In Python, loops are used to repeatedly execute a block of code. There are two main types of loops: for loops and while loops. Let’s discuss them in detail.

 for loops:

Basic Syntax: In python we use.

for variable in iterable:

# code to be executed in each iteration

iterable: An object capable of returning its elements one at a time (e.g., lists, tuples, strings, etc.).

variable: A variable that takes the value of the next element in the iterable in each iteration.

Example:

fruits = [‘apple’, ‘banana’, ‘cherry’]

for fruit in fruits:

    print(fruit)

Range-based for loop:

Basic Syntax: In python we use

for i in range(start, stop, step):

# code to be executed in each iteration

start: Starting value (default is 0).

stop: Ending value (not inclusive).

step: Step size (default is 1).

Example:

for i in range(1, 6):

    print(i)

while loops:

Basic Syntax: In python we use

while condition:

    # code to be executed as long as the condition is True

Example:

count = 0

while count < 5:

    print(count)

    count += 1

Loop Control Statements:

break:

– Terminates the loop prematurely.

Example:

for char in “python”:

    if char == ‘h’:

        break

    print(char)

continue:

– Skips the rest of the code inside the loop for the current iteration and moves to the next iteration.

Example:

for char in “python”:

    if char == ‘h’:

        continue

    print(char)

else clause:

– Executed when the loop condition becomes False.

Example:

for i in range(5):

    print(i)

else:

    print(“Loop finished”)

Nested Loops:

You can have loops inside other loops.

 Example:

for i in range(3):

    for j in range(2):

        print(i, j)

This will produce a Cartesian product of the two ranges.

These are the fundamentals of loops in Python. They are powerful constructs for iterating over data and performing repetitive tasks.

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