Translate this to python?

Peter Hansen peter at
Tue Jan 3 21:29:14 EST 2006

KraftDiner wrote:
> I'm porting a routing from C++ to python.
> There is a complex for loop that I don't know how to code in python
> for (i = nPoints-1, j = 0; j < nPoints; i = j, j++)

i = nPoints - 1
j = 0
while j < nPoints:
     # do stuff
     i = j
     j += 1

For loops in C aren't really complicated.  They have stuff that happens 
before the loop is entered, a test that occurs at the top of the loop 
before each pass, and stuff that happens at the end of the loop just 
after the body has executed.  Using a while loop in Python makes it 
mechanical to translate any such C for loop...


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