Question

我需要使用网址下载文件 - ＆gt; https://readthedocs.org/projects/django/downloads/pdf/latest/

此网址重定向到带有.pdf文件的网址。

如何使用python使用此URL下载该文件？

我试过了： -

import urllib
def download_file(download_url):
    web_file = urllib.urlopen(download_url)
    local_file = open('some_file.pdf', 'w')
    local_file.write(web_file.read())
    web_file.close()
    local_file.close()

if __name__ == 'main':
    download_file('https://readthedocs.org/projects/django/downloads/pdf/latest/')

但这不起作用

Answer 1

import requests
url = 'https://readthedocs.org/projects/django/downloads/pdf/latest/'
r = requests.get(url, allow_redirects=True)  # to get content after redirection
pdf_url = r.url # 'https://media.readthedocs.org/pdf/django/latest/django.pdf'
with open('file_name.pdf', 'wb') as f:
    f.write(r.content)

如果您想从其他方法下载该文件，或者您只想获得最终重定向的网址，可以使用requests.head()，如下所示：

r = requests.head(url, allow_redirects=True)  # to get only final redirect url

Answer 2

这将有效：

>>> import urllib
>>> urllib.urlretrieve('https://readthedocs.org/projects/django/downloads/pdf/latest/', 'filename.pdf')

如何从重定向的URL下载文件？

2 个答案: