To make a long story short: sometimes you need to break into the debugger in the middle of a Script (Python). To prevent the frustrating Unauthorized: import of 'pdb' is unauthorized message, use this enablesettrace package.

This package supports importing the pdb module. It is a fork of the original Products.enablesettrace package which still resides in the Zope Subversion Repository. The only change made was turning the package into an egg.

It also incorporates the monkeypatch from the zdb product from Chris Withers.

The installation is as simple as making sure the package is located on the Python path. For example when you are using zc.buildout list Products.enablesettrace in the eggs section:

[buildout]
...
eggs =
    ...
    Products.enablesettrace

This code was originally contributed by Zach Bir and committed by Jim Fulton. Mark van Lent eggified the product.

Jean Jordaan snarfed Chris's code from https://github.com/Simplistix/zdb There is more in zdb that may be worth porting.