Update Background_substraction.py

Background_substraction.py

@@ -112,9 +112,9 @@ print('metadata_images_dir :', metadata_images_dir)
 
 # In[9]:
 if not os.path.exists(base_dir):
-    print("WARNING: Could not find desired file: "+filename)
+    print("WARNING: Could not find desired file: "+ base_dir)
 else :
-    print("The",filename,"file was imported for further analysis!")
+    print("The", base_dir ,"file was imported for further analysis!")
     
 
 # Import all metadata we need from the QC/EDA chapter