Update app.py

app.py

@@ -338,8 +338,8 @@ def generate_sdo_urls(date1_str: str, date2_str: str) -> list[str]:
     try:
         # Convert input strings to date objects
         # datetime.strptime creates a datetime object, .date() gets just the date part
-        start_date = datetime.strptime(date1_str, "%Y%m%d").date()
-        end_date = datetime.strptime(date2_str, "%Y%m%d").date()
+        start_date = datetime.strptime(date1_str[:8], "%Y%m%d").date()
+        end_date = datetime.strptime(date2_str[:8], "%Y%m%d").date()
     except ValueError:
         print(f"Error: Invalid date format. Please use YYYYMMDD. Received: '{date1_str}', '{date2_str}'")
         return [] # Return empty list for invalid date format