Read-Only Field in Django Form

In django 1.9 in a Field.disabled attribute available : https://docs.djangoproject.com/en/1.9/ref/forms/fields/#disabled

The disabled boolean argument, when set to True, disables a form field using the disabled HTML attribute so that it won’t be editable by users. Even if a user tampers with the field’s value submitted to the server, it will be ignored in favor of the value from the form’s initial data.

otherwise

use the widget 'readonly' attribute

class PatientForm(forms.ModelForm):

    def __init__(self, *args, **kwargs):
       super(PatientForm, self).__init__(*args, **kwargs)
       self.fields['field'].widget.attrs['readonly'] = True

    class Meta:
        model = Patient

You can use the optional attrs parameter when defining the Field. To wit:

somefield = forms.CharField(
    widget=forms.TextInput(attrs={'readonly':'readonly'})
)