from django import forms


class SubscribeForm(forms.Form):
    email = forms.EmailField()
    tags = forms.CharField()

    def clean(self):
        tags = self.cleaned_data['tags'].split(',')
        self.cleaned_data['tags'] = [t.strip().lower() for t in tags]
        return self.cleaned_data


class UnsubscribeForm(forms.Form):
    email = forms.EmailField()

from django import forms


class SubscribeForm(forms.Form):
    email = forms.EmailField()
    tags = forms.CharField()

    def clean_tags(self):
        tags = self.cleaned_data['tags'].split(',')
        return [t.strip().lower() for t in tags]


class UnsubscribeForm(forms.Form):
    email = forms.EmailField()

Use `clean_tags` instead of `clean`
Use `clean_tags` instead of `clean`

  from django import forms
  
  
  class SubscribeForm(forms.Form):
      email = forms.EmailField()
      tags = forms.CharField()
  
-     def clean(self):
+     def clean_tags(self):
          tags = self.cleaned_data['tags'].split(',')
-         self.cleaned_data['tags'] = [t.strip().lower() for t in tags]
+         return [t.strip().lower() for t in tags]
-         return self.cleaned_data
  
  
  class UnsubscribeForm(forms.Form):
      email = forms.EmailField()
  
Use `clean_tags` instead of `clean`
## Code Before:
from django import forms


class SubscribeForm(forms.Form):
    email = forms.EmailField()
    tags = forms.CharField()

    def clean(self):
        tags = self.cleaned_data['tags'].split(',')
        self.cleaned_data['tags'] = [t.strip().lower() for t in tags]
        return self.cleaned_data


class UnsubscribeForm(forms.Form):
    email = forms.EmailField()

## Instruction:
Use `clean_tags` instead of `clean`
## Code After:
from django import forms


class SubscribeForm(forms.Form):
    email = forms.EmailField()
    tags = forms.CharField()

    def clean_tags(self):
        tags = self.cleaned_data['tags'].split(',')
        return [t.strip().lower() for t in tags]


class UnsubscribeForm(forms.Form):
    email = forms.EmailField()
