Python Basics: Translators, Compilers and Interpreters Explained

Hello everyone, welcome back to CybercityHelp. In our today’s article, we are going to discuss about compilers and interpreters. We will focus on their definitions, advantages, disadvantages, and how Python is related to these terms. So let’s get started.

Before learning about compilers and interpreters, we first need to understand some basic terms like coding language and programming language. So let’s understand them below.

What is Coding and Programming Language?

Coding is nothing but a finite set of instructions that we give to a computer in a language it can understand. And the language that computers understand is known as a programming language. A programming language contains instructions represented using letters, symbols, numbers, and grammatical structures.

We have explained the meaning here in short, not in detail, because we have already covered coding language and programming language deeply in our previous article. So if you are unsure about these terms, we recommend reading that article for better understanding. Here is the link to the previous article: Python: What it is Exactly, It’s Applications and Usages.

How do Computers Understand Programming Language?

You might have heard that computers understand data only in the form of zeros and ones, known as binary numbers. And yes, that’s correct. Computers understand only binary, where zero represents OFF and one represents ON.

But how do they understand alphabets, numbers, and symbols? They understand them through a special type of software that works as a translator between the programming language and binary language, also known as machine language.

What is a Translator?

A translator is basically an intermediary software between the programming language and machine language. It converts the entire programming language into machine language that is, into zeros and ones, so that the computer can understand and execute the instructions. This is how computers understand programming languages with the help of translators.

Types of Translators

There are mainly two types of translators: a compiler and an interpreter. You might have heard these terms before, but many people are unaware of the exact difference. Let’s understand them one by one.

What is a Compiler?

A compiler is software that translates a programming language into machine language. But how does it work? A compiler takes the entire code at once and converts it into machine language. After the translation, it begins executing the entire code in one go. That is how a compiler works.

What is an Interpreter?

An interpreter works differently. Instead of taking the whole code at once, it reads the code line by line. It executes each line and then moves on to the next. Because of this approach, compilers are generally faster, while interpreters may be slower but have their own advantages.

Advantages and Disadvantages

Both compilers and interpreters have their pros and cons.

A compiler is fast because it processes the entire code at once. But in some situations like if your program is long and has an error then compiler might take longer time to execute whole code and then only tells you that an error exists, not exactly where the error is. This makes debugging difficult.

On the other hand, an interpreter reads the code line by line. If there is an error in any particular line, it immediately stops execution and tells you exactly where the error occurred. This makes debugging much easier compared to compilers.

How is Python Related to These Terms?

Python is related to these terms because Python is an interpreted language, which means it uses an interpreter. In Python, each line of code is executed one by one, and if any error occurs, Python immediately tells you the exact line where the issue happened. This is one of the major advantages of interpreted languages.

So this was all about compilers and interpreters. We won’t go too deep into this topic for now because this basic understanding is enough at this stage. In our next article, we will discuss the installation process of Python and see how to install Python effectively on your computer, along with the basic system requirements.

We hope you understood this article well. If not, feel free to tell us where you got stuck. You can ask your doubts in the comment section, and we will try to help you as soon as possible. So yeah, that’s all for today’s article. Thank you so much for reading till here!

“So keep learning, keep growing!”