在汉字和字母数字之间添加空格，用来格式化md文档

beautify_text.py

import re
import string
import sys
import time

"""
在汉字和字母数字之间添加空格
"""


def backup(file):
    with open(file + '.back', 'wb') as back_up:
        with open(file, 'rb') as f:
            back_up.write(f.read())


def beautify(file):
    with open(file, 'r', encoding='utf8') as f:
        content = f.read()
    content_list = list(content)
    index_list = []
    string_digits = string.ascii_lowercase + string.ascii_uppercase + string.digits
    for index, data in enumerate(content_list):
        if index + 1 >= len(content_list):
            break
        next_word = content_list[index + 1]
        if (re.findall(r'[\u4e00-\u9fa5]', data) and next_word in string_digits) or (
                re.findall(r'[\u4e00-\u9fa5]', next_word) and data in string_digits):
            index_list.append(index)
    i = 0
    # 在两个字中间加空格的话需要将索引加一
    for a in index_list:
        content_list.insert(a + i + 1, ' ')
        i += 1
    with open(file, 'w') as f:
        f.write(''.join(content_list))


if __name__ == '__main__':
    path = sys.argv[1:]
    if len(path) > 1 or len(path) == 0:
        print('文件过多或过少...')
        time.sleep(3)
        sys.exit(0)
    backup(path[0])
    beautify(path[0])