[Python-Dev] Conditional Expression Resolution (original) (raw)

Tim Peters tim.peters at gmail.com
Fri Sep 30 16:59:21 CEST 2005

[Guido]

After a long discussion I've decided to add a shortcut conditional expression to Python 2.5.

The syntax will be A if C else B

...

The priorities will be such that you can write

... x = A if C else B if D else E

I assume this groups as

A if C else (B if D else E)

rather than as

(A if C else B) if D else E

? So that C is evaluated first, and if C is true D isn't evaluated at all.

...

Flames, pleas to reconsider, etc., to /dev/null.

Compared to the postfix

A then C if B

it's a positive delight.

Congratulations gracefully accepted.

Congratulations gracefully tendered.

It's still my language! :-)

If that was in doubt, you just proved it .

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