How to jump out of nested 'for'-loops?

D'Arcy J.M. Cain darcy at druid.net
Tue Sep 29 05:45:43 CEST 2009


On Mon, 28 Sep 2009 22:09:37 -0500
Peng Yu <pengyu.ut at gmail.com> wrote:
> I want some command to jump out of nested loop. I'm wondering what is
> the most convenient way to do so in python.

Forget about jumping out of a loop. Put your loop into a function and
simply return.  Much cleaner and clearer.

> for i in range(10):
>   print "i = ", i
>   for j in range(10):
>     if i*10 + j == 50:
>       print i*10 + j
>       break # I want to jump out of the loops.

def myfunc(li, lim, mul):
  for i in li:
    print "i = ", i
    for j in range(10):
      if i*mul + j == lim:
        return i*mul + j

print myfunc(range(10), 50, 10)

-- 
D'Arcy J.M. Cain <darcy at druid.net>         |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.



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