For loop

What is For loop in Python?
  • A for loop in python has the ability to iterate over items of any sequence (List, tuple, string) or any other iterable objects.
  • Iterating over a sequence is called traversal.
Syntax:
                    for var in sequence:
                            body statements
    
  • Here, var is a variable that is used to take the next values from the sequence on every iteration until the end of the sequence is reached.

If, If...else, If...elif...else, Nested If

What is selection statement in Python?
  • In some cases in programming, Our program has to decide whether the following block of codes needs to be executed or not, based on some conditions.
  • Such Decision making statements/selection statements decide the direction of flow of program execution.
  • Decision making statements/selection statements available in Python are
        • if (Simple If)
        • if-else
        • else-if ladder
        • Nested if
  • In python, body statements inside the selection statement are indicated by the indentation. The very first unindented line marks the end of the selection statements.