Add final output, account for some errors

Signed-off-by: Abdulkadir Furkan Şanlı <me@abdulocra.cy>

lb_import.py

@@ -7,11 +7,23 @@ import sys
 
 
 def connect_client(auth_token):
+    try:
         client = pylistenbrainz.ListenBrainz()
         client.set_auth_token(auth_token)
+    except BaseException:
+        print("Unable to connect to ListenBrainz.")
     return client
 
 
+def open_export(export_file):
+    try:
+        with open(export_file, 'r') as read_file:
+            export_json = json.load(read_file)
+    except FileNotFoundError:
+        print("File does not exist.")
+    return export_json
+
+
 def parse_listen(raw):
     listen = pylistenbrainz.Listen(
         track_name=raw['track_metadata']['track_name'],
@@ -45,8 +57,7 @@ def parse_listen(raw):
 
 def main():
     client = connect_client(sys.argv[1])
-    with open(sys.argv[2], 'r') as read_file:
-        exported = json.load(read_file)
+    exported = open_export(sys.argv[2])
     print("Opened file with {} listens, starting import...".format(len(exported)))
     imported = 0
     for raw_listen in exported:
@@ -67,6 +78,7 @@ def main():
                 sleep(sleep_time)
             else:
                 break
+    print("\nSuccesfully imported {} listens.".format(imported))
 
 
 if __name__ == '__main__':