BUG: pivot_table raises KeyError with nameless index and columns
PERF: speed up multi-key groupby
BUG: broadcasting with numpy scalars (GH8116)
Merge pull request #8119 from behzadnouri/numpy-scalar

BUG: broadcasting with numpy scalars (GH8116)
Merge pull request #8103 from sinhrks/pivot_dt

BUG: pivot_table raises KeyError with nameless index and columns
Merge branch 'groupby-speed-up' of https://github.com/behzadnouri/pandas into behzadnouri-groupby-speed-up
ENH: let get_dummies take a DataFrame

implement via 1d

fixup docstring, tests

add documentation

test for dicts
DEPR: deprecate convert_dummies

add depr to doc