 import turtle
import random
screen = turtle.Screen()                                            # Create a screen
turtle.title("HAPPY TEACHERS DAY")                           # Set title of the screen
screen.setup(width=800,height=500)                      # Set screen width and height
screen.bgcolor('black')                              # Set Background color of Screen
screen.tracer(0)            # Apply tracer On Screen So screen will refresh very fast
tt = turtle.Turtle()                  # Create a pen by which we will write any thing
tt.hideturtle()                                                  # Hide the Pen Arrow
             # Create List Of Random Colors
colors_pen = ['green', 'white', 'blue', 'yellow', 'pink', 'purple', 'violet', 'gray', 'red']
colors_fill = ['green', 'blue', 'white', 'yellow', 'pink', 'purple', 'violet', 'gray', 'red']
tt.speed('fastest')                                       # Set tt pen Speed Very Fast
def gg():
    for i in range(16): # Create A loop so 16 stars will create
        # get a random co-ordinates to creae Stars
        x,y = random.randrange(-350,350),random.randrange(-230,230)
        tt1 = turtle.Turtle() # create a new pen
        tt1.color(random.choice(colors_pen)) # choose a random tt1 pen color
        # Write happy mothers day using tt1 pen
        tt1.write('HAPPY TEACHERS DAY',font=('chiller',95,'italic bold'),align='center')
        tt1.clear()         # clear the tt1 pen so speed will maintain
        tt.penup()       # up the pen
        tt.goto(x,y)     # goto in the random co-ordinates
        tt.pendown()     # down the pen
        tt.begin_fill()  # call the begin_fill so star is in filled with color
        tt.color(random.choice(colors_pen)) # choose a random color for star
        for i in range(6): # create a star
            tt.forward(30)
            tt.right(144)
        tt.end_fill() # now call end fill so star will filled with color
while True:  # create a infinite loop
    gg() # call gg function
    tt.clear() # clear the tt pen (stars)
turtle.mainloop() # hold turtle screen in a loop so it will be visible

created 3 years ago

Python Online Compiler

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.

Taking inputs (stdin)

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)

About Python

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.

Tutorial & Syntax help

Loops

1. If-Else:

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

Note:

Indentation is very important in Python, make sure the indentation is followed correctly

2. For:

For loop is used to iterate over arrays(list, tuple, set, dictionary) or strings.

Example:

mylist=("Iphone","Pixel","Samsung")
for i in mylist:
    print(i)

3. While:

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

Collections

There are four types of collections in Python.

1. List:

List is a collection which is ordered and can be changed. Lists are specified in square brackets.

Example:

mylist=["iPhone","Pixel","Samsung"]
print(mylist)

2. Tuple:

Tuple is a collection which is ordered and can not be changed. Tuples are specified in round brackets.

Example:

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)

3. Set:

Set is a collection which is unordered and unindexed. Sets are specified in curly brackets.

Example:

myset = {"iPhone","Pixel","Samsung"}
print(myset)

4. Dictionary:

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.

Example:

mydict = {
    "brand" :"iPhone",
    "model": "iPhone 11"
}
print(mydict)

Supported Libraries

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