In Python,  a **for-loop** iterates  over the members of a sequence (that is either a list, a tuple, a dictionary, a set, or a string) using an iterating variable which keeps track of the current item in the sequence. This allows a piece of code to be executed repeatedly for each member of the sequence.

>The `for`-loop does not require an indexing variable to be set beforehand.



# Example

This code will find the sum of all the numbers stored in a list using a `for`-loop in Python.

# List of numbers
numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

# variable to store the sum
sum = 0

# iterate over the list
for val in numbers:
	sum = sum+val

# Output: The sum is 48
print("The sum is", sum)

The loop in the above code will run *nine* times as it iterates over the list and adds each item to the previously calculated sum for each iteration. 

How do you execute a simple for loop in Python?

Syntax in Python

Flow Diagram

Example