Nested list in python python tutorials for beginners lec37

### nested lists in python

a nested list in python is simply a list that contains other lists as its elements. this allows you to create complex data structures, such as matrices or grids, where each element can itself be a list.

#### creating a nested list

you can create a nested list by placing lists within a list. here’s an example:

#### accessing elements in a nested list

to access elements in a nested list, you need to specify the index of the outer list and the index of the inner list. for example:

#### modifying elements in a nested list

you can modify elements in a nested list in the same way you would modify elements in a regular list:

#### iterating through a nested list

you can use nested loops to iterate through all the elements in a nested list:

**output:**

#### list comprehensions with nested lists

you can also use list comprehensions to work with nested lists. for example, if you want to create a new nested list where each element is squared:

#### example: a simple matrix operations program

here is a simple program that demonstrates the creation, modification, and iteration of a nested list representing a matrix:

**output:**

### conclusion

nested lists are a powerful feature in python that allows you to create complex data structures. they can be particularly useful for representing matrices, grids, or any hierarchical data. with the ability to access, modify, and iterate through nested lists, you can effectively manage and manipulate multi-dimensional data in your applications.

...

#python beginners programs
#python beginners exercise
#python beginners guide
#python beginners course
#python beginners

python beginners programs
python beginners exercise
python beginners guide
python beginners course
python beginners
python beginners project
python beginners book pdf
python beginners pdf
python beginners book
python beginners questions
python list
python list index
python list length
python list append
python list pop
python list methods
python list comprehension
python list to string