Twemoji Codepoint -> Name Converter ~ Run in twemoji folder, which you should clone from: https://github.com/twitter/twemoji

converter.py

import os
import shutil
import emoji
import time

CONVERTED_DIR = 'name_converted'
SOURCE_DIR = 'assets/svg'

class EmojiRenamer:
    def __init__(self):
        self.dest_dir = os.path.join(CONVERTED_DIR, (str(int(time.time()))))
        os.makedirs(self.dest_dir, exist_ok=True)
        self.unicode_dict = emoji.unicode_codes.EMOJI_DATA
        self.rename_files()

    def get_emoji_name(self, codepoints):
        name = None
        codepoints = ''.join([chr(int(codepoint, 16)) for codepoint in codepoints.split('-')])
        if codepoints in self.unicode_dict:
            name = self.unicode_dict[codepoints]['en']
            invalid_chars = ':-*'
            for char in invalid_chars:
                name = name.replace(char, '_')
            name = name.lower().strip('_')
        return name

    def rename_files(self):
        for filename in os.listdir(SOURCE_DIR):
            basename, ext = os.path.splitext(filename)
            name = self.get_emoji_name(basename)
            if name:
                new_filename = name + ext
                new_filepath = os.path.join(self.dest_dir, new_filename)
                shutil.copy(os.path.join(SOURCE_DIR, filename), new_filepath)

EmojiRenamer()