fixes

.gitignore

@@ -5,5 +5,5 @@ __pycache__
 result*.json
 groups.json
 diffable_dates.txt
-parsed
+parsed/
 parser.json

main.py

@@ -354,7 +354,7 @@ def main():
             ),
             body=json.dumps({
                 "type": "session_end",
-                "err": err,
+                "err": str(err) if err else None,
                 "duration": t.step(),
                 "session": sess
                 }, ensure_ascii=False).encode('utf-8')

requirements.txt

@@ -2,3 +2,5 @@ openpyxl
 xlrd
 beautifulsoup4
 requests
+pika
+python-dotenv