

[naoyak]

@bulam I just ran into this too. Assuming this is on Mac OS the problem is that the regex package doesn't have Mac wheels available for all Python versions. We can probably track down the dependency somehow, but one option is to install regex through conda.

[bulam]

Thanks for this solution @naoyak ! Let us know if this works for you @iT-Boyer I'm going to close this issue, but feel free to reopen if this doesn't resolve the error.