A Turtle object has many methods that can be grouped into families. You can learn more about the methods of the turtle module in Python from the official documentation. Now let me introduce you to an advanced project on Turtle graphics with the Python programming language:
import turtle as tu
roo = tu.Turtle() # Turtle object
wn = tu.Screen() # Screen Object
wn.bgcolor("black") # Screen Bg color
wn.title("Fractal Tree Pattern")
roo.left(90) # moving the turtle 90 degrees towards left
roo.speed(20) # setting the speed of the turtle
def draw(l): # recursive function taking length 'l' as argument
if (l < 10):
return
else:
roo.pensize(2) # Setting Pensize
roo.pencolor("yellow") # Setting Pencolor as yellow
roo.forward(l) # moving turtle forward by 'l'
roo.left(30) # moving the turtle 30 degrees towards left
draw(3 * l / 4) # drawing a fractal on the left of the turtle object 'roo' with 3/4th of its length
roo.right(60) # moving the turtle 60 degrees towards right
draw(3 * l / 4) # drawing a fractal on the right of the turtle object 'roo' with 3/4th of its length
roo.left(30) # moving the turtle 30 degrees towards left
roo.pensize(2)
roo.backward(l) # returning the turtle back to its original psition
draw(20) # drawing 20 times
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor("magenta") # magenta
roo.forward(l)
roo.left(30)
draw(3 * l / 4)
roo.right(60)
draw(3 * l / 4)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(20)
roo.left(270)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor("red") # red
roo.forward(l)
roo.left(30)
draw(3 * l / 4)
roo.right(60)
draw(3 * l / 4)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(20)
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor('#FFF8DC') # white
roo.forward(l)
roo.left(30)
draw(3 * l / 4)
roo.right(60)
draw(3 * l / 4)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(20)
########################################################
def draw(l):
if (l < 10):
return
else:
roo.pensize(3)
roo.pencolor("lightgreen") # lightgreen
roo.forward(l)
roo.left(30)
draw(4 * l / 5)
roo.right(60)
draw(4 * l / 5)
roo.left(30)
roo.pensize(3)
roo.backward(l)
draw(40)
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(3)
roo.pencolor("red") # red
roo.forward(l)
roo.left(30)
draw(4 * l / 5)
roo.right(60)
draw(4 * l / 5)
roo.left(30)
roo.pensize(3)
roo.backward(l)
draw(40)
roo.left(270)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(3)
roo.pencolor("yellow") # yellow
roo.forward(l)
roo.left(30)
draw(4 * l / 5)
roo.right(60)
draw(4 * l / 5)
roo.left(30)
roo.pensize(3)
roo.backward(l)
draw(40)
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(3)
roo.pencolor('#FFF8DC') # white
roo.forward(l)
roo.left(30)
draw(4 * l / 5)
roo.right(60)
draw(4 * l / 5)
roo.left(30)
roo.pensize(3)
roo.backward(l)
draw(40)
########################################################
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor("cyan") # cyan
roo.forward(l)
roo.left(30)
draw(6 * l / 7)
roo.right(60)
draw(6 * l / 7)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(60)
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor("yellow") # yellow
roo.forward(l)
roo.left(30)
draw(6 * l / 7)
roo.right(60)
draw(6 * l / 7)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(60)
roo.left(270)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor("magenta") # magenta
roo.forward(l)
roo.left(30)
draw(6 * l / 7)
roo.right(60)
draw(6 * l / 7)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(60)
roo.right(90)
roo.speed(2000)
# recursion
def draw(l):
if (l < 10):
return
else:
roo.pensize(2)
roo.pencolor('#FFF8DC') # white
roo.forward(l)
roo.left(30)
draw(6 * l / 7)
roo.right(60)
draw(6 * l / 7)
roo.left(30)
roo.pensize(2)
roo.backward(l)
draw(60)
wn.exitonclick() Write, Run & Share Python code online using OneCompiler's Python online compiler for free. It's one of the robust, feature-rich online compilers for python language, supporting both the versions which are Python 3 and Python 2.7. Getting started with the OneCompiler's Python editor is easy and fast. The editor shows sample boilerplate code when you choose language as Python or Python2 and start coding.
OneCompiler's python online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample python program which takes name as input and print your name with hello.
import sys
name = sys.stdin.readline()
print("Hello "+ name)
Python is a very popular general-purpose programming language which was created by Guido van Rossum, and released in 1991. It is very popular for web development and you can build almost anything like mobile apps, web apps, tools, data analytics, machine learning etc. It is designed to be simple and easy like english language. It's is highly productive and efficient making it a very popular language.
When ever you want to perform a set of operations based on a condition IF-ELSE is used.
if conditional-expression
#code
elif conditional-expression
#code
else:
#code
Indentation is very important in Python, make sure the indentation is followed correctly
For loop is used to iterate over arrays(list, tuple, set, dictionary) or strings.
mylist=("Iphone","Pixel","Samsung")
for i in mylist:
print(i)
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while condition
#code
There are four types of collections in Python.
List is a collection which is ordered and can be changed. Lists are specified in square brackets.
mylist=["iPhone","Pixel","Samsung"]
print(mylist)
Tuple is a collection which is ordered and can not be changed. Tuples are specified in round brackets.
myTuple=("iPhone","Pixel","Samsung")
print(myTuple)
Below throws an error if you assign another value to tuple again.
myTuple=("iPhone","Pixel","Samsung")
print(myTuple)
myTuple[1]="onePlus"
print(myTuple)
Set is a collection which is unordered and unindexed. Sets are specified in curly brackets.
myset = {"iPhone","Pixel","Samsung"}
print(myset)
Dictionary is a collection of key value pairs which is unordered, can be changed, and indexed. They are written in curly brackets with key - value pairs.
mydict = {
"brand" :"iPhone",
"model": "iPhone 11"
}
print(mydict)
Following are the libraries supported by OneCompiler's Python compiler
| Name | Description |
|---|---|
| NumPy | NumPy python library helps users to work on arrays with ease |
| SciPy | SciPy is a scientific computation library which depends on NumPy for convenient and fast N-dimensional array manipulation |
| SKLearn/Scikit-learn | Scikit-learn or Scikit-learn is the most useful library for machine learning in Python |
| Pandas | Pandas is the most efficient Python library for data manipulation and analysis |
| DOcplex | DOcplex is IBM Decision Optimization CPLEX Modeling for Python, is a library composed of Mathematical Programming Modeling and Constraint Programming Modeling |