Django-debug-toolbar: Estouro de pilha ao usar Django Debug Toolbar 1.8 (funciona bem no 1.7)

Criado em 1 jun. 2017 · 11Comentários · Fonte: jazzband/django-debug-toolbar

Boa tarde, Estou recebendo um erro de estouro de pilha quando tento usar o DJDT 1.8 em rotas atendidas pelo Wagtail CMS. As mesmas rotas / páginas funcionam com DJDT 1.7. Estou executando o Django 1.11.2 e o Wagtail 1.10.1. Aqui está o rastreamento:

Fatal Python error: Cannot recover from stack overflow.

Current thread 0x00007f5d3f7f8700 (most recent call first):
  File "/venv-path/django/utils/functional.py", line 215 in wrapper
  File "/venv-path/django/template/base.py", line 835 in __init__
  File "/venv-path/django/template/base.py", line 685 in __init__
  File "/venv-path/django/template/base.py", line 600 in compile_filter
  File "/venv-path/django/template/defaulttags.py", line 826 in do_for
  File "/venv-path/django/template/base.py", line 513 in parse
  File "/venv-path/django/template/base.py", line 230 in compile_nodelist
  File "/venv-path/django/template/base.py", line 191 in __init__
  File "/venv-path/django/template/loaders/base.py", line 44 in get_template
  File "/venv-path/django/template/engine.py", line 136 in find_template
  File "/venv-path/django/template/engine.py", line 162 in get_template
  File "/venv-path/django/template/backends/django.py", line 39 in get_template
  File "/venv-path/django/template/loader.py", line 21 in get_template
  File "/venv-path/django/template/loader.py", line 67 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  File "/venv-path/django/template/backends/django.py", line 66 in render
  File "/venv-path/django/template/loader.py", line 68 in render_to_string
  File "/venv-path/wagtail/wagtailcore/blocks/base.py", line 259 in render
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 377 in __html__
  File "/venv-path/wagtail/wagtailcore/blocks/stream_block.py", line 380 in __str__
  File "/venv-path/django/utils/encoding.py", line 76 in force_text
  File "/venv-path/debug_toolbar/panels/templates/panel.py", line 128 in _store_template_info
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in <listcomp>
  File "/venv-path/django/dispatch/dispatcher.py", line 193 in send
  File "/venv-path/django/test/utils.py", line 106 in instrumented_test_render
  File "/venv-path/django/template/base.py", line 207 in render
  ...

Thread 0x00007f5d4bcb3700 (most recent call first):
  File "/usr/lib64/python3.5/selectors.py", line 376 in select
  File "/usr/lib64/python3.5/socketserver.py", line 232 in serve_forever
  File "/venv-path/django/core/servers/basehttp.py", line 174 in run
  File "/venv-path/django/core/management/commands/runserver.py", line 149 in inner_run
  File "/venv-path/django/utils/autoreload.py", line 227 in wrapper

Thread 0x00007f5d61887740 (most recent call first):
  File "/venv-path/django/utils/autoreload.py", line 281 in reloader_thread
  File "/venv-path/django/utils/autoreload.py", line 298 in python_reloader
  File "/venv-path/django/utils/autoreload.py", line 332 in main
  File "/venv-path/django/core/management/commands/runserver.py", line 110 in run
  File "/venv-path/django/core/management/commands/runserver.py", line 101 in handle
  File "/venv-path/django/core/management/base.py", line 330 in execute
  File "/venv-path/django/core/management/commands/runserver.py", line 62 in execute
  File "/venv-path/django/core/management/base.py", line 283 in run_from_argv
  File "/venv-path/django/core/management/__init__.py", line 355 in execute
  File "/venv-path/django/core/management/__init__.py", line 363 in execute_from_command_line
  File "manage.py", line 15 in <module>
Aborted

Por enquanto, estou bem com a execução do 1.7, mas não sei por onde começar a me aprofundar nesse problema. Alguma ideia, conselho ou esperançosamente solução? Desde já, obrigado.

Fonte

FlipperPA

👍6

Comentários muito úteis

Possivelmente relacionado a https: //github.com/wagtail/wagtail/issues/2874 ...?

gasman em 7 jun. 2017

👍3

Todos 11 comentários

Posso confirmar o mesmo problema ao usar DDT 1.8 com Django 1.8.

patchman-daniel em 6 jun. 2017

Já vi o mesmo problema - ele foi acionado para mim ao usar um bloco StreamField que especificou um modelo. Adicionar esse modelo à configuração da barra de ferramentas de depuração SKIP_TEMPLATE_PREFIXES foi uma solução alternativa. Pelo que me lembro (embora tenha sido há algum tempo), o problema raiz era que o objeto de bloco renderiza um modelo em seu método __str__ , o que leva a uma recursão infinita no painel TEMPLATES da barra de ferramentas de depuração.

mcoconnor em 6 jun. 2017

@gasman Achei que você gostaria de dar uma olhada neste problema.

FlipperPA em 7 jun. 2017

Possivelmente relacionado a https: //github.com/wagtail/wagtail/issues/2874 ...?

gasman em 7 jun. 2017

👍3

Eu experimentei a mesma coisa com DDT 1.8, Django 1.11.2 e Wagtail 1.10.1.
Reproduzido com Python 3.6, 3.6.1 e 3.7a

Após alguma investigação, há um loop infinito criado em painéis.py : value aqui pode ser um StructValue cuja representação de string é na verdade uma renderização de modelo que dispara um sinal template_rendered .

smendes em 7 jun. 2017

Eu fiz um patch de macaco para fazê-lo funcionar para aqueles que usam o Wagtail. O patch está aqui:

https://github.com/FlipperPA/django-debug-toolbar/commit/e68cfa509566bf5332c37f03c0fd9753a873d491

Eu não espero que isso deva ser um PR, já que é específico do Wagtail.

FlipperPA em 23 jun. 2017

Outro hotfix para isso é excluir os modelos usados por StructBlock da barra de ferramentas de depuração. Por exemplo

class MyStructBlock(StructBlock):
    ...
    class Meta:
        ...
        template = 'myblocks/structblock.html'

E adicionar ao arquivo settings.py :

DEBUG_TOOLBAR_CONFIG = {
    'SKIP_TEMPLATE_PREFIXES': ('django/forms/widgets/', 'admin/widgets/', 'myblocks/structblock.html'),
}

Do documento DDT para SKIP_TEMPLATE_PREFIXES :

Os modelos que começam com essas strings são ignorados ao coletar modelos e contextos renderizados. Os widgets de formulário baseados em modelo são ignorados por padrão porque o painel HTML pode facilmente crescer para centenas de megabytes com muitos campos de formulário e muitas opções.

Funciona para mim.

milkaknap em 30 jun. 2017

👍2

Tivemos esse problema com o Django Debug Toolbar 1.8 e django-floppyforms e corrigimos esse problema de maneira semelhante:

DEBUG_TOOLBAR_CONFIG = {
    'SKIP_TEMPLATE_PREFIXES': (
        'django/forms/widgets/',
        'admin/widgets/',
        'floppyforms/'
    ),
    'DISABLE_PANELS': {
        'debug_toolbar.panels.redirects.RedirectsPanel',
        'debug_toolbar.panels.redirects.TemplatesPanel'
    },
}

Também decidimos desabilitar o TemplatesPanel por padrão porque ele estava deixando a página muito lenta. O carregamento da página foi três vezes mais lento em comparação com o Django Debug Toolbar 1.7.