Python中如何将字符串转换成可调用的方法

字符串转化成方法

import importlib
 
def find_method_by_str(method_path):
    """通过字符串，寻找方法"""
    if not method_path:
        return None
    methods = method_path.split(".")
    _module = importlib.import_module(".".join(methods[:-1]))
    _method = getattr(_module, methods[-1], None)
    if not callable(_method):
        return None
    return _method

方法转存字符串

Python3的方式

def get_caller_location(caller):
    location = "{}.{}".format(caller.__module__, caller.__qualname__)
    return location

Python2的方式

import inspect

def get_caller_location(caller):
    if inspect.isclass(caller) or inspect.isfunction(caller):
        location = "{}.{}".format(caller.__module__, caller.__name__)
    elif inspect.ismethod(caller):
        fn_cls = caller.im_class
        location = "{}.{}.{}".format(caller.__module__, fn_cls.__name__, caller.__name__)
    else:
        raise TypeError("not support type {}".format(type(caller)))
    return location