epc.py

#!/usr/local/bin/python
import requests
import sys
from html.parser import HTMLParser

class MyHTMLParser(HTMLParser):
    def handle_starttag(self, tag, attrs):
        if tag == "meta":
            if attrs[0][1] == "powerstate":
                port = attrs[1][1].split(",")
                if self.port == int(port[0]):
                    if port[1] == "1":
                        print("ON")
                    else:
                        print("OFF")

parser = MyHTMLParser()

if len(sys.argv) < 3:
    raise Exception('your missing something')

parser.port = int(sys.argv[2])

if len(sys.argv) > 3:
    url = "http://%s/SWOV.CGI?s%i=%i" % (sys.argv[1],int(sys.argv[2]),int(sys.argv[3]))
    r = requests.get(url)
else:
    url = "http://%s" % sys.argv[1]
    r = requests.get(url)
parser.feed(r.text)