diff --git a/MQTT.py b/MQTT.py
index b645e89..ef156a1 100644
--- a/MQTT.py
+++ b/MQTT.py
@@ -4,7 +4,7 @@ import time
 
 import paho.mqtt.client as mqtt
 
-from tool import push_stream, close_stream, update, exec_sh, get_record, get_list_record, get_status
+from src.tool import push_stream, close_stream, update, exec_sh, get_record, get_list_record, get_status
 
 
 def on_connect(client, userdata, flags, rc):
@@ -69,8 +69,6 @@ def exec_shutdown():
     pass
 
 
-import os
-
 if __name__ == '__main__':
     p = subprocess.Popen(['cat /home/pi/device_name'], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     out, err = p.communicate()
diff --git a/__pycache__/tool.cpython-310.pyc b/__pycache__/tool.cpython-310.pyc
deleted file mode 100644
index 721a189..0000000
Binary files a/__pycache__/tool.cpython-310.pyc and /dev/null differ
diff --git a/api.py b/src/api.py
similarity index 100%
rename from api.py
rename to src/api.py
diff --git a/create_db.py b/src/create_db.py
similarity index 100%
rename from create_db.py
rename to src/create_db.py
diff --git a/data_upload.py b/src/data_upload.py
similarity index 100%
rename from data_upload.py
rename to src/data_upload.py
diff --git a/sensor_to_local.py b/src/sensor_to_local.py
similarity index 100%
rename from sensor_to_local.py
rename to src/sensor_to_local.py
diff --git a/sensor_to_server.py b/src/sensor_to_server.py
similarity index 100%
rename from sensor_to_server.py
rename to src/sensor_to_server.py
diff --git a/tool.py b/src/tool.py
similarity index 100%
rename from tool.py
rename to src/tool.py