在python中将字符串合并到URL

Question

我必须将“字符串”类型的硬编码路径连接到一个 URL 以获得一个 URL 的结果。

url（不以“/”结尾）+“/path/to/file/”=new_url

我尝试使用 URL 连接进行连接，也尝试使用简单字符串 concat，但结果不是可以访问的 URL。 （不是URL地址无效）

mirror_url = "http://amazonlinux.us-east- 
2.amazonaws.com/2/core/latest/x86_64/mirror.list"

response = requests.get(mirror_url)
contents_in_url = response.content


## returns a URL as shown below but of string type which cannot be 
##concatenated to another string type which could be requested as a valid 
##URL.
'http://amazonlinux.us-east- 2.amazonaws.com/2/core/2.0/x86_64/8cf736cd3252ada92b21e91b8c2a324d05b12ad6ca293a14a6ab7a82326aec43'

path_to_add_to_url = "/repodata/primary.sqlite.gz"

final_url = contents_in_url + path_to_add_to_url

期望的结果：

不省略该文件的任何路径。

final_url = "http://amazonlinux.us-west-2.amazonaws.com/2/core/2.0/x86_64/8cf736cd3252ada92b21e91b8c2a324d05b12ad6ca293a14a6ab7a82326aec43/repodata/primary.sqlite.gz"

Answer 1

你需要通过response.text方法获取第一个响应的内容，而不是response.content：

import requests

mirror_url = "http://amazonlinux.us-east-2.amazonaws.com/2/core/latest/x86_64/mirror.list"

response = requests.get(mirror_url)
contents_in_url = response.text.strip()

path_to_add_to_url = "/repodata/primary.sqlite.gz"

response = requests.get(contents_in_url + path_to_add_to_url)

with open('primary.sqlite.gz', 'wb') as f_out:
    f_out.write(response.content)

print('Downloading done.')