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Hasan Mahmud Rhidoy
Hasan Mahmud Rhidoy

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Conditional Logic in Python: Examples to Enhance Skills

#conditionallogic #python

Conditional logic allows a program to make decisions based on certain conditions. It lets your code take different actions depending on whether a condition is True or False. These decisions use conditional statements such as if, elif, and else.

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  • Check if a Number is Positive, Negative, or Zero 
number = 5 if number > 0: print("Positive") elif number < 0: print("Negative") else: print("Zero")
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  • Check if a Year is a Leap Year 
year = 2024 if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0): print("Leap Year") else: print("Not a Leap Year")
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  • Check if a Number is Even or Odd 
number = 10 if number % 2 == 0: print("Even") else: print("Odd")
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  • Check if a Person is Eligible to Vote (Age >= 18) 
age = 20 if age >= 18: print("Eligible to Vote") else: print("Not Eligible to Vote")
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  • Determine if a Number is Divisible by 5 
number = 25 if number % 5 == 0: print("Divisible by 5") else: print("Not Divisible by 5")
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  • Check if a String is Empty 
input_string = "" if not input_string: print("Empty String") else: print("Non-Empty String")
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  • Check if a Number is a Multiple of Both 3 and 7 
number = 21 if number % 3 == 0 and number % 7 == 0: print("Multiple of both 3 and 7") else: print("Not a multiple of both 3 and 7")
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  • Check if a Number is Between Two Values 
number = 15 if 10 < number < 20: print("Between 10 and 20") else: print("Not Between 10 and 20")
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  • Check if a Letter is a Vowel 
letter = 'A' if letter in 'aeiouAEIOU': print("Vowel") else: print("Consonant")
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  • Check if a Number is Greater Than or Equal to 100 
number = 150 if number >= 100: print("Greater than or equal to 100") else: print("Less than 100")
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  • Check if a String Starts with a Specific Character 
input_string = "Hello, World!" if input_string.startswith("H"): print("Starts with H") else: print("Does not start with H")
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  • Check if a Number is a Perfect Square 
number = 16 # Example number to check if int(number ** 0.5) ** 2 == number: print("Perfect Square") else: print("Not a Perfect Square")
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  • Check if a Key Exists in a Dictionary 
my_dict = {'name': 'John', 'age': 25} # Example dictionary if "name" in my_dict: print("Key 'name' exists") else: print("Key 'name' does not exist")
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