10 def _get_function_source(func):  argument
11     func = inspect.unwrap(func)
12     if inspect.isfunction(func):
13         code = func.__code__
15     if isinstance(func, functools.partial):
16         return _get_function_source(func.func)
17     if isinstance(func, functools.partialmethod):
18         return _get_function_source(func.func)
22 def _format_callback_source(func, args):  argument
23     func_repr = _format_callback(func, args, None)
24     source = _get_function_source(func)
44 def _format_callback(func, args, kwargs, suffix=''):  argument
45     if isinstance(func, functools.partial):
47         return _format_callback(func.func, func.args, func.keywords, suffix)
49     if hasattr(func, '__qualname__') and func.__qualname__:
50         func_repr = func.__qualname__
51     elif hasattr(func, '__name__') and func.__name__:
52         func_repr = func.__name__
54         func_repr = repr(func)