Duplo ArgType

This module contains the customizations to the Argparse library.

`Arg`

Bases: NewType

Duplo ArgType

A custom type for defining arguments in Duplo commands as annotations. This extends the NewType class so type hinting will work as expected and we get truly new types. Each instance of this class will be used to define a command line argument for a function. The values contained are the values needed for the argparse.ArgumentParser.add_argument method.

Example

Make a reusable arg type called foo

FOO = Arg("foo", "-f", help="A foo arg")

Parameters:

Name	Type	Description	Default
`name`	`str`	The name of the argument.	required
`type`	`Any`	The type of the argument.	`str`
`flags`	`List[str]`	The flag to use for the argument.	`()`
`action`	`str`	The action to use for the argument.	`None`
`nargs`	`str`	The number of arguments to use for the argument.	`None`
`const`	`str`	The constant to use for the argument.	`None`
`default`	`any`	The default value to use for the argument. This can be overriden by the default value of the arg in the function definition.	`None`
`choices`	`List[any]`	The choices to use for the argument.	`None`
`required`	`bool`	Whether the argument is required.	`None`
`help`	`str`	The help text to use for the argument.	`None`
`metavar`	`tuple`	The metavar to use for the argument.	`None`
`dest`	`str`	The destination to use for the argument.	`None`
`version`	`bool`	The version to use for the special version arg.	`None`
`env`	`str`	The environment variable to use for the argument.	`None`

`JsonPatchAction`

Bases: _AppendAction

Json Patch Action

A custom argparse action that translates JSON Patch operations from the command line arguments.

`YamlAction`

Bases: Action

Yaml Action

A custom action for argparse that loads a yaml file into a python object. This is intended to be used alongside the File type in argparse. This way the file type (yaml) is enforced.