Django - add widget option in form.py Meta class?

models.py

from django.db import models

class user(models.Model):
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    email = models.EmailField(max_length=100, unique=True)

forms.py

from django import forms
from second_app.models import user

class NewUserForm(forms.ModelForm):

    class Meta:
        model = user
        fields = '__all__'

In a normal forms.py that doesn't inherit from the models, you can use field = forms.CharField(widget=forms.HiddenInput) to specify how the input field will be displayed to the users. How can this be done, when my forms.py is inheriting the class defined in models.py?

You can use for this meta's widgets option:

from django import forms
from second_app.models import user

class NewUserForm(forms.ModelForm):

    class Meta:
        model = user
        fields = '__all__'
        widgets = {
            'field_name': forms.HiddenInput(),
        }