Python Loops Examples

Problem 1: Count the Number of Vowels in a String

Example 1 

  text = "Python Programming"
vowels = "aeiouAEIOU"
count = 0

for ch in text:
  if ch in vowels:
      count += 1

print("Vowel Count:", count)

Problem 2: Remove All Vowels from a String

Example 2 

  text = "Beautiful"
vowels = "aeiouAEIOU"
result = ""

for ch in text:
  if ch not in vowels:
      result += ch

print("After Removing Vowels:", result)

Problem 3: Print all odd numbers from 1 to 30

Example 3 

 for i in range(1, 30):
  if i % 2 != 0:
      print(i,end=" ")

Problem 4: Count Occurrence of Each Character

Example 4 

  text = "banana"

for ch in set(text):
  print(f"{ch} - {text.count(ch)}")

Problem 5: Check if a number is prime

Example 5 

  num = int(input(“Enter Number: “))
is_prime = True

if num > 1:
  for i in range(2, num):
      if num % i == 0:
          is_prime = False
          break

if is_prime:
  print("Prime")
else:
  print("Not Prime")