Example

This program draws a red line, moves without drawing, then draws a blue line.

import turtle as otto

otto.color("red")
otto.pensize(3)
otto.forward(60)
otto.left(90)
otto.forward(40)

otto.penup()
otto.goto(-40, 20)
otto.pendown()
otto.color("blue")
otto.pensize(5)
otto.right(90)
otto.backward(50)

The result: a red line goes right and then up. A separate blue line goes left.

Summary

Code or command	What it does
`import turtle as otto`	Makes drawing commands available under the short name `otto`.
`forward(distance)`	Moves forward by `distance` in the direction the turtle faces.
`backward(distance)`	Moves backward by `distance`, opposite to the direction it faces.
`left(angle)`	Turns left by `angle`.
`right(angle)`	Turns right by `angle`.
`goto(x, y)`	Moves to position `(x, y)`.
`penup()`	Lifts the pen so movement does not draw.
`pendown()`	Lowers the pen so movement draws again.
`color(color)`	Sets the line color, for example `"red"`.
`pensize(width)`	Sets the line width.