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From: rbowman <bowman@montana.com>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Why Python When There Is Perl?
Date: 21 Mar 2024 06:01:16 GMT
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On Wed, 20 Mar 2024 19:54:29 -0400, DFS wrote:

> Just learn Python and C side-by-side.  Write a routine in one and
> duplicate it in the other.  It's enjoyable and educational.

Side by side Python and C# is educational too. The initial implementation 
as in Python, a simple query of the iTunes API. I grabbed the artist, 
track, and time and put them in a class. Sorting was awkward since I 
didn't want the time to be used.

When I moved to C# I created a similar class using the IEquitable and 
IComparable interfaces that allowed me to define Equals and CompareTo to 
only take into account some of the instance attributes. 

Going back to Python, how could I do the same. The answer was dunders.

class Item:
    def __init__(self, artist, track, time):
        self.artist = artist
        self.track = track
        self.time = time

    def __eq__(self, other):
        if (
            self.artist.casefold() == other.artist.casefold()
            and self.track.casefold() == other.track.casefold()
        ):
            return True
        else:
            return False

    def __lt__(self, other):
        return self.artist < other.artist or self.track < other.track

    def __gt__(self, other):
        return self.artist > other.artist or self.track > other.track


So Python allowed me to rapidly develop the basic algorithm that I could 
easily implement in C#. Knowing C# a little better I had something to 
bring back to learn a new trick in Python.