z3c.evalexception 4.0

Debugging middlewares for zope.publisher-based web applications

z3c.evalexception provides two WSGI middlewares for debugging web applications running on the zope.publisher object publishing framework (e.g. Zope 3). Both middlewares will intercept an exception thrown by the application and provide means for debugging.

Interactive AJAX debugger

z3c.evalexception.ZopeEvalException lets you interactively debug exceptions from a browser. It is a small wrapper around the EvalException middleware from paste.evalexception. You can easily refer to it in a PasteDeploy-style configuration file using the ajax entry-point:

[filter-app:main]
use = egg:z3c.evalexception#ajax
next = zope

[app:zope]
use = egg:YourApp

[server:main]
use = egg:Paste#http
host = 127.0.0.1
port = 8080

Post-mortem pdb

z3c.evalexception.PostMortemDebug invokes pdb’s post-mortem mode when the application has thrown an exception. You can refer to it in a PasteDeploy-style configuration file using the pdb entry-point:

[filter-app:main]
use = egg:z3c.evalexception#pdb
next = zope

[app:zope]
use = egg:YourApp

[server:main]
use = egg:Paste#http
host = 127.0.0.1
port = 8080

Changes

4.0 (2023-12-18)

• Add support for Python 3.10, 3.11.

• Drop support for Python 2.7, 3.5, 3.6.

3.0 (2021-02-10)

• Add support for Python 3.5, 3.6, 3.7, 3.8 and 3.9.

2.0 (2007-08-23)

• Add the PostMortemDebug (pdb) middleware.

1.0 (2007-06-02)

• Initial release, featuring the Zope 3-compatible interactive AJAX debugger from Paste.