import turtle
turtle.showturtle()
turtle.write("Welcome to Python")
turtle.forward(100)
turtle.backward(100)
turtle.color('red')
turtle.penup()
turtle.goto(50,50)
turtle.circle(r ,ext ,step) #draw a circle with the specified radius extent and step
turtle.dot(diameter,color)#draw a circle with the specified diameter and color
turtle.pensize(width)
turtle.right(angle)
turtle.left(angle)   #turn the turtle left by the specified angle
turtle.home() #move the turtle to the (0,0) point
turtle.undo()
turtle.speed(s) #sets the speed of the turtle ,s is an integer between 1 and 10, 10 is the fastest 
turtle.done()