Use these instead of django.forms.Form or django.forms.ModelForm

base_forms.py

class _BaseForm(object):
    def clean(self):
        cleaned_data = super(_BaseForm, self).clean()
        for field in cleaned_data:
            if isinstance(cleaned_data[field], basestring):
                cleaned_data[field] = \
                  cleaned_data[field].replace('\r\n','\n')\
                    .replace(u'\u2018',"'").replace(u'\u2019',"'").strip()
        return cleaned_data
                
class BaseForm(_BaseForm, forms.Form):
    pass            

class BaseModelForm(_BaseForm, forms.ModelForm):
    pass