Update pre.py

pre.py

@@ -48,6 +48,13 @@ def preprocess_uploaded_file(uploaded_file):
     data['End datetime'] = pd.to_datetime(data['End datetime'], dayfirst=True, errors='coerce')
     data['Time spent'] = (data['End datetime'] - data['Start datetime']).dt.total_seconds()
     data['Time spent(m:s)'] = pd.to_datetime(data['Time spent'], unit='s').dt.strftime('%M:%S')
+    # Extract environment name from filename
+    filename = uploaded_file.name
+    environment = filename.split('_Puppeteer')[0]
+            
+    # Add environment column to the dataframe
+    data['Environment'] = environment
+    
     return data
 
 def add_app_description():