如何在客户端获取paster/waitress应用程序的服务器堆栈跟踪

Question

我正在运行一个python金字塔应用程序，并对其进行restful调用。这是一个wsgi应用程序，使用waitress作为http服务器。目前，当我发出一个失败的http请求时，我得到如下消息：

Internal Server Error
The server encountered an unexpected internal server error

如何配置waitress或paster本身以获取显示堆栈跟踪的错误，如下所示：

Traceback (most recent call last):
  File "/.../pyramid/eggs/waitress-0.8.8-py2.7.egg/waitress/channel.py", line 337, in service
    task.service()
  File "/.../pyramid/eggs/waitress-0.8.8-py2.7.egg/waitress/task.py", line 173, in service
    self.execute()
  ...
  File "/.../pyramid/eggs/pyramid-1.4.5-py2.7.egg/pyramid/config/views.py", line 469, in _class_requestonly_view
    response = getattr(inst, attr)()
  File "/.../pyramid/dustin/views.py", line 139, in delete
    raise Exception('DELETE op failed; oid %s not found' % deleteItem)
Exception: DELETE op failed; oid 00x not found

我的paster配置是：

[app:main]
use = egg:myegg

pyramid.reload_templates = true
pyramid.debug_authorization = false
pyramid.debug_notfound = false
pyramid.debug_routematch = false
pyramid.debug_templates = true
pyramid.default_locale_name = es

couchdb.uri = http://couchdb-host:5984/
couchdb.db = myegg

[server:main]
use = egg:waitress#main
host = 0.0.0.0
port = 6543

# Begin logging configuration

[loggers]
keys = root

[handlers]
keys = console

[formatters]
keys = generic

[logger_root]
level = INFO
handlers = console

[handler_console]
class = StreamHandler
args = [sys.stdout]
level = DEBUG
formatter = generic

[formatter_generic]
format = %(asctime)s %(levelname)-5.5s [%(name)s][%(threadName)s] %(message)s

# End logging configuration

Answer 1

您是否可以使用Exception View来捕获任何异常，并在响应中返回堆栈跟踪？我使用了类似的方法来捕获所有的金字塔异常，记录它们，然后向用户显示一个“友好的”错误页面渲染器。