Function english_upper

numpy/_core/code_generators/generate_umath.py:237–264

Apply English case rules to convert ASCII strings to all upper case. This is an internal utility function to replace calls to str.upper() such that we can avoid changing behavior with changing locales. In particular, Turkish has distinct dotted and dotless variants of the Latin letter

(s)

                              bytes(string.ascii_uppercase, "ascii"))

def english_upper(s):
    """ Apply English case rules to convert ASCII strings to all upper case.

    This is an internal utility function to replace calls to str.upper() such
    that we can avoid changing behavior with changing locales. In particular,
    Turkish has distinct dotted and dotless variants of the Latin letter "I" in
    both lowercase and uppercase. Thus, "i".upper() != "I" in a "tr" locale.

    Parameters
    ----------
    s : str

    Returns
    -------
    uppered : str

    Examples
    --------
    >>> import numpy as np
    >>> from numpy.lib.utils import english_upper
    >>> s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_'
    >>> english_upper(s)
    'ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
    >>> english_upper('')
    ''
    """
    uppered = s.translate(UPPER_TABLE)
    return uppered


# each entry in defdict is a Ufunc object.