nltk

name	nltk
description	NLTK natural language toolkit. Use for NLP.

NLTK

NLTK is the classic library for teaching and researching NLP. While slower than spaCy, it offers comprehensive linguistic data.

When to Use

• Education: Learning how tokenizers or stemmers work from scratch.
• Lexical Resources: Access to WordNet, FrameNet, and huge corpora.
• Low-level Text Processing: Porter/Snowball stemmers.

Core Concepts

Corpora

nltk.download('gutenberg'). Access to classic texts.

Tokenization

Splitting text into words/sentences.

Best Practices (2025)

Do:

• Use for Education: Excellent for linguistics classes.
• Use for Lexical Lookups: WordNet interface is still useful.

Don't:

• Don't use in Production: Use spaCy or Hugging Face. NLTK is slow and string-based.

References

• NLTK Documentation