def iterable_validator()

in src/dynamodb_encryption_sdk/internal/validators.py [0:0]

• 10 lines of code
• 4 McCabe index (conditional complexity)

def iterable_validator(iterable_type, member_type):
    """Validator for ``attrs`` that performs deep type checking of iterables."""

    def _validate_tuple(instance, attribute, value):
        # pylint: disable=unused-argument
        """Validate that a dictionary is structured as expected.

        :raises TypeError: if ``value`` is not of ``iterable_type`` type
        :raises TypeError: if ``value`` members are not all of ``member_type`` type
        """
        if not isinstance(value, iterable_type):
            raise TypeError('"{name}" must be a {type}'.format(name=attribute.name, type=iterable_type))

        for member in value:
            if not isinstance(member, member_type):
                raise TypeError(
                    '"{name}" members must all be of type "{type}"'.format(name=attribute.name, type=member_type)
                )

    return _validate_tuple