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Python : Turtle tree

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Turtle module can be used to draw some very nice patterns in Python.
Following are some examples with code.

====================
import turtle
import random
t = turtle.Turtle(shape="circle")
t.lt(90)
lv = 14
l = 120
s = 30
t.color('indigo')
t.width(lv)
t.penup()
t.bk(l)
t.pendown()
t.fd(l)
def draw_tree(l, level):
width = t.width() # save the current pen width
t.width(width * 3.0 / 4.0) # narrow the pen width
l = 3.0 / 4.0 * l
#t.color(R,G,B) #provide the RGB numbers
t.color(random.random(), random.random(), random.random())
t.lt(s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.rt(2 * s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.lt(s)
t.width(width) # restore the previous pen width
t.speed("fastest")
draw_tree(l, 5)
turtle.done()

====================
import turtle
import random
t = turtle.Turtle(shape="circle")
t.lt(90)
lv = 14
l = 120
s = 45
t.color('indigo')
t.width(lv)
t.penup()
t.bk(l)
t.pendown()
t.fd(l)
def draw_tree(l, level):
width = t.width() # save the current pen width
t.width(width * 3.0 / 4.0) # narrow the pen width
l = 3.0 / 4.0 * l
#t.color(R,G,B) #provide the RGB numbers
t.color(random.random(), random.random(), random.random())
t.lt(s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.rt(2 * s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.lt(s)
t.width(width) # restore the previous pen width
t.speed("fastest")
draw_tree(l, 5)
turtle.done()

====================
import turtle
import random
t = turtle.Turtle(shape="circle")
t.lt(90)
lv = 14
l = 120
s = 60
t.color('indigo')
t.width(lv)
t.penup()
t.bk(l)
t.pendown()
t.fd(l)
def draw_tree(l, level):
width = t.width() # save the current pen width
t.width(width * 3.0 / 4.0) # narrow the pen width
l = 3.0 / 4.0 * l
#t.color(R,G,B) #provide the RGB numbers
t.color(random.random(), random.random(), random.random())
t.lt(s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.rt(2 * s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.lt(s)
t.width(width) # restore the previous pen width
t.speed("fastest")
draw_tree(l, 5)
turtle.done()

====================
import turtle
import random
t = turtle.Turtle(shape="circle")
t.lt(90)
lv = 14
l = 120
s = 90
t.color('indigo')
t.width(lv)
t.penup()
t.bk(l)
t.pendown()
t.fd(l)
def draw_tree(l, level):
width = t.width() # save the current pen width
t.width(width * 3.0 / 4.0) # narrow the pen width
l = 3.0 / 4.0 * l
#t.color(R,G,B) #provide the RGB numbers
t.color(random.random(), random.random(), random.random())
t.lt(s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.rt(2 * s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.lt(s)
t.width(width) # restore the previous pen width
t.speed("fastest")
draw_tree(l, 5)
turtle.done()

====================
import turtle
import random
t = turtle.Turtle(shape="circle")
t.lt(90)
lv = 14
l = 120
s = 20
t.color('indigo')
t.width(lv)
t.penup()
t.bk(l)
t.pendown()
t.fd(l)
def draw_tree(l, level):
width = t.width() # save the current pen width
t.width(width * 3.0 / 4.0) # narrow the pen width
l = 3.0 / 4.0 * l
#t.color(R,G,B) #provide the RGB numbers
t.color(random.random(), random.random(), random.random())
t.lt(s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.rt(2 * s)
t.fd(l)
if level < lv:
draw_tree(l, level + 1)
t.color(random.random(), random.random(), random.random())
t.bk(l)
t.lt(s)
t.width(width) # restore the previous pen width
t.speed("fastest")
draw_tree(l, 5)
turtle.done()

====================
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