chararray.rindex(sub, start=0, end=None)

chararray.isdigit()

chararray.isnumeric()

chararray.find(sub, start=0, end=None)

chararray.startswith(prefix, start=0, end=None)

numpy.core.defchararray.splitlines(a, keepends=None)

chararray.strip(chars=None)

chararray.setfield(val, dtype, offset=0) Put a value into a specified place in a field defined by

numpy.core.defchararray.zfill(a, width)

chararray.copy(order='C') Return a copy of the array.