Getting virtual enviroments and keeping packages all in ship shape I found hard. That's before I found pipenv which to me is similar to NPM and package.json
Clone / create project repository:
$ cd myproject
Install from Pipfile, if there is one:
$ pipenv install
Or, add a package to your new project:
$ pipenv install <package>
This will create a Pipfile if one doesn’t exist. If one does exist, it will automatically be edited with the new package you provided.
Next, activate the Pipenv shell:
$ pipenv shell
$ python --version
This will spawn a new shell subprocess, which can be deactivated by using exit.
$ pipenv install requests~=1.2Pipenv will install version 1.2 and any minor update, but not 2.0.
This will update your Pipfile to reflect this requirement, automatically