Now the system work with big files

client.py

@@ -13,6 +13,7 @@ from random import randint
 from shutil import rmtree
 from threading import Thread
 from time import sleep
+from uuid import uuid4
 
 from PIL import Image, ImageTk
 from requests import post
@@ -182,8 +183,12 @@ class MunyalClient(Icon):
                 directory = os.path.split(full_path)[0]
                 if not os.path.exists(directory):
                     os.makedirs(directory, exist_ok=True)
-                with open(full_path, "wb") as f:
+                directory, _ = os.path.split(full_path)
+                temp_name = str(uuid4()) + ".tmp"
+                temp_dir = path_join(directory, temp_name)
+                with open(temp_dir, "wb") as f:
                     f.write(base64.b85decode(data["file"].encode("ascii")))
+                os.rename(temp_dir, full_path)
             else:
                 os.remove(full_path)
         else:
@@ -192,7 +197,6 @@ class MunyalClient(Icon):
             else:
                 shutil.rmtree(full_path)
 
-
     def __download(self, message):
         try:
             data = json.loads(message)