Question

myfile.txt中的长网址必须是短网址。这是在myfile.txt中：

26-04-2018 | Publication  2018, 88936 , https://search.publications.com/pgm-2018-88936.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=0&sorttype=1&sortorder=4

19-04-2018 | Publication 2018, 8168 , https://search.publications.com/pgm-2018-8168.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=1&sorttype=1&sortorder=4

26-03-2018 | Publication 2018, 611724 , https://search.publications.com/pgm-2018-611724.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=2&sorttype=1&sortorder=4

01-02-2017 | Publication 2017, 1452026 , https://search.publications.com/pgm-2017-1452026.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=3&sorttype=1&sortorder=4

在python 2.7中有以下代码：

import re

with open('myfile.txt', 'r+') as myfile:
    data = myfile.read()
    url = re.findall(r'[^https.+?]', data)
    urlshort = re.findall(r'[^https.+html?]', data)
    for url in data:
        myfile.write(url.replace(url, urlshort, data))
myfile.close()

输出结果为：

追踪（最近一次通话）：文件＆＃34; /pyscripts/data.py"，第9行，in myfile.write（url.replace（url，urlshort，data）） TypeError：需要一个整数

如何在文件中进行此操作？

Answer 1

将{strong> re.sub 与(https.*html).*

一起使用

import re

s = """
26-04-2018 | Publication  2018, 88936 , https://search.publications.com/pgm-2018-88936.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=0&sorttype=1&sortorder=4    
19-04-2018 | Publication 2018, 8168 , https://search.publications.com/pgm-2018-8168.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=1&sorttype=1&sortorder=4  
26-03-2018 | Publication 2018, 611724 , https://search.publications.com/pgm-2018-611724.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=2&sorttype=1&sortorder=4    
01-02-2017 | Publication 2017, 1452026 , https://search.publications.com/pgm-2017-1452026.html?search=%3fzkt%3dextended%26pst%3dPublication%26vrt%3d%26zkd%3dInTitle%26dpr%3dAll%26spd%3d20180529%26epd%3d20180529%26sdt%3dDatePublication%26pubId%3d%26pnr%3d1%26rpp%3d10&resultInx=3&sorttype=1&sortorder=4
"""

print(re.sub(r'(https.*html).*', r'\1', s))

输出：

26-04-2018 | Publication  2018, 88936 , https://search.publications.com/pgm-2018-88936.html
19-04-2018 | Publication 2018, 8168 , https://search.publications.com/pgm-2018-8168.html
26-03-2018 | Publication 2018, 611724 , https://search.publications.com/pgm-2018-611724.html
01-02-2017 | Publication 2017, 1452026 , https://search.publications.com/pgm-2017-1452026.html

这样您就可以将re.sub的整个结果写入您的文件，而不是尝试替换您当前的方式。

在短网址中转换长网址 - 替换python

1 个答案: