emails were double sending previously, make small change to resolve this

hiss/shared/admin_functions.py

@@ -11,48 +11,36 @@ def __init__(self, subject, text_content, html_content, from_email, recipient_li
         self.from_email = from_email
         self.recipient_list = recipient_list
         self.connection = connection
+        self.result = 0  
 
     def run(self):
         email = EmailMultiAlternatives(self.subject, self.text_content, self.from_email, self.recipient_list)
         email.attach_alternative(self.html_content, "text/html")
-        email.send(fail_silently=False, connection=self.connection)
-        #store results of threading for testing mass emails
         try:
             self.result = email.send(fail_silently=False, connection=self.connection)
         except Exception as e:
-            print("Error: ", e)
+            print("Error sending email: ", e)
             self.result = 0
 
-def send_mass_html_mail(
-    datatuple, fail_silently=False, user=None, password=None, connection=None
-):
+def send_mass_html_mail(datatuple, fail_silently=False, user=None, password=None, connection=None):
     """
-    Given a datatuple of (subject, text_content, html_content, from_email,
-    recipient_list), sends each message to each recipient list. Returns the
-    number of emails sent.
-
-    If from_email is None, the DEFAULT_FROM_EMAIL setting is used.
-    If auth_user and auth_password are set, they're used to log in.
-    If auth_user is None, the EMAIL_HOST_USER setting is used.
-    If auth_password is None, the EMAIL_HOST_PASSWORD setting is used.
-
-    (from <a href="https://stackoverflow.com/a/10215091">this StackOverflow answer</a>
+    Sends each message in datatuple (subject, text_content, html_content, from_email, recipient_list).
+    Returns the number of emails sent.
     """
     connection = connection or get_connection(
         username=user, password=password, fail_silently=fail_silently
     )
 
     threads = []
-    
+
     for subject, text, html, from_email, recipient in datatuple:
         email_thread = MassEmailThread(subject, text, html, from_email, recipient, connection)
         email_thread.start()
         threads.append(email_thread)
 
     for thread in threads:
         thread.join()
-
-    total = sum(thread.result for thread in threads)
-
-    # see how many emails sent successfully
-    return total
+
+    total_sent = sum(thread.result for thread in threads if thread.result)
+
+    return total_sent