cmd/unique.py

24 lines
581 B
Python

import argparse
import sys
from voussoirkit import pipeable
def unique_argparse(args):
lines = pipeable.input(args.source, read_files=True, skip_blank=True)
seen = set()
for line in lines:
if line not in seen:
pipeable.output(line)
seen.add(line)
def main(argv):
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('source')
parser.set_defaults(func=unique_argparse)
args = parser.parse_args(argv)
return args.func(args)
if __name__ == '__main__':
raise SystemExit(main(sys.argv[1:]))