将整个文本处理成一行一个单词的形式

path = r'h:\kill a bird.txt'
path_over = r'h:\kill a bird new.txt'

# read all article and every_line put into list
max_list_1 = []
with open(path, 'r') as f:
    lines = f.readlines()

# process every_line : split ' '  convert signal word
for line in lines:
    line_1 = line.split(' ')
    for lin_word_1 in line_1:
        max_list_1.append(lin_word_1 + '\n')

temp_list = []
for lin_word_2 in max_list_1:
    if lin_word_2 != '\n':
        temp_list.append(lin_word_2)

max_list_2 = []
for lin_word_3 in temp_list:
    lin = lin_word_3.replace(',', '').replace('.', '').replace('\n{2,}', '\n').replace('(', '').replace(')', '').replace('!', ''). \
                    replace('\s+', '').replace('`', '').replace("'", '').replace(';', '').replace('-', '').replace('\xa1+', '')
    max_list_2.append(lin)

max_list_3 = []
for lin_word_3 in max_list_2:
    if lin_word_3 == '\n\n':
        continue
    max_list_3.append(lin_word_3)

with open(path_over, 'w') as f_over:
    f_over.writelines(max_list_3)