python-venv

问题 As part of the compilation step for a new python version, I fetch and run get-pip.py, to have the latest pip installed next to the python executable: $ /opt/python/3.7.0/bin/python --version Python 3.7.0 $ /opt/python/3.7.0/bin/pip --version pip 18.0 from /opt/python/3.7.0/lib/python3.7/site-packages/pip (python 3.7) I have 25 such versions under /opt/python , although I mostly use the five latest versions of each major.minor version that is not EOL. To setup an invironment I used to run

问题 (py36venv) vagrant@pvagrant-dev-vm:/vagrant/venvs$ pip3 install pep8 pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available. Collecting pep8 Could not fetch URL https://pypi.python.org/simple/pep8/: There was a problem confirming the ssl certificate: Can\'t connect to HTTPS URL because the SSL module is not available. - skipping Could not find a version that satisfies the requirement pep8 (from versions: ) No matching distribution found for

问题 Python 3.3 includes in its standard library the new package venv . What does it do, and how does it differ from all the other packages that seem to match the regex (py)?(v|virtual|pip)?env ? 回答1: PyPI packages not in the standard library: virtualenv is a very popular tool that creates isolated Python environments for Python libraries. If you're not familiar with this tool, I highly recommend learning it, as it is a very useful tool, and I'll be making comparisons to it for the rest of this