Replace binary numbers (ex. 0b00110101) with its hex representation (ex. 0x35). Useful for adopting arduino Sketch project sources for common IDE.

bin2hex.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from os import listdir
from os.path import isfile, join
import re


def bin2hex(dir_path, extensions):
    bin_match = re.compile('0b[01]{8}')
    for file_name in listdir(dir_path):
        file_path = join(dir_path, file_name)
        if isfile(file_path):
            if not extensions or any(file_name.endswith(ext) for ext in extensions):
                with open(file_path) as source_file:
                    source = source_file.read()
                    source, replace_count = bin_match.subn(lambda bin_num: '0x%02X' % int(bin_num.group(), 2), source)
                if replace_count:
                    with open(file_path, 'w') as source_file:
                        source_file.write(source)
                    print('%s: %u occurrence(s) were replaced' % (file_name, replace_count))


if __name__ == '__main__':
    path = 'd:\projects\embedded\led_key\TM1638'
    exts = ['.h', '.cpp']
    bin2hex(path, exts)