Python Data Types and Data Structures

Hello Readers,

Here we are Day 14 of #90daysofdevops

👣 Topics for #day14

• Data Types

• Data Structures

• Tasks of Day 14

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Data Types

Python Data Types are used to define the type of a variable. It defines what type of data we are going to store in a variable. The data stored in memory can be of many types. For example, a person's age is stored as a numeric value and his or her address is stored as alphanumeric characters.

Text Type:	str
Numeric Types:	int, float, complex
Sequence Types:	list, tuple, range
Mapping Type:	dict
Set Types:	set, frozenset
Boolean Type:	bool
Binary Types:	bytes, bytearray, memoryview
None Type:	NoneType

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Data Structures

A data structure is a way of organizing and storing data in a computer's memory so that it can be accessed and manipulated efficiently.Different data structures are used for different types of data and different operations.

So for example, if you need to store a collection of elements and perform operations like inserting or deleting elements, a list or a linked list may be suitable.

Python provides a range of built-in data structures, including lists, tuples, sets, and dictionaries, as well as support for more complex data structures like arrays and graphs through libraries and modules.

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Lets Learn List,Set ,Tuple and Dictionary

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List

• Lists are used to store multiple items in a single variable.

• Lists are created using square brackets.

• We can perform many actions on Lists.

Example:

newlist=['Git','AI','Chef']
print(newlist)

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Sets

• Sets are used to store multiple items in a single variable.

• A set is a collection which is unordered, unchangeable*(but we can remove items and add new items), and unindexed*.

Example:

thisset = {"apple", "banana", "cherry", True, 1, 2}
print(thisset)

Note: Look at the unordered sequence

Difference between Lists and Sets

• List is a collection which is ordered and changeable. Allows duplicate members.

• Set is a collection which is unordered, unchangeable, and unindexed. No duplicate members.

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Tuple

• Tuples are used to store multiple items in a single variable.

• A tuple is a collection which is ordered and unchangeable.

• Tuples are written with round brackets.

newTuple = ("Kicchha", "Power", "Star")
print(newTuple)

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Dictionary

• Dictionaries are used to store data values in key:value pairs.

• A dictionary is a collection which is ordered*, changeable and do not allow duplicates.

• Dictionaries are written with curly brackets, and have keys and values.

• Note:In Python V3.7, dictionaries are ordered. In Python V3.6 and earlier, dictionaries are unordered.

Example:

newDict = {
  "brand": "Redmi",
  "model": "Note",
  "year": 2023,
  "Price": "29,999"
}
print(newDict)
print(newDict["year"])

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Summary

• List is a collection which is ordered and changeable. Allows duplicate members.

• Tuple is a collection which is ordered and unchangeable. Allows duplicate members.

• Set is a collection which is unordered, unchangeable, and unindexed. No duplicate members.

• Dictionary is a collection which is ordered and changeable. No duplicate members.

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Tasks of Day 14

Solution:

Hands-on See Above.

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Pavan Kumar R

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