ADVANCED PROGRAMMING CONCEPTS - Python
Subject : ADVANCED PROGRAMMING CONCEPTS - Python
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Python Programs:
# Python Conditions and If statements
#
# Equals: a == b
# Not Equals: a != b
# Less than: a < b
# Less than or equal to: a <= b
# Greater than: a > b
# Greater than or equal to: a >= b
a = 33
b = 200
# if b < a:
# print("b is greater than a")
#
# print("Welcome")
if (b > a):
print("b is greater than a")
Output:
b is greater than a
#Indentation Issue
a = 33
b = 200
if b > a:
print("b is greater than a") # you will get an error
Output:
File "C:/Users/Hp/PycharmProjects/Python_if_statements/2.py", line 5
print("b is greater than a") # you will get an error
^
IndentationError: expected an indented block
# elif
# The elif keyword is pythons way of saying
# "if the previous conditions were not true, then try this condition".
a = 33
b = 33
if b > a:
print("b is greater than a")
elif a == b:
print("a and b are equal")
Output:
a and b are equal
# else
# The else keyword catches anything which isn't caught by the preceding conditions.
a = 33
b = 33
if b > a:
print("b is greater than a")
elif a == b:
print("a and b are equal")
else:
print("a is greater than b")
Output:
a and b are equal
#You can also have an else without the elif:
a = 333
b = 333
if b > a:
print("b is greater than a")
elif b<a:
print("b is not greater than a")
else:
print("Both a and b are equal")
Output:
Both a and b are equal
# Short Hand If
# If you have only one statement to execute,
# you can put it on the same line as the if statement.
a=10
b=1
if a > b: print("a is greater than b")
Output:
a is greater than b
#Short Hand If ... Else
a = 2
b = 330
print("A") if a < b else print("B")
#This technique is known as Ternary Operators, or Conditional Expressions.
Output:
A
#One line if else statement, with 3 conditions:
# a = 331
# b = 330
# print("A") if a > b else print("=") if a == b else print("B")
# a = 330
# b = 330
# print("A") if a > b else print("=") if a == b else print("B")
a = 330
b = 333
print("A") if a > b else print("=") if a == b else print("B")
Output:
B
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