Peristarkawan

4 ms·

1.
by Peristarkawan 15y ago
I apologize. It was late, and my supply of patience for the day was exhausted.
2.
by Peristarkawan 15y ago
Sigh. No, that is not at all how super works in Python. The equivalent code to that Go function would be: def read_and_write(self): Reader.read(self) Writer.write(self) That is, if you want to get at a particular superc
3.
by Peristarkawan 15y ago
I mistyped. I meant "subclass OrderedCounter to add in the __missing__ method".
4.
by Peristarkawan 15y ago
Not really. The only thing that changed about super in Python 3 is that you can call it with no arguments, which is just a short-hand for the way it was already used in Python 2. Everything in that article applies equally to both Python v
5.
by Peristarkawan 15y ago
The version that I was rewriting: def __init__(self, shapename=None, **kwds): also allows that.
6.
by Peristarkawan 15y ago
That's true. The second one might be better written as: def __init__(self, shapename, **kwds): Or, in Python 3: def __init__(self, *, shapename, **kwds): (making shapename a required keyword-only argument)
7.
by Peristarkawan 15y ago
That's entirely the caller's fault, not the function's. Compare: >>> def init(**kwargs): ... pass ... >>> init(shapename='circle', **{'shapename': 'circle'}) Traceback (most recent call last): File
8.
by Peristarkawan 15y ago
I disagree, that's extremely fragile. It might work for the particular class you are implementing. However, it might cause subclasses of that class to break, since those subclasses will have a different MRO than the current class, and y
9.
by Peristarkawan 15y ago
The reason for using keywords is that there is no guarantee that the next class in the MRO after ColoredShape will be Shape. When the instance is a ColoredShape, it will be, but if ColoredShape is subclassed with a more complex inheritance
10.
by Peristarkawan 15y ago
Okay, I give. What's the markup for posting code snippets on this site?
11.
by Peristarkawan 15y ago
It seems to me that the example of combining built-in dictionary classes is naively optimistic. For starters, OrderedDict, as it happens, does not use super! It calls the dict super-class methods directly. Since dict happens to be the ne
12.
by Peristarkawan 15y ago
Yes, Python's super is more like Dylan's next-method than, say, C#'s super.