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Program 21: To access string characters
Program21.py
File Edit Format Run Options Window Help
#Accessing string characters in Python
str = 'Orange Education'
print('str = ', str)
print('str[0] = ', str[0]) #First character
print('str[-1] = ', str[-1]) #Last character
You will get the following output:
Output
str = Orange Education
str[0] = O
str[-1] = n
Program 22: To check whether the side of the triangle given by the user form a scalene, isosceles or
equilateral triangle
Program22.py
File Edit Format Run Options Window Help
#Program to check if a triangle is Equilateral, Isosceles or Scalene
def triangle(A,B,C):
if (A == B == C):
print('Equilateral triangle')
elif ((A == B) or (B == C) or (A == C)):
print('Isosceles triangle')
else:
print('Scalene triangle')
print('Input the sides of the triangle: ')
A1 = float(input('A: '))
B1 = float(input('B: '))
C1 = float(input('C: '))
triangle(A1,B1,C1)
Output
Input the sides of the triangle:
A: 2.3
B: 5.3
C: 9.5
Scalene triangle
Functions, String and List in Python 121

