On Fri, May 22, 2009 at 11:17 AM, Joel Ross <jo...@cognyx.com> wrote: > Hi all, > > I have this piece of code > > class progess(): > > def __init__(self, number, char): > > total = number > percentage = number > while percentage > 0 : > percentage = int(number/total*100) > number-=1 > char+="*" > print char > > progess(999, "*") > > Just wondering if anyone has any ideas on way the percentage var gets set to > the value 0 after the first loop. > > Any feed back would be appreciated.
In Python 2.6 and lower, division of two integers gives an integer, being the result without rest of division with rest: >>> 4/3 1 >>> 5/3 1 >>> 6/3 2 >>> In your example, the second run has number = 998, total = 999. 998/999 is evaluated to be zero. There are two ways to change this: 1. Ensure that at least one of the things you are using in the division is a float. You could for example replace "total = number" by "total = float(number)" or "number/total*100" by "float(number)/total*100" or by "(number*100.0)/total". 2. Use Python 3 behaviour here, which is done by putting the import "from __future__ import division" in your code. -- André Engels, andreeng...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
