python - Overriding default error messages in email input widget in django -

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i trying override default invalid email error message in django. django doc says, following code should work, it's not. how can adjust it?

class bootstrapauthenticationform(authenticationform): forms.form.error_css_class = 'error' email = forms.emailfield(max_length=254,                             error_messages={'required': 'please enter valid email address.',                                             'invalid': 'please enter valid email address.'},                            widget=forms.emailinput({                                'required': true,                                'class': 'form-control',                                 'placeholder': 'e-mail address',                                }))

and, error_css_class not working properly: there no change @ all. what's wrong setting?

thanks in advance.

you can use emailvalidator:

email = forms.emailfield(max_length=254, validators=[emailvalidator(message="your message")]

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