add rank paramether to site_list.py

--rank or -r to update all page ranks

site_list.py

@@ -5,6 +5,7 @@ This module generates the listing of supported sites.
 import json
 import sys
 import requests
+from argparse import ArgumentParser, RawDescriptionHelpFormatter
 from bs4 import BeautifulSoup as bs
 from datetime import datetime
 from collections import OrderedDict
@@ -23,6 +24,14 @@ def get_rank(domain_to_query):
                             result = int(strong.text.strip().replace(',', ''))
     return result
 
+parser = ArgumentParser(formatter_class=RawDescriptionHelpFormatter
+                        )
+parser.add_argument("--rank","-r",
+                    action="store_true",  dest="rank", default=False,
+                    help="Update all website ranks (not recommended)."
+                    )
+args = parser.parse_args()
+
 with open("data.json", "r", encoding="utf-8") as data_file:
     data = json.load(data_file)
 
@@ -34,13 +43,12 @@ with open("sites.md", "w") as site_file:
 	for social_network in data:
 		url_main = data.get(social_network).get("urlMain")
 		site_file.write(f'{index}. [{social_network}]({url_main})\n')
+		if args.rank == True:
+			data.get(social_network)["rank"] = get_rank(url_main)
 			sys.stdout.write("\r{0}".format(f"Updated {index} out of {data_length} entries"))
 			sys.stdout.flush()
-		data.get(social_network)["rank"] = get_rank(url_main)
 		index = index + 1
 
-	site_file.write(f'\nAlexa.com rank data fetched at {datetime.utcnow()} UTC\n')
-
 sorted_json_data = json.dumps(data, indent=2, sort_keys=True)
 
 with open("data.json", "w") as data_file:

sites.md

@@ -132,5 +132,3 @@
 131. [devRant](https://devrant.com/)
 132. [iMGSRC.RU](https://imgsrc.ru/)
 133. [last.fm](https://last.fm/)
-
-Alexa.com rank data fetched at 2019-01-24 10:58:49.318475 UTC