Taking Baby Steps into the Python World

9 Critical Concepts of Python for a Beginner

Rinu Gour
Rinu Gour
Feb 13 · 5 min read

The canonical, “Python is a great first language”, elicited, “Python is a great last language!”
- Noah Spurrier


The one programming language that is currently ruling the IT world is undoubtedly Python. The dominance Python has had in the IT sector for the past few years has left a great impression on all the programmer's communities across the globe. And not to your surprise, Python will have the same impact for many more years to come.

Be it Data Science, Machine Learning, Artificial Intelligence, and many more, Python has been at the heart of all these fascinating fields.

And if you’re willing to learn Python, then I will congratulate you because you’re thinking in the right direction.
Python programmers are currently among the professionals that are in high demand and are highly paid as well.

Are you already a Python Developer?
Then you must try your hands on these-

As a beginner, there are a few concepts that are often overlooked by most of the aspirants which they later regret ignoring.
And Why not-

“Python has got no limits.”

Do you want to become a Python Developer?
If YES, I bet you won’t be able to be one if you do not learn these concepts.

Crucial Python Concepts for Beginners


Every language that we speak is ruled by its grammar. Similarly, a programming language is ruled by its syntax. Syntax, by definition, is a set of rules on the basis of which programs are developed in every programming language. You cannot even make a “Hello World” program in Python if you’re not aware of its syntax. And Python is well known for its simple syntax.


Variables are building blocks of any program. Variables in simple terms are containers that are used to store data values. These variables can be manipulated and referenced according to the need of our program. Their sole objective is to label and store data in memory. This data can then be used throughout your program.


It is defined as a user-defined unique name provided to any entity. It can be a variable, a function, a class, a module, or any other object. It is simply the names given to the basic building blocks of any Python programs.


Python operator is a symbol that performs an operation on one or more variables. These operations are carried out on operands in order to get a particular result. There are mainly 7 different kinds of operators in Python.

The two of the most commonly used operators are as follows-

  1. Bitwise Operator
    Python bitwise operator performs operations on the bits of the given number(s). The bitwise operators work on the stream of bits which implies that they work directly at the binary level. It includes And, Or, Xor, 1’s complement, Left-shift, and Right-shift.
  2. Comparison Operator
    A comparison operator in python compares the values of two operands and returns True or False based on whether the condition is met or not respectively. It is also known as a relational operator.
    These are categorized into 6 types, including and limited to- Less than(<), Greater than(>), Less than or equal to(<=), Greater than or equal to(>=), Equal to(==) and Not equal to (!=).


Unlike C++ or Java, Python Programming Language doesn’t facilitate arrays. So, to hold a sequence of values, Python offers the ‘list’ class. A Python list is simply a collection of values.

Python tuples are exactly similar to the lists with the only difference being that tuples are immutable.


Python booleans is a data structure that is capable of storing only two values either true or false. Python has a lot of in-built functions that return a boolean value.


This is possibly one of the most important concepts to learn in Python as a beginner. Collections in Python are defined as containers that are competent for storing groups of data. They are unordered and unindexed data structures.

They are basically classified into 2 different types-

  1. Sets
  2. Dictionary


Since Python is an object-oriented programming language, everything in it revolves around classes and objects. With the help of these two concepts, we can model the real-world. A class is a blueprint of objects and it does not have value for itself. Everything in Python is an object.

Two of the most important concepts of Python — and


Inheritance is one of the most important concepts of Object-oriented programming. As we humans acquire some traits of our parents, inheritance provides classes with the ability to pass on some of its properties to its child class. Inheritance allows us to establish a relationship between classes.

Wrapping Up!!

As the old saying goes, you won’t be able to build a tall building unless your foundation is strong enough. The same is the thing that is needed to be kept in mind whenever you decide to learn a new programming language. Python is an easy language to learn and guarantees to safeguard your whole career. But, only is you’re well versed with the above-mentioned concepts.


Thanks for reading!!

Happy Learning :-)


A platform that provide all tutorial, interview questions and quizzes of the latest and emerging technologies that are capturing the IT Industry.

Rinu Gour

Written by

Rinu Gour

Data Science Enthusiast | Research writer | Blogger | Entrepreneur



A platform that provide all tutorial, interview questions and quizzes of the latest and emerging technologies that are capturing the IT Industry.

Welcome to a place where words matter. On Medium, smart voices and original ideas take center stage - with no ads in sight. Watch
Follow all the topics you care about, and we’ll deliver the best stories for you to your homepage and inbox. Explore
Get unlimited access to the best stories on Medium — and support writers while you’re at it. Just $5/month. Upgrade