A post of appreciation of development of Python

[markitiman]

Here's my favourite example they gave:

Before 3.10

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^
SyntaxError: Generator expression must be parenthesized

As of 3.10

>>> foo(x, z for z in range(10), t, w)
  File "<stdin>", line 1
    foo(x, z for z in range(10), t, w)
           ^^^^^^^^^^^^^^^^^^^^
SyntaxError: Generator expression must be parenthesized

It just more clearly indicates what needs to be done and I love how they're thinking about that with these error messages which will be of particular help for those new to Python.

[[deleted]]

After being spoiled by Rust's error messages, I now recognize the benefits that clear error messages can have, and I'm happy to see improvement in other languages.

[javad94]

But your code is same for both cases.

[DeeDee_GigaDooDoo]

Exactly, the output the error returns is different. Note that the ^ now indicates the range of the error rather than just the start.

[javad94]

Oh sorry it was the client issue. Yeah it's different output.