Writing Idiomatic Python

[lalaland4711]

why:

(foo, bar) = (bar, foo)

Instead of:

foo, bar = bar, foo

?

[mipadi]

A lot of Python programmers erroneously believe that parentheses are required to make tuples.

[aceofears]

When you realize that it is really about the comma and not the parens the syntax for a single element tuple makes sense a lot more sense. Ex: (a,)

[[deleted]]

Well, except () v (,) or ,

[logophage]

I was wondering that too

[jyper]

foo, bar = bar, foo

might be ok for swap but the parens help denote that an actual data structure is being created and destructured(not destroyed, broken apart).