Python

Reviewed by Alexis Morain · Updated July 14, 2026

Python is an open-source, readable and versatile programming language, dominant in data science, AI and automation. Entirely free.

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SaaS Radar Review

9/10

An essential language, king of data and AI, whose readability and ecosystem richness fully justify its dominance.

Readable, accessible syntax
King of data science and AI
Less performant than compiled languages

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Python is one of the most popular programming languages in the world, open source and maintained by the Python Software Foundation. Known for its readability and simplicity, it has established itself across very varied fields: web development, automation, data science, machine learning and artificial intelligence.

What is Python used for?

Python is used for almost everything: automation scripts, web back-ends, data analysis, scientific computing and above all artificial intelligence, where it is the reference language thanks to libraries like NumPy, pandas and PyTorch. Its clear syntax makes it an excellent first language and a professional tool alike.

Python or another language?

Python favors readability and development speed over raw performance. For data, AI or prototyping, it is hard to beat; for very high-performance systems, other languages like Rust may be preferred. The two often coexist.

How much does Python cost?

Python is entirely free and open source, under a free license. The language, interpreter and standard library carry no cost. The huge ecosystem of third-party packages, distributed via its package manager, is also mostly free and open.

Pros & Cons

What we love

Readable, accessible syntax
King of data science and AI
Gigantic library ecosystem
Entirely free and open source

What could be better

Less performant than compiled languages
Environment management sometimes painful
Not ideal for native mobile

Key features of Python

Versatility

Web, data, AI, automation, scripts

Readability

Clear, accessible syntax

Data and AI ecosystem

NumPy, pandas, PyTorch, etc.

Cross-platform

Runs on all systems

Python pricing

Python is entirely free and open source, released under a free license by the Python Software Foundation. The language, interpreter and vast standard library are free, with no paid tier. The third-party package ecosystem, huge and distributed via its package manager, is also overwhelmingly free, which partly explains its massive adoption.

Free plan / trial

Entirely free and open source.

Open source

Free language and interpreter · Complete standard library · Free package ecosystem

Free

Pricing verified on July 14, 2026

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Who is Python for?

Best for

Data science and machine learning
Automation and scripts
Beginners and prototyping

Not recommended for

Very high-performance systems
Native mobile applications

Want to try Python?

Head to the official site and the current offer.

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Frequently asked questions about Python

Is Python free?▼

Yes, Python is entirely free and open source under a free license. The language, interpreter and standard library are free, as are most third-party packages.

Is Python good for artificial intelligence?▼

Yes, Python is the reference language for AI and data science, thanks to libraries like NumPy, pandas, scikit-learn and PyTorch.

Categories:

Development & Tech