Collections

Python Collections

Python collections refer to specialized data structures available in the Python programming language that provide more advanced and efficient ways to store, manipulate, and manage data. Collections in Python are containers that are used to store collections of data. General purpose built-in containers of Python programming language are listed below:

• list
• set
• tuple
• dist

List

In Python, list is one of the basic data structure useful to store multiple data items. The lists are ordered and have a definite count. 

Lists are mutable sequences, typically used to store collections of homogeneous items. But lists can also be used to store items with different data type. The elements in a list are identified by it's index number. Index number begins with 0.

Creating list in Python

Following code will create the lists with names: squares and banks. 

# List of numbers

>>> squares = [1, 4, 9, 16, 25]
>>> squares
[1, 4, 9, 16, 25]

# List of words

>>> banks = ['sbi', 'hdfc', 'icici']

>>> banks

['sbi', 'hdfc', 'icici']

Accessing values from a List 

Following code can be used to access values from a list.

>>> banks = ['sbi', 'hdfc', 'icici']

>>> banks

['sbi', 'hdfc', 'icici']

# prints first value from a List

>>> print(banks[0]
sbi

< Brief note on Python Collections >

< Read more about Python List >

< Read more about Python Set >

< Read more about Python Tuple >

< Read more about Python Dictionary >

For more details, you can refer detailed documentation available at URL: https://docs.python.org/3/library/stdtypes.html

* * * * *

<  Back to Home Page >