Question

由于某些原因，我无法在空白文本文件中写任何内容。我最后使用了file.close（），但它仍然无法正常工作。所以有人能指出我可能会出错的地方吗？

以下是完整的代码，基本上我正在做的是从文本文件中检索唯一的电子邮件地址，然后将这些唯一的电子邮件与唯一的五位数字匹配，最后写入一个新文件，用这些数字替换电子邮件

import re
import random


email_list = []
anon = {}
number_list = []

##There are 54 unique emails, so I set len(number_list) = 54 here
while len(number_list) < 54:
    rand = random.randint(10000,99999)
    rand = '%%' + str(rand) + '%%'
    if rand not in number_list:
        number_list.append(rand)

i = 0

a = open('mbox.txt','r')
for line in a:
    if re.findall(r'[A-Za-z\.-]+\S@[\w\.-]+\.[\w]+',line):
        email = re.findall(r'[A-Za-z\.-]+\S@[\w\.-]+\.[\w]+',line)[0]
        if email not in email_list:
            email_list.append(email)
            anon[email] = number_list[i]
            i += 1
    else:
            email = "NA"


b = open('mbox-anon.txt','wt', encoding='utf-8')

for line in a:
    for email in anon:
        try:
            linereplace = line.replace(email,anon[email])
            b.write(linereplace)
        except:
            pass
a.close()
b.close()

Answer 1

假设您打算替换第一个文件内容并将它们放入第二个文件，您应该用{/ 1>替换for line in b

a.seek(0)
for line in a:

或在第一个循环之前打开b，然后添加

b.write(line.replace(email, anon[email]))

每次迭代。

Answer 2

我认为这段代码可以满足您的需求。它会读取文件mbox.txt，从中提取所有电子邮件，并根据您的方法将每个唯一的电子邮件地址映射到5位数值。然后它将相同的数据写入mbox-anon.txt，用每个电子邮件地址替换相应的5位数值。

import random
import re


def generate_crypto_value():
    return '%%{}%%'.format(random.randint(10000, 99999))


def obscure_emails(file_in, file_out, email_masker):
    with open(file_in) as f_in, open(file_out, 'w') as f_out:
        data = f_in.read()

        email_pattern = r'[A-Za-z\.-]+\S@[\w\.-]+\.[\w]+'
        for email in set(re.findall(email_pattern, data)):
            data = data.replace(email, email_masker())

        f_out.write(data)


if __name__ == '__main__':
    obscure_emails(
        file_in='mbox.txt',
        file_out='mbox-anon.txt',
        email_masker=generate_crypto_value)

运行前的mbox.txt示例

Here's one address: foo.bar@email.com
Another address: baz@hotmail.org
And the first address again: foo.bar@email.com with some text after it

运行后的mbox-anon.txt示例

Here's one address: %%61286%%
Another address: %%51955%%
And the first address again: %%61286%% with some text after it

python写不起作用

2 个答案: