global name 'GeneratorExit' is not defined

[millman@…]

With Python 2.4 and Trac 10.5 certain macros (e.g., Image) raise an exception:

global name 'GeneratorExit' is not defined

I think GeneratorExit was introduced in Python 2.5: ​http://docs.python.org/whatsnew/pep-342.html

Removing the following lines

449 except GeneratorExit: 450 # never catch GeneratorExit 451 raise

from /usr/lib/python2.4/site-packages/trac/wiki/macros.py resolves this issue.

This is the reason the change in 10.5 was introduced: ​http://trac.edgewall.org/ticket/5339

Adding the following to the top of the module:

try:

GeneratorExit

except NameError:

class GeneratorExit(Exception): pass

would allow the fix for 5339 to stay.