ENH: Allow inplace arithmetic operations · Issue #5104 · pandas-dev/pandas (original) (raw)

In current master (and before the initial arithmetic refactor), __iadd__ doesn't do anything, it's just a synonym for __add__ (or not defined). (just for reference, v0.12.0 had __iadd__ = __add__ on Series and no __add__ defined on DataFrame). It would be great to support in place ops on += and friends. Is this possible to do?