String functionality

The numpy.strings module provides a set of universal functions operating on arrays of type numpy.str_ or numpy.bytes_. For example,

These universal functions are also used in numpy.char, which provides the numpy.char.chararray array subclass, in order for those routines to get the performance benefits as well.

String operations

.. autosummary:: 
    :toctree:generated/
    add
    center
    capitalize
    decode
    encode
    expandtabs
    ljust
    lower
    lstrip
    mod
    multiply
    partition
    replace
    rjust
    rpartition
    rstrip
    slice
    strip
    swapcase
    title
    translate
    upper
    zfill

Comparison

The numpy.strings module also exports the comparison universal functions that can now operate on string arrays as well.

.. autosummary:: 
    :toctree:generated/
    equal
    not_equal
    greater_equal
    less_equal
    greater
    less

String information

.. autosummary:: 
    :toctree:generated/
    count
    endswith
    find
    index
    isalnum
    isalpha
    isdecimal
    isdigit
    islower
    isnumeric
    isspace
    istitle
    isupper
    rfind
    rindex
    startswith
    str_len