Working MX Lookup Script using free online api 150 calls per day max

ip-api.py

@@ -0,0 +1,42 @@
+import json
+import requests
+import os
+
+def search():
+    main_api = 'http://ip-api.com/json/'
+
+    ip = findMX()
+    for host in ip:
+        json_data = requests.get(main_api + host).json()
+
+        print('\nCity\State: {}, {}\n Country:   {}\n ISP:       {}\n IP:        {}\n MX:        {}'.format(
+            json_data['city'],
+            json_data['regionName'],
+            json_data['country'],
+            json_data['isp'],
+            json_data['query'],
+            host))
+
+def findMX():
+    host = input("Who do you want to look up?: ")
+    p = os.popen('host -t MX ' + host)
+
+    #initialize dicts
+    std_out = []
+    split = []
+    MXServer = []
+
+    #append terminal output to variable std_out
+    for line in p:
+        std_out.append(line)
+    p.close
+
+    #create iterator
+    i = 0
+    #split line into dict and return MX servers
+    for x in std_out:
+        split = std_out[i].split()
+        MXServer.append(split[6])
+        i = i + 1
+    return MXServer
+search()