Method get_parameter_source

src/click/core.py:937–953

Get the source of a parameter. This indicates the location from which the value of the parameter was obtained. This can be useful for determining when a user specified a value on the command line that is the same as the default value. It will be :attr:`~click.core.Pa

(self, name: str)

        self._parameter_source[name] = source

    def get_parameter_source(self, name: str) -> ParameterSource | None:
        """Get the source of a parameter. This indicates the location
        from which the value of the parameter was obtained.

        This can be useful for determining when a user specified a value
        on the command line that is the same as the default value. It
        will be :attr:`~click.core.ParameterSource.DEFAULT` only if the
        value was actually taken from the default.

        :param name: The name of the parameter.
        :rtype: ParameterSource

        .. versionchanged:: 8.0
            Returns ``None`` if the parameter was not provided from any
            source.
        """
        return self._parameter_source.get(name)


class Command: