Configure linters.

Introduce flake8 and mypy for better error checking.
Fix all errors and warnings emitted by those.
Also fix type error with `url_for`.

1 files changed, 1 insertions, 1 deletions

diff --git a/mu4web/password.py b/mu4web/password.py
index af33cb6..26bc712 100755
--- a/mu4web/password.py
+++ b/mu4web/password.py
@@ -89,7 +89,7 @@ class Passwords:
         return data['hash'] == digest
 
 
-def main():
+def main() -> None:
     import argparse
     parser = argparse.ArgumentParser()