#!/usr/bin/env python3
# sample-crlf.py: a Python file saved with Windows (CRLF) line endings.
# Free sample from 99helpers.com/file-types/py
#
# python3 sample-crlf.py   works: Python accepts CRLF, LF and CR line endings.
# ./sample-crlf.py         fails on macOS and Linux, because the shebang line
#                          ends in an invisible carriage return and the system
#                          looks for a program called "python3\r":
#                          /usr/bin/env: 'python3\r': No such file or directory
# Fix: convert to LF with dos2unix, or your editor's line-ending setting.
from pathlib import Path

data = Path(__file__).read_bytes()
crlf = data.count(b"\r\n")
lf_only = data.count(b"\n") - crlf
print(f"{crlf} lines end in CRLF and {lf_only} in LF alone.")
print("Python ran this file without complaint.")