REF: avoid returning self in io.pytables (#29776)
REF: avoid returning self in io.pytables (#29776)


gfyoung/pandas,jreback/pandas,rs2/pandas,datapythonista/pandas,jorisvandenbossche/pandas,gfyoung/pandas,jreback/pandas,jreback/pandas,TomAugspurger/pandas,datapythonista/pandas,rs2/pandas,TomAugspurger/pandas,pandas-dev/pandas,datapythonista/pandas,dsm054/pandas,jorisvandenbossche/pandas,gfyoung/pandas,dsm054/pandas,rs2/pandas,jorisvandenbossche/pandas,dsm054/pandas,gfyoung/pandas,pandas-dev/pandas,datapythonista/pandas,TomAugspurger/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,dsm054/pandas,jreback/pandas,rs2/pandas,pandas-dev/pandas,jreback/pandas,gfyoung/pandas,pandas-dev/pandas,dsm054/pandas