Render error tag ${form} with Django 2.1.2 , but work fine with Django 2.0.8

[Ake Tang]

Hi Members,

Do u find an error such stack below? It work fine with Django 2.0.8 but until upgrade to 2.1.1

Exception Value: render() got an unexpected keyword argument 'renderer'

Environment:

Request Method: GET

Request URL: http://127.0.0.1:8000/fh_wizard/13021/15462/

Django Version: 2.1.2

Python Version: 3.7.0

Installed Applications:

[

 'django.contrib.admin',

 'django.contrib.auth',

 'django.contrib.contenttypes',

 'django.contrib.sessions',

 'django.contrib.messages',

 'django.contrib.staticfiles',

 'formtools']

Installed Middleware:

['django.middleware.security.SecurityMiddleware',

 'django.contrib.sessions.middleware.SessionMiddleware',

 'django.middleware.common.CommonMiddleware',

 'django.contrib.auth.middleware.AuthenticationMiddleware',

 'django.contrib.messages.middleware.MessageMiddleware',

 'django.middleware.clickjacking.XFrameOptionsMiddleware']

Template error:

In template testbase.html, error at line 22

   TypeError: render() got an unexpected keyword argument 'renderer'

   19 : <form action="." method="post">   20 : <table>   21 :     ${wizard['management_form']}   22 :      ${form}    23 : </table>   24 :    25 : <input type="submit">   26 : </form>   27 : </%def>

Traceback:

File "/i/pyenv/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner

  34.             response = get_response(request)

File "/i/pyenv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response

  156.                 response = self.process_exception_by_middleware(e, request)

File "/i/pyenv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response

  154.                 response = response.render()

File "/i/pyenv/lib/python3.7/site-packages/django/template/response.py" in render

  106.             self.content = self.rendered_content

File "/i/pyenv/lib/python3.7/site-packages/django/template/response.py" in rendered_content

  83.         content = template.render(context, self._request)

File "/home/src/djangomako/backends.py" in render

  199.             raise e

File "/home/djangomako/backends.py" in render

  169.             return self.template.render(**context)

File "/i/pyenv/lib/python3.7/site-packages/Mako-1.0.7-py3.7.egg/mako/template.py" in render

  462.         return runtime._render(self, self.callable_, args, data)

File "/i/pyenv/lib/python3.7/site-packages/Mako-1.0.7-py3.7.egg/mako/runtime.py" in _render

  838.                     **_kwargs_for_callable(callable_, data))

File "/i/pyenv/lib/python3.7/site-packages/Mako-1.0.7-py3.7.egg/mako/runtime.py" in _render_context

  873.         _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)

File "/i/pyenv/lib/python3.7/site-packages/Mako-1.0.7-py3.7.egg/mako/runtime.py" in _exec_template

  899.         callable_(context, *args, **kwargs)

File "/tmp/testbase.html.py" in render_body

  23.         __M_writer(str(self.content()))

File "/tmp/wizard.html.py" in render_content

  75.         __M_writer(str(form))

File "/i/pyenv/lib/python3.7/site-packages/django/utils/html.py" in <lambda>

  397.     klass.__str__ = lambda self: mark_safe(klass_str(self))

File "/i/pyenv/lib/python3.7/site-packages/django/forms/forms.py" in __str__

  142.         return self.as_table()

File "/i/pyenv/lib/python3.7/site-packages/django/forms/forms.py" in as_table

  284.             errors_on_separate_row=False,

File "/i/pyenv/lib/python3.7/site-packages/django/forms/forms.py" in _html_output

  243.                     'field_name': bf.html_name,

File "/i/pyenv/lib/python3.7/site-packages/django/utils/html.py" in <lambda>

  397.     klass.__str__ = lambda self: mark_safe(klass_str(self))

File "/i/pyenv/lib/python3.7/site-packages/django/forms/boundfield.py" in __str__

  33.         return self.as_widget()

File "/i/pyenv/lib/python3.7/site-packages/django/forms/boundfield.py" in as_widget

  93.             renderer=self.form.renderer,

Exception Type: TypeError at /fh_wizard/13021/15462/

Exception Value: render() got an unexpected keyword argument 'renderer'