Python script for cssminifier.com's API

cssminifier.py

#!/usr/bin/env python

import requests
import argparse
import os

def css_minifier(input):
    payload = {"input": input}
    headers = {'content-type': 'application/x-www-form-urlencoded',
               'content-length': input.__len__()}
    cssmin = requests.post("http://cssminifier.com/raw", data=payload,
                           headers=headers)
    cssmin.raise_for_status()
    print(cssmin.content)

if __name__ == "__main__":
    parser = argparse.ArgumentParser(prog="CSS Minifier (cssminifier.com)")
    parser.add_argument("request", nargs=1, choices=("file", "url"), default="file",
                        help="Get input from a file or an URL.")
    parser.add_argument("location", help="Location of the input (file or URL).")
    args = parser.parse_args()
    if args.request == ['file']:
        location = open(os.path.expanduser(args.location), 'r')
        input_content = location.read()
        css_minifier(input_content)
    elif args.request == ['url']:
        input_url = requests.get(args.location)
        input_content = input_url.content
        cssmin.raise_for_status()
        css_minifier(input_content)

Usage:

Minify local CSS stylesheet & save it to a file:

$ ./cssminifier.py file /path/to/stylesheet.css > stylesheet.min.css

Fetch a stylesheet online, minify it & save it to a file:

$ ./cssminifier.py url http://example.com/stylesheet.css > stylesheet.min.css