【Python】通过装饰器实现 docstring 中使用变量

def docstring_decorator(s):
    """动态修改docstring装饰器"""

    def _decorator(obj):
        obj.__doc__ = str(s)
        return obj

    return _decorator

例子

a = "test"
@docstring_decorator(f"a={a}")
def f():
    pass
print(f.__doc__)  # a=test