[Tutor] Would somebody kindly...

[Clayton Kirkwood]

Explain this double speak(>:

[pair for pair in values if key == pair[0]]

 

I understand the 'for pair in values'. I assume the first 'pair' creates the
namespace (although I am not sure how Python knows it's a tuple yet). I
think the outer [] make the line a comprehension ( If so, I don't seem to
get how/why a comprehension works), and probably make the line either a
tuple or list. The comprehension seems to act as a subroutine or macro( yes
I know those two words are meaningless in Python). I definitely am missing
the full meaning of the if statement. The example comes courtesy of Alan.

 

Thanks,

 

Clayton

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