Day 14 : Python Data Types and Data Structures for DevOps
Data Types
Data types are the classification or categorization of data items. It represents the kind of value that tells what operations can be performed on a particular data.
Since everything is an object in Python programming, data types are actually classes and variables are instance (object) of these classes.
Python has the following data types built-in by default: Numeric(Integer, complex, float), Sequential(string,lists, tuples), Boolean, Set, Dictionaries, etc
To check what is the data type of the variable used, we can simply write: your_variable=100 type(your_variable)
Data Structures
Data Structures are a way of organizing data so that it can be accessed more efficiently depending upon the situation. Data Structures are fundamentals of any programming language around which a program is built. Python helps to learn the fundamental of these data structures in a simpler way as compared to other programming languages.
Lists Python Lists are just like the arrays, declared in other languages which is an ordered collection of data. It is very flexible as the items in a list do not need to be of the same type
Tuple Python Tuple is a collection of Python objects much like a list but Tuples are immutable in nature i.e. the elements in the tuple cannot be added or removed once created. Just like a List, a Tuple can also contain elements of various types.
Dictionary Python dictionary is like hash tables in any other language with the time complexity of O(1). It is an unordered collection of data values, used to store data values like a map, which, unlike other Data Types that hold only a single value as an element, Dictionary holds the key:value pair. Key-value is provided in the dictionary to make it more optimized
Tasks
- Give the Difference between List, Tuple and set. Do Handson and put screenshots as per your understanding.
List
Lists are used to store multiple items in a single variable. Lists are one of 4 built-in data types in Python used to store collections of data. List items are ordered, changeable, and allow duplicate values. List items are indexed, the first item has an index [0], the second item has an index [1] etc.
Now lets look at some example :
So this a simple program for list. Now lets try to execute this
Tuple
Tuples are used to store multiple items in a single variable. Tuple is one of 4 built-in data types in Python used to store collections of data. A tuple is a collection that is ordered and unchangeable. Tuples are written with round brackets.
Let's create program for tuple
Set
Python Set is the unordered collection of the data type. It may change after creation and has unique elements. In a set, the order of the elements is undefined; it may return the changed sequence of the element. The set is created by using a built-in function set(), or a sequence of elements is passed in the curly braces and separated by the comma.
Let's create a program for Set
2. Create the below Dictionary and use Dictionary methods to print your favorite tool just by using the keys of the Dictionary.
3. Create a List of cloud service providers.Write a program to add Digital Ocean to the list of cloud_providers and sort the list in alphabetical order.
