Python script to draw a circle on turtle

circle.py

import turtle

# Draws a circle from the origin with a given radius
def drawCircle ( turtle :turtle.Turtle, radius :int, origin :tuple=(0,0), penSize :int=1, penColor :str="black", writeLabel :bool=False ) :
    turtle.pensize(penSize)
    turtle.pencolor(penColor)
    turtle.up()
    turtle.goto(origin[0],origin[1]-radius)
    turtle.down()
    turtle.circle(radius)
    turtle.up()
    if writeLabel:
        turtle.goto(origin[0],origin[1])
        turtle.down()
        turtle.dot()
        turtle.write("O",font=("CourierNew",8,"italic"))
        turtle.up()
    turtle.goto(origin[0],origin[1])
    turtle.down()

bob = turtle.Turtle()
drawCircle(bob,150)
turtle.mainloop()