解析包含句点的 request.get() params 参数中的值 [英] Parsing values in params argument to request.get() which contain periods

问题描述

我正在使用 python 包请求向服务器发出获取请求.我的目标是复制某些已知的 http 请求并将它们合并到我的 python 脚本中.原始查询字符串包含一个键值对version=0%2E12"，我知道它是 url 编码的等价于version=0.12".下面是我正在做的复制 http 请求的示例.

I am using the python package requests to make a get request to a server. My goal is to replicate certain known http requests and incorporated them into my python script. The original query string contains one key-value pair 'version=0%2E12' which I know is the url encoded equivalent of 'version=0.12'. Below is an example of what I am doing to replicate the http request.

params = {
          'version'='0.12',
          'language'='en',
          ...
          }
 resp = requests.get(url, params)

生成的 url 查询字符串中包含 'version=0.12'.如果我尝试将 params 的设置更改为以下内容，

The resulting url query string has 'version=0.12' in it. If I try to change the setting of params to the following,

    params = {
          'version'='0%2E12',
          'language'='en',
          ...
          }

但结果查询字符串包含version=0%252E31".本质上，请求正在解析要进行 url 编码的 %.

but the resulting query string contains 'version=0%252E31'. Essentially, requests is parsing the % to be url encoded.

如何在不手动编写整个 url 的情况下获取正确解析带句点的 params 参数的请求?

How can I get requests to parse my params arguments with periods properly without manually writing the entire url?

推荐答案

请注意 . 是 URL 编码值中完全有效的字符.

Note that . is a perfectly valid character in a URL-encoded value.

您需要自己对值进行编码，绕过标准编码.我会使用 urllib.urlencode()，然后用 %2E 手动替换 . 字符.

You'd need to encode the values yourself, bypassing the standard encoding. I'd use urllib.urlencode(), then replace the . characters by %2E by hand.

然后您必须将编码的字符串作为查询参数附加到 URL，并配置 requests 以不重新编码值:

You then have to append the encoded string as a query parameter to the URL, and configure requests to not re-encode the values:

params = {
      'version'='0.12',
      'language'='en',
      ...
      }
params = urllib.urlencode(params)
params = params.replace('.', '%2E')
resp = requests.get('?'.join(url, params), config={'encode_uri': False})

设置为 False 的 encode_uri 参数在这里起作用；这是requests default 否则将重新编码整个 URL 以确保符合 RFC.

The encode_uri parameter set to False does the trick here; it's this requests default that otherwise will re-encode the whole URL to ensure RFC compliancy.

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