tamil-utils 0.4.0

Tiny Tamil text utilities: normalize, tokenize, stopwords, graphemes, n-grams, syllables, Tamil collation; dataset preprocessor; optional spaCy tokenizer hook.

tamil-utils

Tiny Tamil-first text utilities that make Unicode correctness & tokenization boringly reliable.

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Features

• Core: normalize, tokens, remove_stopwords, graphemes, sents, Tamil⇄ASCII numerals, syllables (approx), Tamil collation (ISO-15919 key)

• Counts: ngrams, word_counts (uni/bi/tri-grams, optional stopwords)

• Pipelines: JSONL preprocessor (CLI + Python) for RAG/ML corpora

• Integrations (optional):

  • spaCy tokenizer hook to mirror tamil_utils.tokens
  • Hugging Face Datasets export helper

Docs: https://arulnidhii.github.io/tamil-utils/

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Install

pip install tamil-utils

# optional extras
pip install "tamil-utils[spacy]"   # spaCy hook
pip install datasets               # HF datasets helper

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Quick start

from tamil_utils import (
    normalize, tokens, remove_stopwords, graphemes, sents,
    to_arabic_numerals, syllables, sort_tamil, word_counts
)

s = "இது ஒரு சோதனை 👩🏽‍💻 ௨௦௨௫"

print(tokens(s))                                # ['இது','ஒரு','சோதனை','👩🏽‍💻','௨௦௨௫']
print(remove_stopwords(tokens(s), preset="ta")) # ['சோதனை','👩🏽‍💻','௨௦௨௫']
print(graphemes("👩🏽‍💻"))                       # ['👩🏽‍💻']
print(sents("இது ஒன்று. இது இரண்டு? சரி!"))      # ['இது ஒன்று.', 'இது இரண்டு?', 'சரி!']
print(to_arabic_numerals("௨௦௨௫"))                 # "2025"
print(syllables("தமிழ்"))                         # approx syllable-ish groups
print(sort_tamil(["இலங்கை","ஆதி","அடி"]))         # ['அடி','ஆதி','இலங்கை']
print(word_counts("தமிழ் NLP தமிழ் NLP", n=2, top=3))

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CLI

# JSONL preprocessor (one record per line)
python -m tamil_utils.cli preprocess --numerals ar --rmstop < input.txt > out.jsonl

# Word/n-gram counts
python -m tamil_utils.cli freq -n 2 --top 5 "தமிழ் NLP தமிழ் NLP"

# Tamil collation sort (ISO-15919 key)
python -m tamil_utils.cli sort "இலங்கை" "ஆதி" "அடி"

Windows PowerShell

When piping Tamil text, prefer UTF-8 files or run with python -X utf8.

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spaCy tokenizer (optional)

import spacy
from tamil_utils.spacy_hook import install_tamil_tokenizer

nlp = spacy.blank("xx")
install_tamil_tokenizer(nlp)
[t.text for t in nlp("இது ஒரு சோதனை 2025")]
# ['இது','ஒரு','சோதனை','2025']

---

Hugging Face Datasets (optional)

from tamil_utils.hf_export import to_hf_dataset  # requires: pip install datasets

records = [{"text": "இது ஒரு சோதனை 2025",
            "tokens": ["இது","ஒரு","சோதனை","2025"]}]
ds = to_hf_dataset(records)
print(ds)

What’s new in v0.4” bullet:

Corpus utilities: normalize_punct, dedup_lines, filter_by_length, window_sents

New CLI: corpus-dedup, corpus-filter, corpus-windows

License

MIT © Arulnidhi Karunanidhi