Python Tutorial | What is Python? | Python Programming

1. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Home (https://intellipaat.com/blog) / Tutorial (https://intellipaat.com/blog/tutorials/) / Python Tutorial – Learn Python 3 Programming Online Python Tutorial – Learn Python 3 Programming Online This Python tutorial will help you learn Python and build a career in this top programming language. Through this tutorial, you will learn Python basics, its salient features, basic syntax, variables, string, numbers, data types, tuples, lists, sets, dictionary, conditional statements, loops and user de?ned functions. Learn Python from Intellipaat Python Certi?cation (https://intellipaat.com/python-certi?cation-training-online/) course and excel in your career! 3.7 K Views | 34 min read | Updated on September 26, 2019 By Naveen 1/46 in Python Tutorial Next (https://intellipaat.com/blog/tutorial/python-tutorial/fundamentals-of-python/) Introduction to Python In this python tutorial we will comprehensively learn all the concepts of Python. Let’s start o? by understanding what exactly is Python. Python is a free, open source programming language. So, all you have to do is install Python once and you can start working with it. And since Python is open source, you can contribute your own code to the community. Python is also a cross platform compatible language. So, what does this mean? Well, you can install and run Python on several operating systems. So, whether you have a Windows, Mac or Linux, you can be rest assured that Python will work on all these operating systems. https://intellipaat.com/blog/tutorial/python-tutorial/ 1/39

2. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python is also a great visualization tool. Python provides libraries such as matplotlib, seaborn and bokeh to create stunning visualizations. Python is the most popular language for implementing machine learning and deep learning tasks. Today, every top organization is investing in the ?eld of machine learning and majority of these machine learning applications are implemented with python at back- end. Now, that we have understood what exactly is python, let us go ahead in this Python tutorial and understand why should we learn python? https://intellipaat.com/blog/tutorial/python-tutorial/ 2/39

3. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Watch this Python Tutorial Video for Beginners: Python Tutorial: Why learn Python? Simple and easy to learn: Learning python programming language is fun. If you compare python with any other language for example java or c++, you’ll ?nd that it’s syntax is way lot easier. You also don’t have to worry about the missing semi colons(;) in the end. Let’s say we want to print “Welcome to the world of programming.” on our screen. Now, let’s compare the syntax for python and java: Python Syntax: print(“Welcome to the world of programming”) Java Syntax: class Simple{ publicstaticvoid main(String args[]){ System.out.println("Welcome to the world of programming"); } } So, here we see that, python code is of just one line but when it comes to java, there are multiple lines of code just for printing a statement. https://intellipaat.com/blog/tutorial/python-tutorial/ 3/39

4. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Interested in learning Python? Enroll in our Python Course in London (https://intellipaat.com/python -certi?cation-training-online-london/) now! Career Opportunities: Python has huge career opportunities in the IT industry. Almost every other IT company, be it a startup or a Multi-National Company uses python for varied applications. So, if you have good expertise in python, you will be in demand for a wide range of jobs in di?erent domains such machine learning, cloud infrastructure, web-site designing, testing and many more. Watch this Python for Data Science Video: Large Open Source Community: Let’s say you are working on a python project and you get stuck somewhere, you don’t have to worry at all because python has a huge community for help. So, if you have any queries, you can directly seek help from millions of python community members. Now, in this python tutorial, we will look at the procedure to install python. Python Installation If you are new to programming, then installing a programming language itself could be a herculean task. So, now we are going to look at the step by step process to install python. 1. Start o? by going to this website -> https://www.python.org/downloads/ (https://www.python.org/downloads/) https://intellipaat.com/blog/tutorial/python-tutorial/ 4/39

5. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat 2. Click on the downloads tab and choose the operating system and python version. So, here I am downloading python version 3.7.4 for  Windows operating system. Now that we have installed python, let’s go ahead in this python tutorial and start o? with programming in Python For the best of career growth, check out Intellipaat’s Python Course in Sydney (https://intellipaat.co m/python-certi?cation-training-online-sydney/) and get certi?ed! Variables in Python: You can consider a variable to be a temporary storage space where you can keep changing values. Let’s take this example to understand variables: So, let’s say, we have this cart and initially we store an apple in it. https://intellipaat.com/blog/tutorial/python-tutorial/ 5/39

6. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat After a while, we take out this apple and replace it with a banana. Again, after some time, we replace this banana with a mango. https://intellipaat.com/blog/tutorial/python-tutorial/ 6/39

7. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat So, here this cart acts as a variable, where the values stored in it keep on changing. Now, that we have understood what a variable is, let’s go ahead and see how can we assign values to a variable in python. Watch this Python Interview Questions video: Assigning values to a variable: To assign values to a variable in Python, we will use the assignment (=) operator. Here, initially, we have stored a numeric value -> 10 in the variable ‘a’.  After a while, we have stored a string value -> “sparta” in the same variable. And then, we have stored the logical value True. Now, let’s implement the same thing in Jupyter Notebook and look at the result: Assigning a value 10 to a: Assigning “sparta” to a: https://intellipaat.com/blog/tutorial/python-tutorial/ 7/39

8. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Assigning True to a: Going ahead in this python tutorial, we will learn about data types in Python.. Data Types in Python Every variable is associated with a data type and these are the di?erent types of   data types (https://intellipaat.com/blog/tutorial/python-tutorial/python-datatypes/) available in python: Now, let’s understand these individual data types by their implementation in jupyter notebook. Watch this Matplotlib Python Tutorial Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 8/39

9. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Numbers in Python Numbers in python could be integers, ?oating point numbers or complex numbers. Let’s start o? with an example on integer: Here, we have assigned the value 100 to num1 and when we check the type of the variable, we see that it is an integer. Next, we have an example on ?oating point number: This time, we have assigned the value 13.4 to num2 and checking the type of the variable, tells us that it is ?oat. Finally, let’s look at an example on complex number: Here, we have assigned the value 10-10j to num3. Now 10-10j comprises of two parts->  the real part and the imaginary part and combining these two gives us the complex number. Now, let’s start with Python Strings. Intellipaat is providing free Python Interview Questions and Answers (https://intellipaat.com/interview -question/python-interview-questions/), which will help you excel in your career! Watch this Sentiment Analysis Python Tutorial Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 9/39

10. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python Strings Anything written in single or double quotes is treated as a string in Python.                     Now, let’s see how can we extract individual characters from a string. So, I’d want to extract the ?rst two characters from ‘str1’ which I have created above: Now, similarly, let’s extract the last two characters from str1: Now, let’s head onto tuples in Python: Watch this Python vs Go Tutorial Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 10/39

11. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python Tuples A python tuple is a collection of immutable python objects enclosed within parenthesis (). Elements in a tuple could be of same data type or of di?erent data type. Let’s create a tuple where elements are of same data type: Now, let’s access the ?rst element from this tuple: Extracting the last element from this tuple: Now, we will go ahead and learn about Python lists. We have the perfect professional Python Course in Bangalore (https://intellipaat.com/python-certi?ca tion-training-online-bangalore/) for you! Python Lists A Python Lists (https://intellipaat.com/blog/tutorial/python-tutorial/python-lists/) is an ordered collection of elements. It can contain elements of di?erent data types unlike arrays. Now, let’s create a list with di?erent data types: https://intellipaat.com/blog/tutorial/python-tutorial/ 11/39

12. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Now, let’s do some operation on the list we created: Fetching the ?rst element from list: Adding an element while removing the other: The below line of code will return the length of the list: This will return the list in reversed order. Now, we will further look at Python Sets. Watch this Python Inheritance Tutorial Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 12/39

13. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python Sets Python sets (https://intellipaat.com/blog/tutorial/python-tutorial/python-sets/) are collection of unordered and unindexed items. Every element in a set is unique and it does contain duplicate values. Sets can be used to perform mathematical calculations such as union, intersection and di?erences. Creating a set: Here, in set ‘Age’, value “22” is appearing twice. Since, every element in set is unique, it will remove the duplicate value. Operations on Sets: 1.add :  This method adds element to the set if it is not present in it. 2.union: It returns union of two sets. https://intellipaat.com/blog/tutorial/python-tutorial/ 13/39

14. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat 3.intersection: This method returns the intersection of two sets. 4.di?erence: The di?erence of two sets(set1, set2) will return the elements which are present only in set1. Now, we will look at Python Dictionary. Watch this Python Tutorial Video for Beginners: Python Dictionary https://intellipaat.com/blog/tutorial/python-tutorial/ 14/39

15. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python Dictionaries (https://intellipaat.com/blog/tutorial/python-tutorial/python-dictionary/) is an unordered collection of data. The data in dictionary is stored as a key:value pair where key should not be mutable and value can be of any type. Creating a Dictionary: Accessing elements from a dictionary: Removing elements from a dictionary: Replacing elements in a dictionary: Going ahead in this python tutorial, we will learn about conditional statements. Watch this Python Face Recognition Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 15/39

16. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Conditional Statements Conditional statements are used for running a line of code or set of code if it satis?es a particular condition. A particular condition is provided, if it is true the code will execute otherwise the control will be passed on to next control statement. There are three types of conditional statements as illustrated in the above example: 1.If statement: Firstly, “if” condition is checked and if it is true the statements under “if” statements will be executed. If is false then the control will be passed on to the next conditional statements. 2.Elif statement: If the previous condition is false, either it could be “if” condition or “elif” after “if”, then the control is passed on to the “elif” statements. If it is true then the statements after “elif” condition will execute. There can be more than one “elif” statements. 3.Else statement: When “if” and “elif” conditions are false, then the control is passed on to the “else” statement and it will execute. Now, let’s go ahead and learn about loops in this python tutorial. https://intellipaat.com/blog/tutorial/python-tutorial/ 16/39

17. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Watch this Python Pandas Tutorial Video for Beginners: Loops If we have a block of code then statements in it will be executed sequentially. But, when we want a statement or a set of statements to be executed multiple times then we use loops. Types of loops: 1.While loop: We use this loop when we want a statement or a set of statement to execute as long as the Boolean condition associated with it satis?es. In while loop, the number of iterations depends on the condition which is applied to the while loop. 2.for loop: Here, we know the number of iterations unlike while loop. This for loop is also used for iterations of statements or a set of statements multiple times. https://intellipaat.com/blog/tutorial/python-tutorial/ 17/39

18. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat 3.nested loop: This type of loop consists of loop inside a loop. It can be for loop or can be a combination of  for and while loop. Now, we will learn about user-de?ned functions in this python tutorial. Watch this Python Django Tutorial Video for Beginners: User De?ned Function  https://intellipaat.com/blog/tutorial/python-tutorial/ 18/39

19. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat In any programming language, functions are a better and systematic way of writing. Functions provide us the liberty to use the code inside it whenever it is needed just by calling the function by it’s name. Syntax: def function()   Going ahead in this Python tutorial, we will learn about Exception Handling. Exception Handling Basically, an exception is an abnormal condition or error that occurs during the execution of a program. Whenever an exception occurs in a program, the execution of the program halts, and the further instruction of the programs are not executed. We need to handle these exceptions in order to ensure the normal execution of the program. Some of the common exceptions that occur in Python programs while executing are: 1. NameError: This error occurs when a name is not found. 2. ZeroDivisionError: When a number is divided by zero, ZeroDivisionError occurs. 3. IndentationError: This error occurs due to wrong indentation. 4. IOError: When Input Output operation fails, IOError occurs. So, in Python we use try, catch, except and ?nally to handle the exceptions. try-except block In Python program, the line of code that may throw exceptions are placed in try block. The try block should have except block with it to handle the exception. If any exception occurs in try block then the statements in except block will be executed. https://intellipaat.com/blog/tutorial/python-tutorial/ 19/39

20. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Syntax: try: #line of code except Exception: #line of code #rest of the code Example: Watch this Python Pygame Tutorial Video for Beginners: https://intellipaat.com/blog/tutorial/python-tutorial/ 20/39

21. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat else block In this case, the else block will be executed if no exception occurs. Syntax: try: #line of code except Exception: #line of code else: #If there is no exception then this piece of code will be executed Example: https://intellipaat.com/blog/tutorial/python-tutorial/ 21/39

22. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat ?nally block If we want a piece of code which cannot be skipped and it has to be executed under any circumstances, then we put that piece of code in ?nally block. Syntax: try: #line of code finally: #This piece of code will definitely be executed. Example: https://intellipaat.com/blog/tutorial/python-tutorial/ 22/39

23. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Watch this Text Mining in Python Tutorial Video for Beginners: Here, in this tutorial we learnt all the basics of Python which are variables, string, numbers, data types, tuples, lists, sets, dictionary, conditional statements, loops, user de?ned functions and exception handling. If you want to go through more concepts of Python in depth, this Python Tutorial consists of all the modules which will help you throughout your learning. Kick-start your career in Python with the perfect Python Course in New York (https://intellipaat.co m/python-certi?cation-training-online-new-york/) now! Frequently Asked Questions What is Python used for? https://intellipaat.com/blog/tutorial/python-tutorial/ 23/39

24. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python is used to develop di?erent types of applications such as web applications, GUI-based applications, software development applications, scienti?c and numeric applications, network programming, gaming and 3D applications, and business applications. Also, Python is widely used in the ?eld of data analytics and data science. How do I start learning Python? Is Python easy to learn? Can a beginner learn Python? How fast can I learn Python? Is Python the future? Is Java better than Python? What is the best IDE for Python? Next (https://intellipaat.com/blog/tutorial/python-tutorial/fundamentals-of-python/) Table of Contents Fundamentals of Python Python Fundamentals: Fundamentals of Python consists of discussion of basic building blocks of Python programming language. Here, “Fundamentals of Python” is divided into the following categories. And we will be discussing each topic separately. Statements Expressions Assignment Statements Indentations Comments Single-line comments Multi- line comment doc-staring comments Variables Constants Tokens Identi?ers Keywords Literals Operators Watch this Python Pandas Tutorial Video for Read More (https://intellipaat.c om/blog/tutorial/python-tutorial/fundamentals-of-python/) What is Python? What is Python? Python is a high-level, general-purpose programming language with an elegant syntax that allows programmers to focus more on problem-solving than on syntax errors. One of the primary goals of Python Developers is keeping it fun to use. Python has become a big buzz https://intellipaat.com/blog/tutorial/python-tutorial/ 24/39

25. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat in the ?eld of modern software development, infrastructure management, and especially in Data Science and Arti?cial Read More (https://intellipaat.com/blog/tutorial/python-tutorial/what-is-p ython/) Python Version Python History Lets start o? by looking at Python history. Python was developed at a time when many other dynamic and open-source programming languages like Tcl, Perl, Ruby etc. were also being actively developed and gaining popularity. Watch this Python Projects Video for Beginners: [videothumb class="col-md-12" id="g6iVdilJNMQ" alt="Python Tutorial" title="PythonTutorial"] The below-given image depicts the python logo then vs Python Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-version/) How to Download and Install Python? Python Installation and Setup Guide To get started working with Python 3, ?rst of all You will need to have access to the Python interpreter. There are numerous ways to accomplish this: You can directly obtain it from the Python Software Foundation Youbsite at Python.org. In operating systems like Linux, there will be a package manager which can be run Read More (https://intellipaat.com/blog/tutori al/python-tutorial/how-to-download-and-install-python/) Python Syntax Python Syntax - Python Coding with Examples Python was speci?cally designed to be a highly readable language The Python Syntax is made for ease of use and have made it one of the most used language among freshers as well as experts. Python syntax is English like which makes it much easier to write, read and understand a python script Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python- syntax/) Comments in Python Comments in Python In this module of Python tutorial, we will learn about Python comments. We will also learn about the di?erent types of Python comments and the way to use them. Writing Python Comments Comments in any programming language are used to increase the readability of the code. Similarly, in Python, when the program starts getting complicated, one of Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-comments/) Data Types in Python https://intellipaat.com/blog/tutorial/python-tutorial/ 25/39

26. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Data Types in Python In this module of the Python tutorial, we will learn about the Python data types. We will further learn about the dynamic typing feature in Python and di?erent data types in Python such as (Python Numbers, Python String, Python List, Python Tuple & Python Set) Python Data Types: An Overview One of the most crucial part Read More (https://intellipaat.co m/blog/tutorial/python-tutorial/python-datatypes/) Variables in Python – Global & Static Variables What Is a Variable in Python? A variable is a memory address that can change, and when the memory address cannot change then that variable is known as a constant. Variable is a name of the memory location where data is stored. Once a variable is stored, the space is allocated in memory. It de?nes a variable using a combination Read More (https://intellipaat.com/blog/tutorial/python-tut orial/python-variables/) Numbers in Python Numbers in Python In Python, the number data type is used to store numeric values. are an immutable data type. Being an immutable data type means that if we change the value of an already allocated number data type, then that would result in a newly allocated object. In this module, we will delve deeper into the Read More (https://intellipaat.com/blog/tutorial/python-tuto rial/python-numbers/) String in Python What is a Python String and String Function in Python? Python string is an ordered collection of characters which is used to represent and store the text-based information. Strings are stored as individual characters in a contiguous memory location. It can be accessed from both directions: forward and backward. Characters are nothing but symbols. Strings are immutable Data Types in Read More (https://i ntellipaat.com/blog/tutorial/python-tutorial/python-strings/) Python Lists List in Python Lists are Python’s most ?exible ordered collection object type. It can also be referred to as a sequence that is an ordered collection of objects that can host objects of any data type, such as Python Numbers, Python Strings and nested lists as well. Lists are one of the most https://intellipaat.com/blog/tutorial/python-tutorial/ 26/39

27. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat used and versatile Python Data Types. In this Read More (https://intellipaat.com/blog/tutorial/pyt hon-tutorial/python-lists/) Tuple in Python What is Tuple in Python Tuple data type in Python is a collection of various immutable Python objects separated by commas. Tuples are much similar to Python Lists, but they are syntactically di?erent, i.e., in lists we use square brackets while in tuples we use parentheses. In this module, we will learn all about the tuple data type in order Read More (https://intellipaat.com/blog/tutorial/pytho n-tutorial/python-tuple/) Python Sets Set in Python A set in Python is mutable, iterable, and does not have any duplicate elements. It is an unordered collection of elements which means that a set is a collection that stores elements of di?erent Python Data Types. Remember that a set in Python doesn’t index the elements in a particular order. Let us look at some of Read More (https://intellipaat.com/blog/tut orial/python-tutorial/python-sets/) Python Dictionary Dictionary in Python Python dictionary is yet another unordered collection of elements. The di?erence between Python dictionary and other unordered Python data types such as sets lies in the fact that unlike sets, a dictionary contains keys and values rather than just elements. Like lists, Python dictionaries can also be changed and modi?ed, but unlike Python lists the values in Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-dictionary/) Python Operators Operators in Python In Python, we have a set of special symbols that perform various kinds of operations such as logical operations, mathematical operations, and more. These symbols are called Python operators. For every symbol or operator, there is a unique kind of operation. The values on which the operators perform their respective operations are known as operands. In this Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-operators/) Type conversion in Python Type Conversion in Python with Examples https://intellipaat.com/blog/tutorial/python-tutorial/ 27/39

28. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat The process of converting a Python data type into another data type is known as type conversion. There are mainly two types of type conversion methods in Python, namely, implicit type conversion and explicit type conversion. Watch this video on Python: [videothumb class="col-md-12" id="e9p0_NB3WrM" title="PythonTutorial"] In this module, we will go through Read More (https://intellipaat.com/blo g/tutorial/python-tutorial/type-conversion-in-python/) alt="Python Tutorial" Python If, Else Statements Python Conditional Statements Control Flow Statements: If Else in Python Like other programming languages, there are some control ?ow statements in Python as well. Control ?ow refers to the order in which the program should be executed. Generally, the control ?ow of a program runs from top to bottom. However, the control ?ow statements break the general top-to-bottom order of execution by including Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-if-else -statements/) Python While Loop Control Flow Statements: Python While Loop in Python As discussed in the previous module, we know that Python, like other programming languages, consists of some control ?ow statements. One of the control ?ow statements that we have already studied about in the previous module is the Python if else statement. Another one of the control ?ow statements is loops. Loops Read More (https://intellipaat.com/b log/tutorial/python-tutorial/python-while-loops/) For Loop in Python Control Flow Statements – For Loop in Python 3 For loops in Python, just like any other language, are used to repeat a block of code for a ?xed number of times. For loop is yet another control ?ow statement since the control of the program is continuously transferred to the beginning of the for loop to execute the body Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-for-loops/) Python Functions Functions in Python Functions are used to group together a certain number of related instructions. These are reusable blocks of codes written to carry out a speci?c task. A function might or might not require inputs. Functions are only executed when they are speci?cally called. Depending on https://intellipaat.com/blog/tutorial/python-tutorial/ 28/39

29. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat the task a function is supposed to carry out, it might or might Read More (https://intellipaat.co m/blog/tutorial/python-tutorial/python-functions/) Lambda Function in Python Lambda Function in Python As discussed in the previous module, we know that there are three types of  Python Functions. One of them is an anonymous function. Anonymous functions are the functions without a name. Now, to de?ne a normal function, we use the keyword, ‘def’. Similarly, to de?ne an anonymous function, we use the keyword, ‘lambda’. Since anonymous functions are Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-lambda-function/) Python Built in Functions with Examples (https://intellipaat.com/python-certi?cation-training-online/) Built in Functions in Python Back in the Python Functions module, we learnt that there are three types of functions, namely, user-de?ned functions in Python, lambda functions in Python, and built in functions in Python. In this module, we will learn all that we need to know about built in functions in Python. So, without further ado, let’s get started. Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-built-in-functions/) Python Arrays What is an Array in Python 3? An array is a data structure that can contain or hold a ?xed number of elements that are of the same Python data type. An array is composed of an element and an index. Index in an array is the location where an element resides. All elements have their respective indices. Index of Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-arrays/) Python Classes and Objects Classes and Objects in Python https://intellipaat.com/blog/tutorial/python-tutorial/ 29/39

30. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python is an object-oriented language and almost every entity in Python is an object, which means that programmers extensively use classes and objects while coding in Python. Objects in Python are basically an encapsulation of Python variables and functions, that they get from classes. Watch this video on ‘Python Classes and Objects’: [videothumb class="col-md-12" id="c4EG6O299tY" Read More (https://intellipaat.com/blog/tutorial/python-tutori al/python-classes-and-objects/) Python Modules Modules in Python When we write a program in Python Interpreter or Python Shell and then exit from Shell, all de?nitions that we have included in our program get lost. We can’t use those de?nitions again. While practicing and learning Python, it may not seem as much of a problem, but in certain cases, for example, while working on a Read More (https://intellipaat.com/blog/tutorial/py thon-tutorial/python-modules/) Python Dates Python Datetime Module There is a Python module which is comprised of various functions to deal, manipulate, and work with dates and date objects. This module is known as the Python datetime module. We can simply start working with dates by importing this module and using the functions and classes it provides. In this module, we will learn about how Read More (https://intellipaat.c om/blog/tutorial/python-tutorial/python-dates/) Python JSON JSON in Python JSON is an acronym for JavaScript Object Notation. Python has a built-in package named ‘json’ to support . JSON is basically used for encoding and decoding data. The process of encoding the JSON data is referred to as serialization as it involves converting data into a series of bytes that can be stored and transmitted Read More (https://intellipaat.com/blog/tutori al/python-tutorial/python-json/) Python RegEx What is Regular Expression in Python? Python Regular Expressions or Python RegEx are patterns that permit us to ‘match’ various string values in a variety of ways. A pattern is simply one or more characters that represent a set of possible match characters. In regular expression matching, we use a character (or a https://intellipaat.com/blog/tutorial/python-tutorial/ 30/39

31. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat set of characters) to represent the strings Read More (https://intellipaat.com/blog/tutorial/python- tutorial/python-regex-regular-expressions/) PIP Python What is PIP in Python? PIP is a Python package management system which can also be used to install various software written in Python and Python modules and their respective dependencies. Watch this video on ‘Python Classes and id="5GYeia8IRbg" alt="Data Warehouse Tutorial" title="PythonTutorial"] In this module, we will learn about PIP, covering the following topics: How to Install Read More (https://intellipaat. com/blog/tutorial/python-tutorial/python-pip/) Objects’: [videothumb class="col-md-12" Python File Handling File Handling in Python - Learn Python File Handling for Beginners Python ?le handling operations also known as Python I/O deal with two types of ?les. They are: Text ?les Binary ?les Even though the two ?le types may look the same on the surface, they encode data di?erently. A text ?le is structured as a sequence of lines. And, Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-?le-handling-i-o/) Exception Handling in Python Python Exception Handling What is Exception Handling in Python? Well, before we get you started on Exception Handling in Python, let’s learn about it from the beginning. It is obvious for a developer to encounter a few errors or mistakes in their code ?le. But what if developers could minimize these errors? Wouldn’t it be great? There are exception handling Read More (https://intellipaat. com/blog/tutorial/python-tutorial/python-exception-handling/) Enumerate Python What Is Enumerate in Python? Before we jump into understanding What is enumerate in Python, let us unfold the chapter by ?nding out what enumerate Python is and what it means to enumerate something. The term ‘enumerate’ is commonly used in mathematics and computer science, which is nothing but ordered listing of all elements in a collection. Watch this Python Read More (http s://intellipaat.com/blog/tutorial/python-tutorial/python-enumerate/) Queue in Python What is Python Queue? https://intellipaat.com/blog/tutorial/python-tutorial/ 31/39

32. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Python queue is an important concept in data structure. Queue in Python is nothing but data item containers. With the help of queue in Python, we can control the ?ow of our tasks. Say, we are manipulating data that are collected from a website and then writing the manipulated data into a .txt ?le. Now, if Read More (https://intellipaat.com/blog/tutorial/python-tu torial/python-queue/) Python NumPy Tutorial: Learn Python NumPy from Experts Python NumPy Tutorial for Beginners In this Python NumPy Tutorial, we will be covering One of the robust and most commonly used Python libraries i.e. Python NumPy. Python library is a collection of script modules which are accessible to a Python program. It helps simplify the programming process and remove the need to rewrite commonly used commands again and again. Read More (https://i ntellipaat.com/blog/tutorial/python-tutorial/numpy-tutorial-python/) SciPy Tutorial What is SciPy in Python: Learn with an Example Let’s start o? with this SciPy Tutorial with an example. Scientists and researchers are likely to gather enormous amount of information and data, which are scienti?c and technical, from their exploration, experimentation, and analysis. Dealing with such huge amount of data becomes a hindrance to them. That is, calculating and computing Read More (https://inte llipaat.com/blog/tutorial/python-tutorial/python-scipy/) Scikit learn Python Tutorial Introduction to Python Scikit-learn Python Scikit-learn is a free Machine Learning library for Python. It’s a very useful tool for data mining and data analysis and can be used for personal as well as commercial use. Python Scikit-learn lets users perform various Machine Learning tasks and provides a means to implement Machine Learning in Python. It needs to work with Read More (https://int ellipaat.com/blog/tutorial/python-tutorial/scikit-learn-tutorial/) Python Pandas Tutorial What is Pandas in Python? So, lets now tell you What is Pandas in Python. Pandas is a Python library which is a simple yet powerful tool for Data Science. Python Pandas is one of the most widely used Python packages. This package comprises many data structures and tools for e?ective data manipulation and analysis. Python Pandas is used everywhere including commercial Read M ore (https://intellipaat.com/blog/tutorial/python-tutorial/python-pandas-tutorial/) https://intellipaat.com/blog/tutorial/python-tutorial/ 32/39

33. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat Matplotlib Python Tutorial – Python Matplotlib Examples – Intellipaat What is Matplotlib in Python? Well, you’ll need to read on in order to get an answer to that question. Handling of data is a skillful art. In the trending technological world, there is a massive amount of data that is being consumed, as well as wasted. Thus, handling this data in a rather e?ective Read More (https://intellipaat.com/blog/tutorial/python-tutorial/python-matplotlib/) Python Cheat Sheet Basics Python Basics Cheat Sheet Are you ?nding di?cult in remembering all the syntax that you need to work with Python for Data Science? Guys, don’t worry if you are a beginner and have no idea about how Python works, this Python for Data Science cheat sheet will give you a quick reference of the basics that you must know to Read More (https://intellipaat.com/blog/tutorial/python-tutorial/p ython-cheat-sheet-basics/) Data Structures with Python Cheat Sheet Introduction: Data Structure is a collection of data types and set of rules with a format of organizing, managing and storage which can be used for e?cient accessing and modi?cation. Data structures are used in every ?eld for storing and organizing data in the computer. You can also download the printable PDF of this Data Structure cheat sheet This Python Read More (h ttps://intellipaat.com/blog/tutorial/python-tutorial/data-structures-with-python-cheat-sheet/) Numpy Cheat Sheet Python NumPy Cheat Sheet Whether you are a professional and have been working with Python for quite some time or you are a fresher and have just started using python, you must have heard of NumPy, a python library for numerical operations. It is extensively used but regardless of how popular it is, wouldn’t you agree that it’s practically not possible Read More (https://intellipaat.c om/blog/tutorial/python-tutorial/numpy-cheat-sheet/) Scikit-Learn Cheat Sheet Python Scikit-Learn Cheat Sheet If you are ?nding it hard to remember all the di?erent commands to perform di?erent operations in Scikit Learn then don’t worry, you are not alone, it happens more often than you would think. Download the printable PDF of this cheat sheet At Intellipaat, we make https://intellipaat.com/blog/tutorial/python-tutorial/ 33/39

34. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat sure that our learners get the best out of our Read More (https://intellipaat.com/blog/tutorial/pyt hon-tutorial/scikit-learn-cheat-sheet/) Pandas Cheat Sheet Python Pandas Cheat Sheet Simple, expressive and arguably one of the most important libraries in Python, not only does it make real-world Data Analysis signi?cantly easier but provides an optimized feature of being signi?cantly fast. It is common that for those who just started Data Science journey with Python and Pandas library might ?nd it overwhelming to remember all those functions Read More (https://intellipaat.com/blog/tutorial/python-tutorial/pandas-cheat-sheet/) Python List Comprehension List Comprehension in Python Previously in this Python tutorial, we have already learned what Python lists are and how to use them. We have also understood list comprehension Python. In this section, we will go deep into list comprehension Python and understand why we need it. Watch this Python Projects Video for Beginners: [videothumb class="col-md-12" id="g6iVdilJNMQ" alt="Python Tutorial" title="PythonTutorial"] Following Read More (https://intellipaat.com/blog/tutorial/python- tutorial/python-list-comprehension/) Web Scraping Python Tutorial for Beginners Web Scraping Using Python Web scraping Python has been around for a while now, but it has become more popular in the past decade. Web Scraping using Python is very easy. With the help of Python, extracting data from a web page can be done automatically. In this module, we will discuss web scraping in Python from scratch. Also, this Read More (https://intellipaat.com/blog/tutorial/p ython-tutorial/python-web-scraping-tutorial/) Next (https://intellipaat.com/blog/tutorial/python-tutorial/fundamentals-of-python/) Recommended Videos https://intellipaat.com/blog/tutorial/python-tutorial/ 34/39

35. 9/26/2019 Python Tutorial for beginners – Learn Python Programming language basics - Intellipaat (1-pJ3IPRqiD2M) (2-5GYeia8IRbg) (3-mNdbcHECGN4) 5 thoughts on “Python Tutorial – Learn Python 3 Programming Online” April 9, 2019 at 12:51 am (https://intellipaat.com/blog/tutorial/python-tutorial/#comment- 8099) Thanks michele says: Reply August 24, 2019 at 3:28 am (https://intellipaat.com/blog/tutorial/python-tutorial/#comment- 12378) Great job for students Rohit says: Reply September 3, 2019 at 3:27 pm (https://intellipaat.com/blog/tutorial/python- tutorial/#comment-8086) Excellent tutorial which is highly appreciated. Thanks!!!! I have learned a lot from your tutorials. Dev says: Reply September 5, 2019 at 4:10 pm (https://intellipaat.com/blog/tutorial/python- tutorial/#comment-8087) nice tutorial… The concepts are explained in simple and understanding manner…. It’s a best way for python learning……… It’s very useful, those are learning in online……. Ravi A says: Reply September 5, 2019 at 7:41 pm (https://intellipaat.com/blog/tutorial/python- tutorial/#comment-8085) Thanking you for your time sharing your intelligence with such kind respect for new learners. Its a good guide for python beginners. Kartik says: Reply Leave a Reply Your email address will not be published. Required ?elds are marked * Comment https://intellipaat.com/blog/tutorial/python-tutorial/ 35/39

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