The @wraps decorator applies the update_wrapper() function to preserve a few attributes of a wrapped function. In general, this does everything we need by default. This function copies a specific list of attributes from the original function to the resulting function created by a decorator. What's the specific list of attributes? It's defined by a module global.
The update_wrapper() function relies on a module global variable to determine what attributes to preserve. The WRAPPER_ASSIGNMENTS variable defines the attributes that are copied by default. The default value is this list of attributes to copy:
('__module__', '__name__', '__qualname__', '__doc__', '__annotations__')
It's difficult to ...
