fix(grade history): handle when not available

Author: Udhay-Adithya

src/parsers/grades_details_parser.py

@@ -2,16 +2,24 @@
 
 
 def parse_grade_history(html : str) -> dict[str, str]:
-    soup = BeautifulSoup(html, 'html.parser')
-    table = soup.find('table', {'class': 'table table-hover table-bordered'})
-    # Extract the row containing the desired data
-    data_row = table.find('tbody').find('tr')
-    # Extract the specific data points
-    columns = data_row.find_all('td')
-    grades : dict[str, str]= {
-        'credits_registered': columns[0].get_text(strip=True),
-        'credits_earned': columns[1].get_text(strip=True),
-        'cgpa': columns[2].get_text(strip=True)
-    }
+    try: 
+        soup = BeautifulSoup(html, 'html.parser')
+        table = soup.find('table', {'class': 'table table-hover table-bordered'})
+        # Extract the row containing the desired data
+        data_row = table.find('tbody').find('tr')
+        # Extract the specific data points
+        columns = data_row.find_all('td')
+        grades : dict[str, str]= {
+            'credits_registered': columns[0].get_text(strip=True),
+            'credits_earned': columns[1].get_text(strip=True),
+            'cgpa': columns[2].get_text(strip=True)
+        }
 
-    return grades
+        return grades
+    except Exception as e:
+        print(f"Error parsing grade history: {str(e)}")
+        return {
+            'credits_registered': "N/A",
+            'credits_earned': "N/A",
+            'cgpa': "N/A"
+        }