Convert Python attributes from snake case to lower camel case. This gist might be useful when you use an application supporting GraphQL like Ariadne and Graphene.

snake_to_kebab.py

def snake_to_kebab(identifier):
    if isinstance(identifier, list):
        container = range(len(identifier))
        for element in container:
            snake_to_kebab(identifier[element])

    elif isinstance(identifier, dict):
        container = [key for key in dict.keys()]
        for element in container:
            snake_to_kebab(getattr(identifier, element))
            #
            if _is_snake(element):
                _set_kebab(identifier, element)

    elif hasattr(identifier, "__dict__"):
        # attr except private or protected
        container = [attr for attr in identifier.__dict__.keys() if attr[0] != "_"]
        for element in container:
            snake_to_kebab(getattr(identifier, element))
            #
            if _is_snake(element):
                _set_kebab(identifier, element)


def _is_snake(attr):
    words = attr.split("_")
    # private or protected attribute.
    # like... _attr, __attr
    if attr[0] == "_":
        return False
    elif len(words) == 1:
        return False
    # PEP 8 conventional
    # list_, str_
    elif len(words) == 2 and words[-1] == "":
        return False
    else:
        return True


def _set_kebab(identifier, element):
    snake = element
    kebab = _snake_to_kebab(element)
    setattr(identifier, kebab, getattr(identifier, snake))
    delattr(identifier, snake)


def _snake_to_kebab(attr):
    upper_kebab_case = "".join(x.capitalize() for x in attr.split("_"))
    lower_kebab_case = upper_kebab_case[0].lower() + upper_kebab_case[1:]
    return lower_kebab_case