types.MethodType 与 functools.partial
这是我的另一个问题的延续（pythonclosure + oop）。在回答这个问题时，Winston Ewert 建议我使用 functools.partial 而不是 types.MethodType。
所以现在我的问题是：两者有什么区别？为什么认为 functool 方式更好？
附：我已经成功地使用 functools.partial 来完成我的关闭，它确实感觉很酷。 :-)
This is a continuation of my other question (python closure + oop). In the answer to that question, Winston Ewert suggested me to use functools.partial instead of types.MethodType.
So now my question is: what's the difference between the two? Why is the functool way considered better?
ps. I've managed to use functools.partial for my closure and it did feel cool. :-)
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从实际的角度来看，没有太大区别。 Partial 会柯里化任意数量的参数（在本例中为 1）；实例方法会将 self 实例（无论发生什么）传递给包装函数；他们在做同样的事情！
不同之处在于，他们在某种程度上记录了自己；在您链接的问题中；可调用的
closure不是任何东西的方法；它是一个常规函数，由A的方法返回；碰巧主体将B的实例视为第一个参数；但这还不足以使其成为 B 的“方法”。所以这只是风格问题。您正在做的事情看起来更像
functools.partial，因此您应该使用它，即使您可以使用types.MethodType实现相同的效果From a practical stand point, there isn't a whole lot of difference. Partial will curry any number of arguments (in this case, 1); an instancemethod will pass the self instance (whatever that happens to be) to the wrapped function; They're doing the same thing!
The difference is that they somewhat document themselves; In your linked question; the
closurecallable isn't a method of anything; it's a regular function, returned by a method ofA; It happens that the body sees an instance ofBas the first argument; but that's not enough to make it a "method" of B.So it's just a matter of style. You're doing something that looks more like
functools.partial, and so you should use that, even though you can achieve the same effect withtypes.MethodType