Django-debug-toolbar: Desbordamiento de pila cuando se usa Django Debug Toolbar 1.8 (funciona bien en 1.7)

Creado en 1 jun. 2017 · 11Comentarios · Fuente: jazzband/django-debug-toolbar

Buenas tardes, recibo un error de desbordamiento de pila cuando intento usar DJDT 1.8 en rutas servidas por Wagtail CMS. Las mismas rutas / páginas funcionan con DJDT 1.7. Estoy ejecutando Django 1.11.2 y Wagtail 1.10.1. Aquí está el rastro:

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

Estoy bien con ejecutar 1.7 por ahora, pero no sé dónde empezar a investigar este problema. ¿Alguna idea, consejo o, con suerte, soluciones? Gracias por adelantado.

Fuente

FlipperPA

👍6

Comentario más útil

¿Posiblemente relacionado con https: //github.com/wagtail/wagtail/issues/2874 ...?

gasman en 7 jun. 2017

👍3

Todos 11 comentarios

Puedo confirmar el mismo problema cuando uso DDT 1.8 con Django 1.8.

patchman-daniel en 6 jun. 2017

He visto el mismo problema: se activó cuando usaba un bloque StreamField que especificaba una plantilla. Agregar esa plantilla a la configuración de la barra de herramientas de depuración SKIP_TEMPLATE_PREFIXES fue una solución alternativa. Según recuerdo (aunque fue hace algún tiempo), el problema principal era que el objeto de bloque representa una plantilla en su método __str__ , lo que provocó una recursividad infinita en el panel PLANTILLAS de la barra de herramientas de depuración.

mcoconnor en 6 jun. 2017

@gasman Pensé que le gustaría echar un vistazo a este problema.

FlipperPA en 7 jun. 2017

¿Posiblemente relacionado con https: //github.com/wagtail/wagtail/issues/2874 ...?

gasman en 7 jun. 2017

👍3

He experimentado lo mismo con DDT 1.8, Django 1.11.2 y Wagtail 1.10.1.
Lo reproduje con Python 3.6, 3.6.1 y 3.7a

Después de investigar un poco, hay un bucle infinito creado en paneles.py:128 , en el caso de Wagtail, el value aquí puede ser un StructValue cuya representación de cadena es en realidad una representación de plantilla que activa una señal template_rendered .

smendes en 7 jun. 2017

Lo he parcheado para que funcione para aquellos que usan Wagtail. El parche está aquí:

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

No espero que esto deba ser un PR, ya que es específico de Wagtail.

FlipperPA en 23 jun. 2017

Otra revisión para esto es excluir las plantillas utilizadas por StructBlock de la barra de herramientas de depuración. P.ej

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

Y agregue al archivo settings.py :

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

De DDT doc por SKIP_TEMPLATE_PREFIXES :

Las plantillas que comienzan con esas cadenas se omiten al recopilar plantillas y contextos renderizados. Los widgets de formulario basados en plantillas se omiten de forma predeterminada porque el HTML del panel puede crecer fácilmente a cientos de megabytes con muchos campos de formulario y muchas opciones.

Funciona para mi.

milkaknap en 30 jun. 2017

👍2

Tuvimos este problema con Django Debug Toolbar 1.8 y django-floppyforms y solucionamos este problema de una manera similar:

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

También decidimos deshabilitar TemplatesPanel de forma predeterminada porque ralentizaba mucho la página. La carga de la página fue tres veces más lenta en comparación con Django Debug Toolbar 1.7.