On Tue, Sep 17, 2013 at 2:14 PM, <exar...@twistedmatrix.com> wrote: > I think there are still many unported dependencies of `twistd` to port > first. >
Sure, but every little bit helps, right? :) > Can someone comment as to why this was put there in the first place, and, >> specifically, why it can't just be "pass"? Is there some logging system >> that looks at the current exception or something when twistd (or some >> other >> script) starts? >> > > Both `log.err()´ and `Failure()´ look at the current exception. If we > don't `sys.clear_exc()´ here then the first piece of code that tries to use > either of those may get a surprising result. The current exception state > can last a long time so this surprise can hide for a remarkably long time > before showing up. > Okay, cool. From what I understand: 1. _preamble is just a hack to get bin/whatever to work right without installing (i.e. from a checkout) 2. (not too sure about this) in py3k, except statements do the clearing bit already: www.python.org/dev/peps/pep-3110/#semantic-changes So, does that mean we can do a try: ... ; except AttributeError and be done with it? The exception state also holds references to lots of extra things on the > stack which is undesirable even if there are no other side-effects. > > Jean-Paul > lvh
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