svg in python(fractal systems)

[Nonemsludo]

[python]
import math
 
start = "+++++++++++++X"
iterations = 7 # how many iterations to do
delta = 1.5
# Start: X
# Rules:
# X --> F[T+++++++++X]-F[S-----------!X]RX
 
 
 
def generate(l):
    r="" 
    for x in l: # Go through the list of actions, expand according to rules above
        if x == 'F':
            r = r + "FF"
        elif x == 'X':
            r = r + "F[T+++++++++X]-F[S-----------!X]RX"
 
        else:
            r =  r + x # Copy character over, no expansion
    return r
 
 
 
 
def Draw(f,s):
    cur_angle = math.radians(360) # Start angle in radians -- looks best if we start at 90degrees
    angle = math.radians(7.2) # we turn left or right by this angle
    store = [] # For saving the current position 
    pos = (400,400) # Start position (in 2D plane)
    delta = 1.5
    for c in s:
        if c == 'F': # means draw forward, number of units
            x,y = pos
            # compute new position
            newx,newy = x + delta*math.cos(cur_angle), y + delta*math.sin(cur_angle)
            # draw the line
            f.write('<line x1="%.2f"  y1="%.2f" x2="%.2f" y2="%.2f" />\n' % (x,y,newx,newy))
            pos = (newx,newy) # We move to new position
 
    elif c == 'T':
        delta*0.5
    elif c == 'S':
        delta*0.4
    elif c == 'R':
        delta*0.6
    elif c == '!':
        if c == '-':
            cur_angle-=angle
        if c == '+':
            cur_angle+=angle
        elif c == '-':
            cur_angle += angle 
        elif c == '+':
            cur_angle -= angle 
        elif c == '[': # means save current position
            store.append((pos,cur_angle))
        elif c == ']': # get back last saved position, angle
            pos,cur_angle = store.pop()
        else: # Ignore all others (as per spec)
            pass
 
 
# Now starts the program proper 
end = start
for i in range(0,iterations):
    end = generate(end)
 
 
f = open("tumble weed.svg", "w")
 
#Print SVG preamble
f.write("<?xml version='1.0'?>\n")
f.write("<svg xmlns='http://www.w3.org/2000/svg'>\n")
f.write("<g id=\"x\" stroke=\"blue\">\n")
 
Draw(f,end) # Draw the image
f.write("</g>\n</svg>\n")
f.close()

This is code to draw tumble weed in svg using python, it doesn't produce the right result, how can it be modified

[Glenton]

You're kidding, right?!

[Nonemsludo]

No, it does not produce the right result

[Glenton]

I mean, are you seriously expecting us to help you with so little information? What's it meant to produce? What's it's producing? I'm afraid I can't read your mind.