[Python] polars.LazyFrame.sink_csv does not give CRLF line termination

I have a Python file

import polars as pl
import requests
from pathlib import Path

url = "https://raw.githubusercontent.com/leanhdung1994/files/main/processedStep1_enwiktionary_namespace_0_43.ndjson"
workingDir = r"E:\test"
outNdjson = Path(workingDir, "wiktionary.ndjson")
outTxt = Path(workingDir, "wiktionary.txt")

# Download
resp = requests.get(url)
resp.raise_for_status()

# Save
with open(outNdjson, "wb") as f:
f.write(resp.content)

# Read with Polars
lf = pl.scan_ndjson(outNdjson)
lf.select("html").sink_csv(outTxt,
include_header=False,
maintain_order=True,
quote_style="never",
line_terminator="\r\n")


My OS is Windows 11. Above, I use option line_terminator="\r\n" to get CRLF line termination. However, the resulted text file has LF line termination:



Could you elaborate on this problem and how to fix it?

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