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 a 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 the 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.