How Set focus to CharField of a django form element

$("#id_username") should be $("#id_userName")

In html, all you need is autofocus without arguments.

In the Django form, add autofocus as key with empty value:

search = forms.CharField(
                label='Search for:',
                max_length=50,
                required=False,
                widget=forms.TextInput(attrs={'autofocus': ''}))

    password = forms.CharField(
        widget=forms.PasswordInput(attrs={'autofocus': 'autofocus'}))

for text input:

    field = forms.CharField(
        widget=forms.TextInput(attrs={'autofocus': 'autofocus'}))

The proper Django way of answering this question is as follows (as it doesn't depend on js being enabled):

from django import forms

class LoginForm(forms.Form):
    user_name = forms.EmailField(max_length=25)     
    password = forms.CharField( widget=forms.PasswordInput, label="password" )

    def __init__(self):
        self.fields['user_name'].widget.attrs.update({'autofocus': 'autofocus'
            'required': 'required', 'placeholder': 'User Name'})
        self.fields['password'].widget.attrs.update({
            'required': 'required', 'placeholder': 'Password'})

Also, for the record, we avoid the use of camelcase for object attributes. Cheers!