A python script to generate [cat kaomoji](https://gist.github.com/mys721tx/5400031).

CatKaomoji.py

# -*- coding: utf-8 -*-
"""
CatKaomoji.py: Generate cat kaomoji.
"""

import itertools
import codecs

EYES = [
    (u"O",), (u"￣",), (u"ㄒ",), (u"▼",), (u"°",), (u"╯", u"╰"), (u"￢",),
    (u"^",), (u"'",), (u"‵", u"′"), (u"⊙",), (u"❤",), (u"⊝",), (u"⊚",),
    (u"ಥ",), (u"→",), (u"←",), (u"❂",), (u"✦",), (u"﹂",), (u"︸",),
    (u"ಠ",), (u"⌒",), (u"。",), (u"゜",), (u"✪",), (u"✖",), (u"￥",), (u"·",),
    (u"◑",), (u"Φ",), (u"ರ",), (u"⓿",), (u"◕",), (u"Φ",), (u"╥",), (u"θ",),
    (u"////",), (u"☆",), (u"╹",), (u">", u"<"), (u"΄◉", u"◉‵"), (u"≧", u"≦"),
    (u"▰▰￣", u"￣▰▰")
]

MOUTHS = [
    u"_", u"▽", u"□", u"﹏", u"Д", u"ﺏ", u"╭╮", u"﹃", u"皿", u"益", u"ω", u"w",
    u"‿", u"◞౪◟", u"”", u"ヘ", u"3", u"ε", u"︿", u"_, ", u"ܫ"
]

def main():
    """
    Generate cat faces.
    """

    with codecs.open("cat_kaomoji.txt", "w", "utf-8") as file:
        for faces in itertools.product(EYES, MOUTHS):
            # eyes is a single element tuple when two eyes are the same.
            # otherwise eyes is a two-element tuple.
            try:
                (eye_left, eye_right), mouth = faces
                file.write((u"<(={0}{2}{1}=)>\n".format(eye_left, eye_right, mouth)))
            except ValueError:
                (eye_left,), mouth = faces
                file.write((u"<(={0}{1}{0}=)>\n".format(eye_left, mouth)))

if __name__ == "__main__":
    main()