mutagen/apev2.py
def APEValue(value, kind):
    """APEv2 tag value factory.

    Use this if you need to specify the value's type manually.  Binary
    and text data are automatically detected by APEv2.__setitem__.
    """

    if kind in (TEXT, EXTERNAL):
        if not isinstance(value, text_type):
            # stricter with py3
            if PY3:
                raise TypeError("str only for text/external values")
        else:
            value = value.encode("utf-8")

    if kind == TEXT:
        return APETextValue(value, kind)
    elif kind == BINARY:
        return APEBinaryValue(value, kind)
    elif kind == EXTERNAL:
        return APEExtValue(value, kind)
    else:
        raise ValueError("kind must be TEXT, BINARY, or EXTERNAL")
def APEValue(value, kind):
    """APEv2 tag value factory.

    Use this if you need to specify the value's type manually.  Binary
    and text data are automatically detected by APEv2.__setitem__.
    """

    if kind in (TEXT, EXTERNAL):
        if not isinstance(value, text_type):
            # stricter with py3
            if PY3:
                raise TypeError("str only for text/external values")
        else:
            value = value.encode("utf-8")

    if kind == TEXT:
        return APETextValue(value, kind)
    elif kind == BINARY:
        return APEBinaryValue(value, kind)
    elif kind == EXTERNAL:
        return APEExtValue(value, kind)
    else:
        raise ValueError("kind must be TEXT, BINARY, or EXTERNAL")
APEv2 tag value factory.

    Use this if you need to specify the value's type manually.  Binary
    and text data are automatically detected by APEv2.__setitem__.