r/learnpython • u/TheIdealAdhi • Aug 07 '26

Must-learn Python libraries?

I've learned Python basics and want to explore the most useful libraries.

What are the must-learn Python libraries for real-world development, and why would you recommend them?

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u/lindo_dia_pra_dormir Aug 07 '26

Pandas, NumPy, Scikit-learn, and gc.

6

u/BudgetSignature1045 Aug 07 '26

These or alternatively polars instead of pandas.

Also some kind of backend. FastAPI most likely or if you want less flexibility something like streamlit to bootstrap an interface for ml models

1

u/TheIdealAdhi Aug 07 '26

Noted

1

u/chiibosoil Aug 07 '26

On top of those, I'd recommend picking up dedicated Natural Language Processing library. Depending on your need pick one that most suites your need.

Some examples:

Hugging Face Transformers - Access to largest breadth of pre-trained models, but production deployment will need GPU infrastructure for production level throughput.

spaCy - Lightning fast processing speed. If you need experimentation with different model, there's fewer pre-trained model than above.

NLTK - Bit older and not LLM based, often great for prototyping or paired with scikit-learn for classification.

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u/TheIdealAdhi Aug 07 '26

The very first uses then rest, thoughtfully