You will need to install the following:
- pipenv (dependency manager + virtualenv) - https://pipenv.readthedocs.io/en/latest/
- virtualenvwrapper (wrapper utility around virtualenv) - https://virtualenvwrapper.readthedocs.io/en/latest/
Pipenv is a dependency manager, similar to NPM, and writes to a file called a Pipfile. The Pipfile tracks
any external packages you may have added to your project when you use its equivalent command to pip install,
pipenv install. Pipenv will also only write to your current virtual environment, meaning that if
one dependency breaks another, you can easily delete that virtual environment and start over (as opposed
to manually going through your hard drive/SSD and deleting python modules).
Virtualenvwrapper is a set of extensions that help you create, update, delete virtualenv's. It's not essential, but I don't know how to do it conventionally with just virtualenv. It looks like you can actually create a virutalenv with pipenv as well, though the tutorial I went through just used virtualenvwrapper.
To start a development server:
- make a new virtualenv
- run
pipenv run python setup.py - go to localhost:5000
Heroku is our hosting service, and has various commands that make it easy to debug and interact with prod environment systems.
To run a command on a Heroku remote host, use heroku run <command>, where command is the command you
would run locally in terminal/bash, etc.
For example, locally one may want to run flask shell to work with imported values and ORM sqlalchemy.
Asking Heroku to do the same via heroku run flask shell will perform the same command but on our remote host.
This is good, since we can easily fix things unrelated to src code through local console!
app.config['key']