Series.empty True if NDFrame is entirely empty [no items], meaning any of the axes are of length 0.

Series.nsmallest(*args, **kwargs)

DatetimeIndex.dtype = None

Panel.to_excel(path, na_rep='', engine=None, **kwargs)

Series.str.upper()

Series.resample(rule, how=None, axis=0, fill_method=None, closed=None, label=None, convention='start', kind=None, loffset=None, limit=None

DataFrame.irow(i, copy=False)

Series.str.zfill(width)

Series.str.rstrip(to_strip=None)

DataFrame.loc Purely label-location based indexer for selection by label. .loc[] is primarily label