Scope troubles with a swap function

Duncan Booth duncan at NOSPAMrcp.co.uk
Fri Aug 10 12:24:53 EDT 2001


"Matthew D. Wood" <woodm at equire.com> wrote in 
news:mailman.997452856.7709.python-list at python.org:

> How do you make a swap function? 
> 
The easy way:

a, b = b, a

and of course you aren't restricted to two values:

a, b, c = b, c, a

If you are *really* sure you want a function that swaps its arguments, try:

def swap(a, b): return b, a
a, b = swap(a, b)

Python isn't C. Its better.

-- 
Duncan Booth                                             duncan at rcp.co.uk
int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3"
"\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure?



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