name.py

#!/usr/bin/env python3

import sys
import unicodedata
from argparse import ArgumentParser

print('Unicode data version: {}'.format(unicodedata.unidata_version))


def name(chars):
    names = (
        (char, 'U+%04X' % ord(char), unicodedata.name(char, None))
        for char in chars
    )
    return names


def lookup(name):
    matched = (
        (c, 'U+%04X' % ord(c), unicodedata.name(c, None))
        for c in
        map(chr, range(sys.maxunicode))
        if
        name.upper() in unicodedata.name(c, '')
    )
    return matched


def main():
    argparser = ArgumentParser()
    arggroup = argparser.add_mutually_exclusive_group()
    arggroup.add_argument('-n', '--name')
    arggroup.add_argument('-l', '--lookup')
    args, remainder = argparser.parse_known_args()

    # Concatenate leftovers
    if remainder and not args.lookup:
        _remainder = ''.join(remainder)
        try:
            args.name += _remainder
        except TypeError:
            args.name = _remainder

    if args.name:
        names = name(args.name)
        for n in names:
            print(*n)
    elif args.lookup:
        matched = lookup(args.lookup)
        for m in matched:
            print(*m)
    else:
        argparser.print_usage()


if __name__ == '__main__':
    main()