diff --git a/door.py b/door_pi_control/__init__.py
similarity index 91%
rename from door.py
rename to door_pi_control/__init__.py
index b33478b..c720e9c 100644
--- a/door.py
+++ b/door_pi_control/__init__.py
@@ -12,19 +12,6 @@ OPEN_THRESHOLD = 190
 CLOSED_THRESHOLD = 160
 CLOSED_WANT = 40
 
-parser = argparse.ArgumentParser()
-parser.add_argument("--serial_port", default="/dev/serial/by-id/usb-Imaginaerraum.de_DoorControl_43363220195053573A002C0-if01")
-parser.add_argument("--nfc_fifo", default="/tmp/nfc_fifo")
-parser.add_argument("--control_socket", default="/tmp/nfc.sock")
-parser.add_argument("--valid_tokens", default="/etc/door_tokens")
-parser.add_argument("--log_file", default="/tmp/nfc.log")
-parser.add_argument("--state_timeout", type=float, default=10)
-parser.add_argument("--state_timeout_speed", type=float, default=3)
-parser.add_argument("--repeat_time", type=float, default=5)
-parser.add_argument("--mqtt_host", default="10.10.21.2")
-
-config = parser.parse_args()
-
 def timestamp():
     return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
 
@@ -433,26 +420,42 @@ class DoorControl:
                 DoorControl.action_names[self.action()],
                 (datetime.datetime.now() - self.start_time).total_seconds()))
 
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--serial_port", default="/dev/serial/by-id/usb-Imaginaerraum.de_DoorControl_43363220195053573A002C0-if01")
+    parser.add_argument("--nfc_fifo", default="/tmp/nfc_fifo")
+    parser.add_argument("--control_socket", default="/tmp/nfc.sock")
+    parser.add_argument("--valid_tokens", default="/etc/door_tokens")
+    parser.add_argument("--log_file", default="/tmp/nfc.log")
+    parser.add_argument("--state_timeout", type=float, default=10)
+    parser.add_argument("--state_timeout_speed", type=float, default=3)
+    parser.add_argument("--repeat_time", type=float, default=5)
+    parser.add_argument("--mqtt_host", default="10.10.21.2")
+    
+    config = parser.parse_args()
 
-dc = DoorControl(config)
+    dc = DoorControl(config)
 
-buffers = {}
-while True:
-    readable = select.select([ dc.serial_port.fileno(), dc.nfc_fifo, dc.control_socket ] + dc.comm_channels, [], [], 1 / UPDATE_RATE)[0]
+    buffers = {}
+    while True:
+        readable = select.select([ dc.serial_port.fileno(), dc.nfc_fifo, dc.control_socket ] + dc.comm_channels, [], [], 1 / UPDATE_RATE)[0]
+    
+        for c in readable:
+            if c == dc.serial_port.fileno():
+                dc.handle_door_line()
+            elif c == dc.nfc_fifo:
+                dc.handle_nfc_token()
+            elif c == dc.control_socket:
+                dc.logger.info("Got connection")
+                sock = dc.control_socket.accept()[0]
+                buffers[sock] = dc.LineBuffer(sock, dc.handle_cmd)
+                dc.comm_channels += [sock]
+            else:
+                if not buffers[c].update():
+                    dc.logger.info("Lost connection")
+                    del buffers[c]
+                    dc.comm_channels.remove(c)
+        dc.handle_door_state()
 
-    for c in readable:
-        if c == dc.serial_port.fileno():
-            dc.handle_door_line()
-        elif c == dc.nfc_fifo:
-            dc.handle_nfc_token()
-        elif c == dc.control_socket:
-            dc.logger.info("Got connection")
-            sock = dc.control_socket.accept()[0]
-            buffers[sock] = dc.LineBuffer(sock, dc.handle_cmd)
-            dc.comm_channels += [sock]
-        else:
-            if not buffers[c].update():
-                dc.logger.info("Lost connection")
-                del buffers[c]
-                dc.comm_channels.remove(c)
-    dc.handle_door_state()
+if __name__ == '__main__':
+    main()