mistake with commenting out function, should definitely go through all functions relevance though

host_lookup.py

@@ -78,23 +78,23 @@ def determine(host):
     return host_type
 
 
-# def extract(user_input):
+def extract(user_input):
-#     hosts = []
+    hosts = []
-#     errors = []
+    errors = []
-#     for item in user_input:
+    for item in user_input:
-#         if validators.url(item):
+        if validators.url(item):
-#             hosts.append(item)
+            hosts.append(item)
-#         elif validators.domain(item):
+        elif validators.domain(item):
-#             hosts.append(item)
+            hosts.append(item)
-#         elif validators.ip_address.ipv4(item):
+        elif validators.ip_address.ipv4(item):
-#             hosts.append(item)
+            hosts.append(item)
-#         elif validators.ip_address.ipv6(item):
+        elif validators.ip_address.ipv6(item):
-#             hosts.append(item)
+            hosts.append(item)
-#         elif validators.email(item):
+        elif validators.email(item):
-#             hosts.append(item)
+            hosts.append(item)
-#         else:
+        else:
-#             errors.append(item)
+            errors.append(item)
-#     return hosts, errors
+    return hosts, errors
 
 
 def domain(host):