TEMPLATE_DIRS = (os.path.join(PROJECT_DIR, 'templates'),)

from allauth.account.views import SignupView, LoginView


class MySignupView(SignupView):
    template_name = 'my_signup.html'


class MyLoginView(LoginView):
    template_name = 'my_login.html'

<form id="signup_form" method="post" action="{% url 'account_signup' %}">

<form id="signup_form" method="post" action="">'

{% block content %}
    // your customized html for signup form
{% endblock %}