Implement new Profanity Checker on Form Validation

Why am I still up doing this at 3am

forms.py

@@ -1,9 +1,11 @@
 from wtforms import Form, BooleanField, StringField, PasswordField, validators
 
+from validators import NoProfanity
+
 
 class RegistrationForm(Form):
-    username = StringField('Username', [validators.Length(min=4, max=25)])
+    username = StringField('Username', [validators.Length(min=4, max=25), NoProfanity()])
-    name = StringField('Name', [validators.Length(min=2, max=35)])
+    name = StringField('Name', [validators.Length(min=2, max=35), NoProfanity()])
     password = PasswordField('New Password', [
         validators.DataRequired(),
         validators.EqualTo('confirm', message='Passwords must match')
@@ -20,12 +22,12 @@ class LoginForm(Form):
 
 class EditProfileForm(Form):
     name = RegistrationForm.name
-    about_me = StringField('About Me', [validators.Optional()])
+    about_me = StringField('About Me', [validators.Optional(), NoProfanity()])
 
 
 class NewPostForm(Form):
-    text = StringField('Text', [validators.Length(min=15, max=1000)])
+    text = StringField('Text', [validators.Length(min=15, max=1000), NoProfanity()])
 
 
 class NewCommentForm(Form):
-    text = StringField('Text', [validators.Length(min=5, max=50)])
+    text = StringField('Text', [validators.Length(min=5, max=50), NoProfanity()])

validators.py

@@ -0,0 +1,16 @@
+from typing import Optional
+from profanity_filter import ProfanityFilter
+from wtforms.validators import ValidationError
+
+pf = ProfanityFilter()
+
+
+class NoProfanity(object):
+    def __init__(self, message: Optional[str] = None):
+        if not message:
+            message = 'Profanity is not acceptable on Runnerspace'
+        self.message = message
+
+    def __call__(self, form, field):
+        if pf.is_profane(field.data):
+            raise ValidationError(self.message)