Script to remove leading dots from @apply statements - https://tailwindcss.com/docs/upgrading-to-v2#remove-leading-dot-from-apply-statements

migrate_tailwind_apply.py

#!/usr/bin/env python3

import os
import sys

if __name__=="__main__":
    if len(sys.argv) >  1:
        path = sys.argv[1]
    else:
        sys.exit("The folder path is required")

for subdirectories, directories, files in os.walk(path):
    for filename in files:
        fullpath = subdirectories + os.path.sep + filename

        if fullpath.endswith('.css') or fullpath.endswith('.scss') or fullpath.endswith('.less'):
            data = []
            with open(fullpath, 'r') as fstream:
                for line in fstream:
                    line = line.rstrip()
                    pieces = line.split(' ')
                    if len(pieces) > 0 and '@apply' in pieces:
                        updated_pieces = [item.replace('.', '', 1) for item in pieces]
                        data.append(' '.join(updated_pieces) + "\n")
                    else:
                        data.append(line + "\n")
            with open(fullpath, 'w') as fstream:
              fstream.writelines(data)

this just saved me hours! thanks!