fix handling of empty speeches

crawler.py

@@ -133,9 +133,9 @@ def main():
     if args.debug:
         links = links[:5]
         names = names[:5]
-        sleep_for = 1
+        sleep_for = 0
     else:
-        sleep_for = 5
+        sleep_for = 10
 
     bios = [get_bio(link, name, sleep_for) for link, name in zip(links, names)]
 
@@ -252,7 +252,7 @@ def get_functions(elem):
 
 def parse_speech(page):
     if not page:
-        return (None, None)
+        return None
     soup = BeautifulSoup(page.content)
     infos = [s.text.strip() for s in soup.find_all(class_="m-biography__speechTitle")]
     titles = [