initial request can also fail, retry

pandora_client/__init__.py

@@ -1118,8 +1118,17 @@ class API(ox.API):
         if resume:
             data = resume
         else:
+            data = None
+            while not data:
+                try:
                     data = self._json_request(url, data)
-
+                except KeyboardInterrupt:
+                    print("\ninterrupted by user.")
+                    sys.exit(1)
+                except:
+                    print("failed to start upload, will try again in 5 seconds\r", end='')
+                    sys.stdout.flush()
+                    time.sleep(5)
         print(filename)
         hide_cursor()