diff --git a/app/auth/models.py b/app/auth/models.py
index e276fd9..c5beeb9 100644
--- a/app/auth/models.py
+++ b/app/auth/models.py
@@ -30,7 +30,7 @@ _nameToRole = {
 }
 
 
-def _checkRole(role):
+def _check_role(role):
     if isinstance(role, int):
         rv = role
     elif str(role) == role:
@@ -65,14 +65,14 @@ class User(UserMixin, db.Model):
             self.password = None
 
     def set_role(self, role):
-        self.role = _checkRole(role)
+        self.role = _check_role(role)
 
     def has_role(self, role):
-        role = _checkRole(role)
+        role = _check_role(role)
         return self.role == role
 
     def has_role_or_higher(self, role):
-        role = _checkRole(role)
+        role = _check_role(role)
         return self.role and (self.role >= role)
 
     def set_password(self, password):
diff --git a/app/auth/routes.py b/app/auth/routes.py
index 71f4e6f..8ea1276 100644
--- a/app/auth/routes.py
+++ b/app/auth/routes.py
@@ -7,6 +7,8 @@ from flask_login import login_user, logout_user
 from app.auth.models import User
 from app.auth import bp
 
+main_index = 'main.index'
+
 
 #
 # Decorator used to protect routes by role
@@ -30,10 +32,10 @@ def role_required(role):
             try:
                 is_authorised = current_user.has_role_or_higher(role)
             except ValueError:
-                raise Exception("Unknowk role provided %s" % role)
+                raise ValueError("Unknown role provided %s" % role)
             if not is_authorised:
                 flash("Vous n'avez pas les autorisations pour accéder à cette page", 'dark')
-                return redirect(url_for('main.index'))
+                return redirect(url_for(main_index))
             return f(*args, **kwargs)
 
         return decorated_function
@@ -50,12 +52,11 @@ def login():
 def login_post():
     user_login = request.form.get('login')
     user_password = request.form.get('password')
-    # user_remember = request.form.get('remember')
     user = User.query.filter_by(login=user_login).one_or_none()
     if user and user.check_password(user_password):
         login_user(user)
         flash("Connection Réussie !", 'success')
-        return redirect(url_for('main.index'))
+        return redirect(url_for(main_index))
     else:
         flash("Mauvais login ou mot de passe.", 'warning')
         return redirect(url_for('auth.login'))
@@ -65,4 +66,4 @@ def login_post():
 def logout():
     logout_user()
     flash("Vous êtes maintenant déconnecté", 'info')
-    return redirect(url_for('main.index'))
+    return redirect(url_for(main_index))
diff --git a/app/commands/commands.py b/app/commands/commands.py
index 86bf26e..2e5e1ce 100644
--- a/app/commands/commands.py
+++ b/app/commands/commands.py
@@ -433,7 +433,7 @@ def feed_periods(begin_year, end_year):
 @click.option('--agent', '-a', 'agent', default=None, help="the agent id you want to charge")
 def feed_random_charges(agent):
     """ Randomly fill in the agents charges. """
-    for i in range(0, 100):
+    for _ in range(0, 100):
         if agent is None:
             agent_id = random.choice([i for (i,) in db.session.query(Agent.id).all()])
         else:
diff --git a/app/errors/handlers.py b/app/errors/handlers.py
index 420cc81..78b34c5 100644
--- a/app/errors/handlers.py
+++ b/app/errors/handlers.py
@@ -2,30 +2,32 @@ from flask import render_template
 from app import db
 from . import bp
 
-
 # Inspired by:
 #   https://flask.palletsprojects.com/en/master/patterns/errorpages/
 
+error_page = 'error.html'
+
+
 @bp.app_errorhandler(403)
 def forbidden_error(error):
     error_title = "Page Interdite"
-    return render_template('error.html', error_title=error_title, error_msg=error), 403
+    return render_template(error_page, error_title=error_title, error_msg=error), 403
 
 
 @bp.app_errorhandler(404)
 def not_found_error(error):
     error_title = "Page Introuvable."
-    return render_template('error.html', error_title=error_title, error_msg=error), 404
+    return render_template(error_page, error_title=error_title, error_msg=error), 404
 
 
 @bp.app_errorhandler(405)
 def method_error(error):
     error_title = "Erreur de Méthode."
-    return render_template('error.html', error_title=error_title, error_msg=error), 405
+    return render_template(error_page, error_title=error_title, error_msg=error), 405
 
 
 @bp.app_errorhandler(500)
 def internal_error(error):
     db.session.rollback()
     error_title = "Erreur Interne. Administrateur Prévenu."
-    return render_template('error.html', error_title=error_title, error_msg=error), 500
+    return render_template(error_page, error_title=error_title, error_msg=error), 500
--
libgit2 0.21.2