From fe3e4d968a78d5c3e624c007ada93e66aa17bf9f Mon Sep 17 00:00:00 2001
From: Leon Kuchenbecker <kuchenb@informatik.uni-tuebingen.de>
Date: Sat, 23 May 2020 11:53:03 +0200
Subject: [PATCH] Ignore empty comments. Fixes #10.

---
 src/assignmenttool/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/assignmenttool/__init__.py b/src/assignmenttool/__init__.py
index b776be1..a458a4e 100755
--- a/src/assignmenttool/__init__.py
+++ b/src/assignmenttool/__init__.py
@@ -150,6 +150,8 @@ def process(config):
                 raise AToolError(f'Could not find maximum score for task {task}')
             record['score'] = row.Value
         elif row.Type.upper() == 'COMMENT':
+            if pd.isna(row.Value):
+                continue # Ignore empty comments
             # Check if this is a comment that applies to the entire sheet
             if pd.isna(row.Task) and pd.isna(row.Subtask):
                 sheet_comments[row.Username].append(row.Value)