Update app.py

app.py

@@ -176,7 +176,7 @@ def build_space(repo_name,file_name,file_content,access_token=""):
         
         local_file_path=str(uuid.uuid4())
         with open(local_file_path, 'w') as f:
-            f.write(str(file_content))
+            f.write(str(file_content).format())
         f.close()
         # Upload a local file to the Space
         commit_message = "Adding file test: "+ str(file_name)