Monkey-patching HTML5 required attribute for Django forms.

forms.py

from django import forms

class HTML5Form(forms.Form):
    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)

        for _, field in self.fields.items():
            if field.widget.is_required:
                field.widget.attrs['required'] = 'required'