[F] courseinfo: hours might be empty

courseinfo.py

@@ -6,10 +6,14 @@ import requests
 def get_course_info(id: str):
     link = f'https://artsci.calendar.utoronto.ca/course/{id}'
     html = requests.get(link).text
+
     name: str = re.findall(r'(?<=<h1 class="title page-title">).*(?=<)', html)[0]
     name = ': '.join(name.split(': ')[1:])
-    hours: str = re.findall(r'(?<=<div class="field__item"><p>).*(?=<)', html)[0]
+
+    hours_raw = re.findall(r'(?<=<div class="field__item"><p>).*(?=<)', html)
+    hours: str = '0N' if len(hours_raw) == 0 else hours_raw[0]
     hours = '/'.join([str(int(it[:-1]) / 12) + it[-1] for it in hours.split('/')])
+
     return {'id': id, 'name': name, 'link': link, 'hours': hours,
             'full': f'`{id}` - [{hours}] [{name}]({link})'}