Три точки и круг

from math import sqrt
(x1,y1) = map(int,input().split())
(x2,y2) = map(int,input().split())
(x3,y3) = map(int,input().split())
def dist(a1,b1,a2,b2):
    return sqrt((a1-a2)**2+(b1-b2)**2)
def point(a1,b1,a2,b2):
    if a1!=a2:
        v = a1-a2
        x = abs(v)/2
        c = b1-b2
        k = c/v
        b = b1-a1*k
        y = k*x+b
        return x,y
    else:
        y = abs(b1-b2)
        y - y/2
        return a1,y
def moreO():
    if dist(x1,y1,x2,y2)>dist(x2,y2,x3,y3):
        if dist(x1,y1,x2,y2)>dist(x3,y3,x1,y1):
            return x1,y1,x2,y2
        else:
            return x3,y3,x1,y1
    elif dist(x2,y2,x3,y3)>dist(x3,y3,x1,y1):
            return x2,y2,x3,y3
    else:
         return x3,y3,x1,y1
def moreP(a,b):
    if dist(a,b,x1,y1)>dist(a,b,x2,y2):
        if dist(a,b,x1,y1)>dist(a,b,x3,y3):
            return dist(a,b,x1,y1)
        else:
            return dist(a,b,x3,y3)
    elif dist(a,b,x2,y2)>dist(a,b,x3,y3):
            return dist(a,b,x2,y2)
    else:
         return dist(a,b,x3,y3)
print(moreP(point(moreO()[0],moreO()[1],moreO()[2],moreO()[3])[0],point(moreO()[0],moreO()[1],moreO()[2],moreO()[3])[1]))