Table of contents
1.
Introduction
2.
Python is Both Compiled as well as Interpreted
3.
Advantages of Interpreted Languages
4.
Disadvantages of Interpreted Languages
5.
Frequently Asked Questions
5.1.
Can Python be used for high-performance applications despite being an interpreted language?
5.2.
Is Python suitable for mobile development?
5.3.
How can I protect Python code from being easily read and modified?
6.
Conclusion
Last Updated: May 6, 2024
Easy

Python is Interpreted Language

Career growth poll
Do you think IIT Guwahati certified course can help you in your career?

Introduction

Python is a popular programming language used by developers worldwide. It is known for its simplicity, readability & versatility. Python code is executed line by line, which makes it an interpreted language. 

Python is Interpreted Language

In this article, we will understand what it means for Python to be interpreted, the advantages & disadvantages of interpreted languages, and how Python's interpretation process works under the hood. 

Python is Both Compiled as well as Interpreted

When you write Python code & run it, the code is first compiled into bytecode. This bytecode is then interpreted by the Python virtual machine (PVM) to execute the program. The compilation step is done automatically & transparently in the background.

The Python compiler reads the source code, checks for syntax errors, & generates bytecode instructions. These bytecode instructions are lower-level & more compact than the original source code. They are stored in .pyc files, which are binary files containing the bytecode.

Once the bytecode is generated, the Python interpreter takes over. It reads the bytecode instructions one by one & executes them. The interpreter translates each bytecode instruction into corresponding machine code that the computer's processor can understand & run.

This combination of compilation & interpretation allows Python to provide the benefits of both approaches. The compilation step helps catch syntax errors early & generates optimized bytecode, while the interpretation step allows for flexibility & ease of use.

Here's a simple example to illustrate the process:

# Python source code
print("Hello, World!")


When you run this code, the following steps occur:

  1. The Python compiler compiles the source code into bytecode.
     
  2. The bytecode is loaded into the Python virtual machine.
     
  3. The Python interpreter executes the bytecode, which prints "Hello, World!" to the console.
     

So, while Python is primarily known as an interpreted language, it actually involves a compilation step before interpretation. This hybrid approach contributes to Python's popularity & success as a programming language.

Advantages of Interpreted Languages

  1. Ease of Debugging & Testing: Since interpreted languages execute code line by line, errors are easier to trace & debug. If there’s an issue, the interpreter stops at the point of error & provides feedback about the issue. This immediate response can help programmers fix errors quickly compared to compiled languages, where errors are often only revealed after the entire program is compiled.
     
  2. Platform Independence: Code written in interpreted languages is generally more portable across different operating systems. For example, Python code can run on any machine that has a Python interpreter, regardless of whether it’s running Windows, Linux, or macOS. This eliminates the need to modify code for different platforms, saving time & reducing development costs.
     
  3. Dynamic Typing: Interpreted languages typically use dynamic typing, which means that you don’t need to explicitly declare the type of a variable when you write your code. This can speed up the coding process & make the language easier to use, especially for beginners.
     
  4. Rapid Development: The absence of a compilation phase speeds up the development process, as changes can be tested immediately. This is advantageous in fast-paced development environments where quick prototyping & iterative testing are crucial.
     
  5. Easy to Learn: The syntax in interpreted languages is often simpler & more straightforward than in compiled languages. This simplicity makes interpreted languages like Python ideal for beginners who are learning programming concepts for the first time.
     
  6. Extensive Libraries & Community Support: Languages like Python have a vast ecosystem of libraries & frameworks that can be easily imported & used in your projects. This extensive support reduces the amount of code developers need to write themselves & provides ample resources for learning and troubleshooting.

Disadvantages of Interpreted Languages

  1. Slower Execution Speed: Because interpreted languages process code line by line at runtime, they generally run slower than compiled languages, which convert code directly into machine language before execution. This can be a significant limitation for applications that require high performance, such as video games or large-scale computational simulations.
     
  2. Less Efficient Memory Usage: Interpreted languages often use more memory than compiled languages. This is because they need to maintain additional structures to support features like dynamic typing & garbage collection at runtime. For large applications, this increased memory consumption can lead to reduced performance.
     
  3. Dependency on Interpreter: To run a program written in an interpreted language, the target system must have the appropriate interpreter installed. This dependency can be a hurdle in environments where installing new software is restricted or where specific versions of the interpreter are required.
     
  4. Security Risks: Since interpreted code must be distributed in a form that is closer to the original source code, it can be easier for malicious users to read & potentially exploit. This makes it crucial to consider security implications, especially for code that will be run in untrusted environments.
     
  5. Limited Access to Hardware Features: Interpreted languages typically provide a higher level of abstraction, which can limit direct access to system hardware features. This can prevent developers from optimizing their applications to the same extent as with lower-level languages like C or C++.
     
  6. Performance Inconsistencies: The performance of interpreted languages can vary significantly depending on the interpreter’s implementation. This can lead to inconsistencies, especially when deploying applications across different environments or when updates to the interpreter change how code is executed.

Frequently Asked Questions

Can Python be used for high-performance applications despite being an interpreted language?

While Python is not as fast as compiled languages, optimizations such as using PyPy, a just-in-time compiler, or integrating C-based extensions can significantly improve performance for demanding applications.

Is Python suitable for mobile development?

Python is not traditionally used for mobile development due to performance issues and lack of native support on mobile platforms. However, frameworks like Kivy and BeeWare allow Python developers to build mobile apps.

How can I protect Python code from being easily read and modified?

To secure Python code, you can use tools like Cython to compile your Python code to C, providing a layer of obfuscation, or use a Python obfuscator that makes the bytecode harder to understand.

Conclusion

In this article, we learned that Python is an interpreted language, but it also involves a compilation step. We explored how Python code is first compiled into bytecode & then interpreted by the Python virtual machine. We discussed the advantages of interpreted languages, including ease of use, rapid development, platform independence, dynamic typing, extensive libraries & frameworks, interactive development, & suitability for scripting & automation tasks.

You can refer to our guided paths on the Coding Ninjas. You can check our course to learn more about DSADBMSCompetitive ProgrammingPythonJavaJavaScript, etc. Also, check out some of the Guided Paths on topics such as Data Structure andAlgorithmsCompetitive ProgrammingOperating SystemsComputer Networks, DBMSSystem Design, etc., as well as some Contests, Test Series, and Interview Experiences curated by top Industry Experts.

Live masterclass