User defined functions inside other user defined functions

[WildP]

I want to make use of a function I have defined inside another function. But I can't figure out how.

I have defined a function in for the turtle-world, jump(x, y), that creates a turtle in the turtle-world, hides the turtle and then moves it to coordinates x and y with the following code

def jump(x, y):
    import turtle

    t = turtle.Turtle()
    t.hideturtle()
    t.penup()
    t.goto(x, y)
    t.pendown()

I have tried the function without hiding the turtle and it works fine.

I now want to use this function to define a new function, rectangle(x, y, width, height, color), that creates a rectangle with bottom left corner in (x, y), with given width and height and fillcolor. I have written this

def rectangle(x, y, width, height, color):
    jump(x, y)
    t.setheading(270)
    t.fillcolor(color)
    t.begin_fill()
    for i in range(4):
        t.left(90)
        if i % 2 == 0:
            t.forward(width)
        else:
            t.forward(height)
    t.end_fill()

When I try to use this function Idle returns "NameError: name 'jump' is not defined". It simply won't let me use the function jump inside the function rectangle. Is it not possible to use a user defined function inside another function? or how can I solve this?

I should add that the function rectangle works perfectly when I replace the line with "jump(x, y)" with the lines in jump(x, y) as:

def rectangle(x, y, width, height, color):
    import turtle

    t = turtle.Turtle()
    t.hideturtle()
    t.penup()
    t.goto(x, y)
    t.pendown()
    t.setheading(270)
    t.fillcolor(color)
    t.begin_fill()
    for i in range(4):
        t.left(90)
        if i % 2 == 0:
            t.forward(width)
        else:
            t.forward(height)
    t.end_fill()