Overview¶
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Cloup (= Click + groups) contains a set of Click extensions that enable you to:
define option groups with a clean API;
define constraints, including conditional constraints, on any group of parameters (e.g.
mutually_exclusive,RequireAtLeast(1)etc.);(optionally) show an auto-generated description of defined constraints in the command help;
organize the subcommands of a
MultiCommandin multiple help sections.
These features are implemented in three “mixins” following the same pattern of click-contrib extensions (cooperative multiple inheritance). For ease of use, Cloup also provides:
its own versions of Click commands classes, obtained by mixing Click classes with the above mentioned mixins;
its own versions of Click command decorators, for creating such commands.