Applying bootstrap styles to django forms

If you prefer not to use 3rd party tools then essentially you need to add attributes to your classes, I prefer to do this by having a base class that my model forms inherit from

class BootstrapModelForm(ModelForm):
    def __init__(self, *args, **kwargs):
        super(BootstrapModelForm, self).__init__(*args, **kwargs)
        for field in iter(self.fields):
            self.fields[field].widget.attrs.update({
                'class': 'form-control'
            })

Can easily be adjusted... but as you see all my field widgets get the form-control css class applied

You can extend this for specific fields if you wish, here's an example of an inherited form having an attribute applied

class MyForm(BootstrapModelForm):
    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)
        self.fields['name'].widget.attrs.update({'placeholder': 'Enter a name'})