[Pandas-dev] PR's soon after 0.12

[Jeff Reback]

All,

a couple of big PR's that would like to merge soon after 0.12. Pls take a look and comment.

Series refactor:
https://github.com/pydata/pandas/pull/3482


comment on this pr for major refactor of Series to be a subclass of NDFrame
(and corresponding consolidation of methods et al)

Pretty much preserves all APIs (except small changes as noted) and perf.

Eval (primarily by @cpcloud):
https://github.com/pydata/pandas/pull/4164


provides a nice mechanism to evaluate directly with numexpr as well as expanded syntax

e.g.

df = DataFrame(randn(100000,2),columns=list('AB'))

df['A>0 and B>0'] (this is implemented by df.query(...))

as well as the generic: pd.eval('....')

(FYI the allowing of 'and' to be equivalent of '&') is the only real 'API' change here
in that its something that neither python nor numpy allow but makes syntax 'nicer'


thanks,

Jeff
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