[ python-Feature Requests-846553 ] Addition to break and continue

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Feature Requests item #846553, was opened at 2003-11-21 07:48
Message generated for change (Comment added) made by rhettinger
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Category: Python Interpreter Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Alexander Rødseth (alexanro)
>Assigned to: Guido van Rossum (gvanrossum)
Summary: Addition to break and continue

Initial Comment:
It would be great if one could use "break for", "break
while", "continue for" or "continue while".

A silly example:

for i in range(100):
    counter = 0
    while 1+1 == 2:
        counter += 1
        if counter > 5:
            break for

"break for" should here jump out of the for-loop, as
opposed to just "break" that would jump out of just the
while loop. Using "break for" and friends will make
code a lot more readable and explicit, and avoid using
exception throwing and catching, and other acrobatics.

I believe this suggestion is in sync with the Python
Design guidelines.

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>Comment By: Raymond Hettinger (rhettinger)
Date: 2004-03-13 16:41

Message:
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Guido, I recommend against accepting these forms which are
out of sync with the way the rest of the world uses break,
continue, try, and except.

The proposal is also thin on use cases and does not fit
comfortably with the current implementation.

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Comment By: Michael Dubner (dubnerm)
Date: 2003-11-21 20:43

Message:
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What you will do to exit from outer of two for's from inside
inner?

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