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0 pointsabdusco2y ago0 comments

You don't have to do this, though. You can have an entrypoint.py that simply calls `main()` without that if. You don't even need to have modules if you want to, so you can write your functions and call them right after.

0 comments

wredue2y ago

So in python, you need to understand not 1, but at least 3 different versions of “an entry point”, and to you, this is “less cognitive load”?

I had the same issue with Swift. There’s 30 ways to write the exact same line of code, all created by various levels of syntax sugar. Very annoying to read, and even more annoying because engaging different levels of sugar can engage different rulesets.

elevatedastalt2y ago

You don't "need" any of the entry points when you are beginning Python.

print("Hello World") is a perfectly valid and runnable Python code.

And when you are working on a small part of a large code base, you usually don't care about __main__ either. So yes, it's complexity but it's complexity that you don't need to encounter right away.

Python is intuitive off the bat. public static void main(String[] args) is not.

rotifer2y ago

FWIW, in an upcoming version of Java you'll likely be able to do this:

    $ cat Hello.java
    void main() { System.out.println("Hello, world!"); }
    $ java --enable-preview --source 21 Hello.java 2>/dev/null
    Hello, world!
    $

This is currently a preview feature in Java 21 and 22.

int_19h2y ago

Interestingly, C# (which began its life as a sort of Java/Delphi crossover syntactically) agrees. It used to be that you had to write:

   class Program {
      static void Main() {
         Console.WriteLine("...");
      }
   }

But these days, we can just do:

   Console.WriteLine("...");

xigoi2y ago

Python has no concept of an “entry point”. You just run the program from start to end. What’s hard to understand about that?

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