fix slack client usage

scraper.py

@@ -5,7 +5,7 @@
 from sqlalchemy.orm import sessionmaker
 from dateutil.parser import parse
 from util import post_listing_to_slack, find_points_of_interest
-from slackclient import SlackClient
+from slack import WebClient
 import time
 import settings
 
@@ -115,7 +115,7 @@ def do_scrape():
     """
 
     # Create a slack client.
-    sc = SlackClient(settings.SLACK_TOKEN)
+    slack_client = WebClient(settings.SLACK_TOKEN)
 
     # Get all the results from craigslist.
     all_results = []
@@ -126,4 +126,4 @@ def do_scrape():
 
     # Post each result to slack.
     for result in all_results:
-        post_listing_to_slack(sc, result)
+        post_listing_to_slack(slack_client, result)

settings.py

@@ -124,4 +124,4 @@
 try:
     from config.private import *
 except Exception:
-    pass
+    pass

util.py

@@ -29,16 +29,18 @@ def in_box(coords, box):
         return True
     return False
 
-def post_listing_to_slack(sc, listing):
+def post_listing_to_slack(slack_client, listing):
     """
     Posts the listing to slack.
     :param sc: A slack client.
     :param listing: A record of the listing.
     """
     desc = "{0} | {1} | {2} | {3} | <{4}>".format(listing["area"], listing["price"], listing["bart_dist"], listing["name"], listing["url"])
-    sc.api_call(
-        "chat.postMessage", channel=settings.SLACK_CHANNEL, text=desc,
-        username='pybot', icon_emoji=':robot_face:'
+    slack_client.chat_postMessage(
+        channel=settings.SLACK_CHANNEL,
+        text=desc,
+        username='pybot',
+        icon_emoji=':robot_face:'
     )
 
 def find_points_of_interest(geotag, location):