pants

doesn't play well with `pyenv`: say both python

3.6

and

3.7

are installed via

pyenv

and

3.6

is configured to be used;

command -v python3.7

would not die and

pants

would be tricked to use

python 3.7

. Then

pants

would fail with:

circleci@ip-10-100-196-106:~/project$ python3.7
pyenv: python3.7: command not found

The `python3.7' command exists in these Python versions:
  3.7.0

So the output you show is from running

python3.7

(which fails) and not

./pants

. Would you mind filing an issue with a few more details? Good ones always include the

./pants --version

, The full pants command and its console output and a copy of your

pants.ini

.