utils.py 文件源码

def validate_jmespath_for_set(expression):
    # Validates a limited jmespath expression to determine if we can set a
    # value based on it. Only works with dotted paths.
    if not expression or expression == '.':
        raise InvalidExpressionError(expression=expression)

    for invalid in ['[', ']', '*']:
        if invalid in expression:
            raise InvalidExpressionError(expression=expression)