ENH: add the beginnings of an exception hierarchy specific to pandas
can you hold off on this for a few days? I've been working on cleaning up Exceptions already and that will make this easier to do (because it will be clearer which items actually need custom exceptions).
 sure thing
 Thanks :) I agree with you on the breakage aspect - most of the PRs I've
started recently have come from mucking about in pandas' exceptions (e.g.,
the weird issue with naming, etc.).

On Sat, Jun 29, 2013 at 12:12 PM, Phillip Cloud notifications@github.comwrote:

> sure thing
> 
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> Reply to this email directly or view it on GitHubhttps://github.com/pydata/pandas/pull/4083#issuecomment-20232489
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 i removed that comment because making invalidindexerror a subclass of keyerror leads to 630 broken tests
 so i just removed and everything went swimmingly
 but i'm sure your pr will be excellent
 heh - well, more along the lines of "Hey, why doesn't removing X make anything fail?" Oh...that's because of other Y thing."
 `InvalidIndexError` is an _internal_ (to indexing) exception...more like a signal to break out of deeply nested stuff, rather than a _real_ exception
 right, i discovered that using the empirical method :)
 I think there is a similar one in groupby
 @jtratner i think #3954 can subsume this....should i close?
 Absolutely. I need to revisit that soon and start getting more off of the
list...
