Unable to debug 4.0.2 anymore (unlike 3.0.x)

[Vlad S.]

Hi,

4.0.2 seems to not support python debugger anymore.

3.0.20 could be started with reviewboard.wsgi like that -

import os
import sys
os.environ['DJANGO_SETTINGS_MODULE'] = "reviewboard.settings"
os.environ['PYTHON_EGG_CACHE'] = "/var/www/rb/tmp/egg_cache"
os.environ['HOME'] = "/var/www/rb/data"
sys.path = ['/var/www/rb/conf'] + sys.path
import django.core.handlers.wsgi
class Debugger:
    def __init__(self, object):
        self.__object = object

    def __call__(self, *args, **kwargs):
        import pdb, sys
        debugger = pdb.Pdb()
        debugger.use_rawinput = 0
        debugger.reset()
        sys.settrace(debugger.trace_dispatch)

        try:
            return self.__object(*args, **kwargs)
        finally:
            debugger.quitting = 1
            sys.settrace(None)

application = Debugger(django.core.handlers.wsgi.WSGIHandler())

I followed 4.0.2 release notes and it returned:

ImportError: No module named django.core.wsgi

import os
import sys
os.environ['REVIEWBOARD_SITEDIR'] = '/var/www/rb'
from django.core.wsgi import get_wsgi_application

class Debugger:
    def __init__(self, object):
        self.__object = object

    def __call__(self, *args, **kwargs):
        import pdb, sys
        debugger = pdb.Pdb()
        debugger.use_rawinput = 0
        debugger.reset()
        sys.settrace(debugger.trace_dispatch)

        try:
            return self.__object(*args, **kwargs)
        finally:
            debugger.quitting = 1
            sys.settrace(None)

application = Debugger(get_wsgi_application())

Any ideas?

-- Vlad

[Christian Hammond]

That module should be there. Make sure you’re running under the expected versions of Python and Django at the top of the script:

import django

Import says

print(django.VERSION)

print(sys.version_info)

Christian

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[Vlad S.]

Import says:

(1, 11, 29, u'final', 0)

sys.version_info(major=2, minor=7, micro=5, releaselevel='final', serial=0)

and mod_wsgi-express log says:

ImproperlyConfigured: Requested setting LOGGING_CONFIG, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

пятница, 25 июня 2021 г. в 23:30:38 UTC+3, Christian Hammond:

[Christian Hammond]

Hi Vlad,

Can you try changing that wsgi import to:

    from reviewboard.wsgi import application

I think that's where things have gone wrong.

Christian

To view this discussion on the web visit https://groups.google.com/d/msgid/reviewboard-dev/33b08bea-86b6-409b-9746-63cceda6feecn%40googlegroups.com.

[Vlad S.]

it ends up with

[..]application = Debugger(get_wsgi_application())
[..] NameError: name 'get_wsgi_application' is not defined

четверг, 1 июля 2021 г. в 23:47:49 UTC+3, Christian Hammond:

[Christian Hammond]

You'll need the `application` import from reviewboard.wsgi. You shouldn't call `get_wsgi_application()` yourself.

Christian

To view this discussion on the web visit https://groups.google.com/d/msgid/reviewboard-dev/8647d547-6d07-4260-aa2c-ef48e8e1e806n%40googlegroups.com.

[Vlad S.]

https://www.reviewboard.org/docs/releasenotes/reviewboard/4.0/

says something different:

# If you see these lines:

import django.core.handlers.wsgi

application = django.core.handlers.wsgi.WSGIHandler()

# Change them to:

from django.core.wsgi import get_wsgi_application

application = get_wsgi_application()

My initial idea was to get pdb console to debug rare complicated cases.

I run RB with mod_wsgi-express:

/home/venvs/rb/bin/mod_wsgi-express start-server --user apache --group apache --deadlock-timeout 600 --enable-debugger --debugger-startup --envvars-script ./envvars /var/www/rb.example.com/htdocs/reviewboard.wsgi

perhaps python debugger is not the best way to debug RB.

-- Vlad

пятница, 2 июля 2021 г. в 02:12:26 UTC+3, Christian Hammond:

[Christian Hammond]

That information only applies if you still have the old environment settings (meaning our automated upgrade attempt failed). For your case, you have part of the new setup (stripping away the old environment settings and adding REVIEWBOARD_SITEDIR) but you’re not using our import, which makes use of that to set up the rest.

Christian

To view this discussion on the web visit https://groups.google.com/d/msgid/reviewboard-dev/2b834380-3ff1-4378-a3a3-1647d31f4590n%40googlegroups.com.