Interactive prompt for variables that should be set at runtime
Varlet lets you prompt for variables at runtime, and saves them to a variables module.
pip install varlet
In your settings.py file add:
`python from varlet import variable `
whenever you declare a variable that could change depending on the environment, use:
`python # It is OK to make this True if you are in dev DEBUG = variable("DEBUG", default=False) `
If this “DEBUG” variable is not defined in the variables module (somewhere in your python path), the user is prompted to enter a Python expression to set it.
When the prompt is displayed, the comments directly above the call to
variable() are displayed, and the prompt has a default value as specified by
## Implementation Details
varlet assumes there is a
variables module located somewhere in your Python
path. If it is not found, it will attempt to create one based on the location
When a variable is set to a value, varlet will eval the value (to make sure it
is valid python), and then perform
ast.literal_eval(repr(value)) to ensure that the value
has a valid representation that can be written to a file. The
then appended to the end of the
variables module (along with any comments
associated with the value).
If STDIN is not a tty-like interface, then a KeyError is raise if the variable is not set in the variables module.