Adopt `python -m pip install --upgrade pip` to upgrade pip

[sumedhbala]

Hit this on a Mac running High Sierra, Version .10.13.6 (17G65) """ default: Downloading https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl (1.3MB) default: Installing collected packages: pip default: Found existing installation: pip 8.1.1 default: Not uninstalling pip at /usr/lib/python2.7/dist-packages, outside environment /usr default: Successfully installed pip-18.0 default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main default: Traceback (most recent call last): default: File "/usr/bin/pip", line 9, in default:
default: from pip import main default: ImportError default: : default: cannot import name main The SSH command responded with a non-zero exit status. Vagrant assumes that this means the command failed. The output for this command should be in the log above. Please read the output to determine what went wrong. """

s/pip install --upgrade pip/python -m pip install --upgrade pip/ in pg_config.sh seems to make it work for me. Also Reading posts like https://stackoverflow.com/questions/25749621/whats-the-difference-between-pip-install-and-python-m-pip-install tell you to use python -m pip to install/update packages

[out-running-27]

Thanks changing: pip install --upgrade pip -> python -m pip install --upgrade pip seemed to work for me as well

[javenschuetz]

Thanks for posting, it worked.