[docs] [issue13549] Incorrect nested list comprehension documentation

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

Isn't the documentation that you refer to about *nested* list comprehensions, rather than list comprehensions with multiple 'for' clauses?

E.g.,:

    [number for row in matrix for number in row]

is not a nested list comprehension:  it's merely a list comprehension with two 'for' clauses.  But:

    [[number for number in row] for row in matrix]

*is* a nested list comprehension (a list comprehension for which the initial expression is itself a list comprehension), and there the advice to read from right to left seems to make sense to me.

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nosy: +mark.dickinson

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