fixing bug: not checking soup posts if already posted; configpath errormessage was also misleading

tootbot.py

@@ -24,8 +24,8 @@ try:
         config = json.load(open(configpath))
 
 except:
-    print("didn't find config file: ", configpath)
-    print("ERROR: Config file not found!")
+    print("Problem reading config file: ", configpath)
+    print("ERROR: Config file not found or invalid!")
     sys.exit(1)
 
 
@@ -192,13 +192,13 @@ for p in reversed(s.entries):
     last = db.fetchone()
 
     print('Processing: %s' % p.id)
+
+    shouldpost = True
+
     if last is not None:
         shouldpost = False
         print("skip: already posted")
     # process only unprocessed tweets less than n days old
-
-    shouldpost = True
-
     posttime = datetime(p.published_parsed.tm_year, p.published_parsed.tm_mon, p.published_parsed.tm_mday, p.published_parsed.tm_hour, p.published_parsed.tm_min, p.published_parsed.tm_sec)
     age = datetime.now() - posttime
     if age > timedelta(days=days):