numpy.core.defchararray.capitalize(a)

numpy.core.defchararray.lower(a)

numpy.core.defchararray.isdigit(a)

numpy.core.defchararray.center(a, width, fillchar=' ')

numpy.core.defchararray.join(sep, seq)

numpy.core.defchararray.isspace(a)

numpy.core.defchararray.ljust(a, width, fillchar=' ')

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

numpy.core.defchararray.not_equal(x1, x2)

numpy.core.defchararray.add(x1, x2)