Problem not display datetime field form in browser in django

What I can’t see input datetime form.form django in my browser?

the program that I run in the browser, The following code displayed instead of the input datetime

i have brought the codes of all the pages, please check

Thank you for your reply

from django import forms
from django.contrib.auth.models import User
from  datetime import datetime

class ExpenseForm (forms.Form):
    text = forms.CharField(
        widget=forms.TextInput(attrs={'placeholder':'توضیحات' ,'class':'form-control'}),

    date = forms.DateTimeField(,
        widget=forms.DateTimeInput(attrs={ 'placeholder':'تاریخ' ,
                                           'type': 'datetime-local'}),

    amount = forms.IntegerField(
        widget=forms.NumberInput(attrs={'placeholder':'مقدار' ,'class':'form-control'}),

def submit_expense(request):
    expense_form = ExpenseForm(request.POST or None)
    if expense_form.is_valid():
        text = expense_form.cleaned_data.get('text')
        date =  expense_form.cleaned_data.get('date')
        amount = expense_form.cleaned_data.get('amount')

        Expense.objects.create(text=text , date=date , amount=amount ,
        return redirect('/submit/expense')

    context ={
    return render(request,'hello.html',context)


{% extends 'shared/_MainLayout.html' %}

{% load static %}

{% block content %}
    <div class="login-form"><!--expense form-->
    <div class="col-sm-4 col-sm-offset-1">
        <div class="login-form"><!--expense form-->
            <h2>پولهای خرج شده :</h2>
            <form method="post" action="#">
                {% csrf_token %}
                {{ expense_form.text }}

                {{ expense_form.amount }}

                {{ }}

                <button type="submit" class="btn btn-default">ثبت</button>
        </div><!--/login form-->

{% endblock %}

please check the image to see my problem

browser page


you wrote {{ }} instead of {{ }}