Hi trac devs,

quick question: what's the best way for a plugin to store some state
with per-request lifetime? Ideally for whatever trac version that's
running? :-)

concretely, I just noticed the IncludePages macro from trac-hacks, on
my 0.11 install (yes, I know, ancient), going into a neverending CPU
burning loop when used on a page X and including page X itself..... so
I want to put some recursion protection (a dict of pages walked during
the current request) into the code. This has to go into the " def
expand_macro(self, formatter, name, txt):" and work with state
available there.

So, is there such a best way to do it?

best regards & thanks in advance
  Patrick

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