How to clear password field after failed login?

I'm using django.contrib.auth.views.logi开发者_运维百科n to log in users. When login is failed, the user and password fields get posted back to the form.

What's the proper way to clean those?

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Pass render_value=False when you create your password field's PasswordInput widget.

class YourAuthenticationForm(AuthenticationForm):
    password = forms.CharField(widget=forms.PasswordInput(render_value=False))