Third commit

app.py

@@ -25,10 +25,14 @@ LOGS_DIR = "training_logs"
 def save_uploaded_file(file):
     """Save uploaded file and return its path"""
     os.makedirs('uploads', exist_ok=True)
-    file_path = os.path.join('uploads', file.name)
-    with open(file_path, 'wb') as f:
-        f.write(file.read())
-    return file_path
+    import tempfile
+    
+    # Create a temporary file with .csv extension
+    temp = tempfile.NamedTemporaryFile(delete=False, suffix='.csv', dir='uploads')
+    temp.write(file)
+    temp.close()
+    
+    return temp.name
 
 def prepare_training_data(df):
     """Convert DataFrame into Q&A format"""