Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit (Intel)] on win32
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>>> from sqr_func import *
>>> Distance(1,2,4,6)
(1, 5)
def Distance(x1,y1,x2,y2):
sq=((x2-x1)**2+(y2-y1)**2)**0,5
return sq