PL 11-12

• 2 types of loops in Python:

   for loop

   while loop
• the for loop is used to run a block of code for a certain number of times.
• loops are used to repeat a block of code.
• A range is a series of values between two numeric intervals.
• a for loop inside another for loop, it’s called a nested for loop.
• The break statement is used to exit the for loop prematurely.
• We can use continue statements inside a for loop to skip the execution of the for loop body for a specific condition.
• step parameter - It tells the range function how many numbers to skip between each count.
• A while loop implements the repeated execution of code based on a given Boolean condition.
• The syntax of while loop

  
• The syntax of the for loop

  
• We can use else block with a Python for loop.
• A while loop can have an optional else block as well.
• str.lower() - a string function to convert the string to all lower-case
• It is used to iterate over any sequences such as list, tuple, string