Draw Lines using Polygon Function

[Emmanuel_2]

Below is a Python program I wrote to draw lines as many al there are mouse clicks. However, I wanted all the line segments to have the same attributes (eg: color, width etc), but that's not happening - only the last segment has my desired attributes. I am a beginner & need help please. Thanks!

from graphics import *

def isBetween(x, end1, end2):

    The ends do not need to be in increasing order.'''

    return end1 <= x <= end2 or end2 <= x <= end1

def isInside(point, rect):
    '''Return True if the point is inside the Rectangle rect.'''

    pt1 = rect.getP1()
    pt2 = rect.getP2()
    return isBetween(point.getX(), pt1.getX(), pt2.getX()) and \
           isBetween(point.getY(), pt1.getY(), pt2.getY())

def polyHere(rect, win):
    '''  Draw a polygon interactively in Rectangle rect, in GraphWin win.
    Collect mouse clicks inside rect into a Polygon.
    When a click goes outside rect, stop and return the final polygon.
    The polygon ends up drawn.  The method draws and undraws rect.'''

    rect.setOutline("red")
    rect.draw(win)
    vertices = list()
    pt2 = win.getMouse()
    vertices.append(pt2)
    pt = win.getMouse()
    n = 0
    while isInside(pt, rect):
        vertices.append(pt)
        poly = Polygon(vertices)
        poly.draw(win)
        del vertices[0]
        pt = win.getMouse()

    rect.undraw()
    return poly

def main():
    winWidth = 400
    winHeight = 400
    win = GraphWin('Drawing Polygons', winWidth, winHeight)
    win.setCoords(0, 0, winWidth, winHeight) 

    instructions = Text(Point(winWidth/2, 30),
                        "Click vertices inside the red rectangle."+
                        "\nClick outside the rectangle to stop.")
    instructions.draw(win)

    rect1 = Rectangle(Point(5, 55), Point(200, 120))
    poly1 = polyHere(rect1, win)
    poly1.setOutline('green')
    poly1.setWidth(2)
    rect2 = Rectangle(Point(210, 50), Point(350, 350))
    poly2 = polyHere(rect2, win)
    poly2.setOutline('blue')
    poly2.setWidth(3)

    instructions.setText("Click anywhere to quit.")
    win.getMouse()
    win.close()

main()

[vegaseat]

Module graphics is a wrapper around Tkinter, so take a look at:
http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/create_polygon.html