Concepts used - Statements, loops, variables, functions

0_Day1_PythonBridgeCourse.py

'''
draw a line using turtle
'''

import turtle

t = turtle.Turtle()
t.forward(100)

2_square.py

'''
draw a square
'''

import turtle

t = turtle.Turtle()

t.forward(100)
t.left(90)
t.forward(100)
t.left(90)
t.forward(100)
t.left(90)
t.forward(100)
t.left(90)

3_square_loops.py

'''
draw a square using loop
The statements within the for loop executes 4 times for i values, 0, 1, 2,3
key concept - using loops for repeated statements
'''

import turtle

t = turtle.Turtle()

for i in range(4):
    t.forward(100)
    t.left(90)

4_using_variables.py

'''
draw a square - replace all magic numbers with variables
key concept - using variables for storing values
'''

import turtle

t = turtle.Turtle()

sides = 4
length = 100
angle = 360 / sides

for i in range(sides):
    t.forward(length)
    t.left(angle)

5_using_functions.py

'''
draw a polygon - using a function
key concept - using functions for block of code that performs an action
    syntax: def function_name():
'''

import turtle

def draw_shape(t, sides, length):
    angle = 360 / sides
    for i in range(sides):
        t.forward(length)
        t.left(angle)

t = turtle.Turtle()
draw_shape(t, 4, 100)

6_pattern.py

'''
draw a pattern
'''

import turtle

def draw_shape(t, sides, length):
    angle = 360 / sides
    for i in range(sides):
        t.forward(length)
        t.left(angle)

t=turtle.Turtle()
t.color("red")
t.begin_fill()
for i in range(20):
    draw_shape(t, 4, 100)
    t.left(18)
t.end_fill()