REF: use _constructor and ABCFoo to avoid runtime imports#25272
Merged
jreback merged 2 commits intopandas-dev:masterfrom Feb 11, 2019
Merged
REF: use _constructor and ABCFoo to avoid runtime imports#25272jreback merged 2 commits intopandas-dev:masterfrom
jreback merged 2 commits intopandas-dev:masterfrom