1 files changed, 10 insertions, 7 deletions
diff --git a/accounts/backend/mail/sendmail.py b/accounts/backend/mail/sendmail.py
index 5ac5d93..1fecedc 100644
--- a/accounts/backend/mail/sendmail.py
+++ b/accounts/backend/mail/sendmail.py
@@ -4,27 +4,30 @@
 import subprocess
 from email.mime.text import MIMEText
 from email.utils import parseaddr
+from jinja2.environment import TemplateModule
 
 from . import Backend
 
 
-class SendmailBackend(Backend):
+def safe(s: str):
+    return s.split('\n', 1)[0]
 
-    def _send(self, recipient, content):
-        safe = lambda s: s.split('\n', 1)[0]
 
-        msg = MIMEText(content.body(), _charset='utf-8')
-        msg['Subject'] = safe(content.subject())
+class SendmailBackend(Backend):
+    def _send(self, recipient: str, content: TemplateModule):
+        msg = MIMEText(content.body(), _charset='utf-8')  # type: ignore
+        msg['Subject'] = safe(content.subject())  # type: ignore
         msg['To'] = safe(recipient)
-        msg['From'] = safe(content.sender())
+        msg['From'] = safe(content.sender())  # type: ignore
 
         envelope = []
-        _, address = parseaddr(safe(content.sender()))
+        _, address = parseaddr(safe(content.sender()))  # type: ignore
         if address != '':
             envelope = ['-f', address]
 
         p = subprocess.Popen([self.app.config['SENDMAIL_COMMAND']] +
                              envelope + ['-t'], stdin=subprocess.PIPE)
+        assert p.stdin
         p.stdin.write(msg.as_string().encode("utf-8"))
         p.stdin.close()