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fast-writer

CLI Tools for writing data

1.0.3
PyPI
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fast-writer

fast-writer๋Š” Polars ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ตฌ์ถ•๋œ ์ปค๋งจ๋“œ ๋ผ์ธ ์ธํ„ฐํŽ˜์ด์Šค(CLI) ๋„๊ตฌ๋กœ, ๋‹ค์–‘ํ•œ ํŒŒ์ผ ํ˜•์‹(CSV, TSV, Excel, Parquet)์„ ๋น ๋ฅด๊ณ  ํšจ์œจ์ ์œผ๋กœ ์ฒ˜๋ฆฌํ•˜๋„๋ก ์„ค๊ณ„๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ํŒŒ์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ, ํ˜•์‹ ๋ณ€ํ™˜, ์—ฌ๋Ÿฌ ํŒŒ์ผ ๋ณ‘ํ•ฉ ๋“ฑ์˜ ๊ธฐ๋Šฅ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค.

์ฃผ์š” ๊ธฐ๋Šฅ

  • ํŒŒ์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ: ํŒŒ์ผ์˜ ์ฒ˜์Œ(head) ๋˜๋Š” ๋งˆ์ง€๋ง‰(tail) ๋ช‡ ์ค„์„ ๋น ๋ฅด๊ฒŒ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
  • ํŒŒ์ผ ํ˜•์‹ ๋ณ€ํ™˜: CSV, TSV, Excel (.xlsx), Parquet ํŒŒ์ผ ๊ฐ„์˜ ์ƒํ˜ธ ๋ณ€ํ™˜์„ ์ง€์›ํ•ฉ๋‹ˆ๋‹ค.
  • ํŒŒ์ผ ๋ณ‘ํ•ฉ: ์—ฌ๋Ÿฌ ํŒŒ์ผ์„ ํ–‰(row) ๊ธฐ์ค€์œผ๋กœ ๋ณ‘ํ•ฉํ•ฉ๋‹ˆ๋‹ค. ํŠน์ • ํŒŒ์ผ๋“ค์„ ์ง€์ •ํ•˜๊ฑฐ๋‚˜ ํด๋” ๋‚ด์˜ ๋ชจ๋“  ํŒŒ์ผ์„ ๋ณ‘ํ•ฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์„ค์น˜

pip install fast-writer
git clone https://github.com/jinwook-chang/fast-writer
cd fast-writer
pip install .

์‚ฌ์šฉ๋ฒ•

fast-writer --help

ํŒŒ์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ

# example.csv ํŒŒ์ผ์˜ ์ฒ˜์Œ 5์ค„ ๋ณด๊ธฐ
fast-writer head output/iris.csv

# data.parquet ํŒŒ์ผ์˜ ๋งˆ์ง€๋ง‰ 10์ค„ ๋ณด๊ธฐ
fast-writer tail head output/iris.csv -n 10

ํŒŒ์ผ ํ˜•์‹ ๋ณ€ํ™˜

# input.csv๋ฅผ output.parquet๋กœ ๋ณ€ํ™˜
fast-writer convert output/iris.csv parquet -o output/iris.parquet

# data.xlsx๋ฅผ data.csv๋กœ ๋ณ€ํ™˜ (์ถœ๋ ฅ ํŒŒ์ผ๋ช… ์ž๋™ ์ง€์ •)
fast-writer convert output/iris.csv tsv

ํŒŒ์ผ ๋ณ‘ํ•ฉ

# file1.csv์™€ file2.csv๋ฅผ merged.csv๋กœ ๋ณ‘ํ•ฉ
fast-writer merge files output/iris.csv output/iris2.csv -o output/merged.csv

# ํด๋” ๋‚ด์˜ ๋ชจ๋“  .csv ํŒŒ์ผ์„ all_data.parquet๋กœ ๋ณ‘ํ•ฉ
fast-writer merge folder ./output --pattern "*.csv" -o output/all_data.parquet

Keywords

polars

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