Revised setstudentpassword management command

core/management/commands/setstudentpasswords.py

 import csv
+import re
 import secrets
 import sys
 
@@ -17,7 +18,9 @@ class Command(BaseCommand):
         )
 
     def _handle(self, *args, output=sys.stdout, instance="", **kwargs):
-        with open('/usr/share/dict/words') as words:
+        with open('/usr/share/dict/words') as f:
+            # strip punctuation
+            words = set(re.sub(r"[^a-z]", "\n", f.read().lower()).split('\n'))
             choose_from = list({word.strip().lower()
                                 for word in words if 5 < len(word) < 8})
 
@@ -26,7 +29,7 @@ class Command(BaseCommand):
             ['Name', 'Matrikel', 'Username', 'password', 'instance'])
 
         for student in get_user_model().get_students():
-            password = ''.join(secrets.choice(choose_from) for _ in range(3))
+            password = '-'.join(secrets.choice(choose_from) for _ in range(3))
 
             student.set_password(password)
             student.save()