Given a cantata number, spit out some useful links, and copy them to a paste-able format suitable for, e.g. quip or a markdown document

linker.py

#!/usr/bin/env python3
import sys

def main(raw_input):
    try:
        # Assume BWV input isn't 0-padded, i.e. is "60" and not "060".
        bwv = int(raw_input)
        padded = '%03d' % int(bwv)
        bwv = str(bwv)
    except ValueError as e:
        raise Exception("Couldn't parse input as an integer: %s" % e)

    links = {
        # label: (url template, needs_0_padded_bwv?)
        'Bach Cantatas Website': ('http://www.bach-cantatas.com/BWV{slug}.htm', False),
        'All of Bach permalink': ('https://www.bachvereniging.nl/en/bwv/bwv-{slug}', False),
        'Emmanuel Music translation': ('https://www.emmanuelmusic.org/bach-translations/bwv-{slug}', False),
        'Emmanuel Music notes': ('https://www.emmanuelmusic.org/bach-notes/bwv-{slug}', False),
        'Wikipedia':  ('https://en.wikipedia.org/w/index.php?title=BWV_{slug}', False),
    }

    for (label, (link, pad)) in links.items():
        slug = padded if pad else bwv
        url = link.format(slug=slug)
        print(f" * [{label}]({url})")


if __name__ == '__main__':
    try:
        main(sys.argv[1])
    except IndexError:
        print("Please provide a cantata BWV number")
        print("suggested usage: ")
        print("./linker.py 31 | pbcopy")