Django configure form field with bootstrap form-elements

configure_form_fields.py

def configure_fields(fields):
    """
    Configures form field with bootstrap style
    Input forms fields
    Output formatted form fields 
    """
    for field in fields:
        if isinstance(fields[field].widget, Textarea):
            fields[field].widget.attrs['rows'] = '3'
        fields[field].widget.attrs['class'] = 'form-control'
    return fields