How do I clear cache with Python Requests?

Requests does not do caching by default. You can easily plug it in by using something like CacheControl.

Add a 'Cache-Control: no-cache' header:

self.request = requests.get('http://google.com',
                            headers={'Cache-Control': 'no-cache'})

See https://stackoverflow.com/a/55613686/469045 for complete answer.

Late answer, but python requests doesn’t cache requests, you should use the Cache-Control and Pragma headers instead, i.e.:

import requests
h = {
    ...
    "Cache-Control": "no-cache",
    "Pragma": "no-cache"
}
r = requests.get("url", headers=h)
...

HTTP/Headers

• Cache-Control
  The Cache-Control general-header field is used to specify directives for caching mechanisms in both requests and responses. Caching directives are unidirectional, meaning that a given directive in a request is not implying that the same directive is to be given in the response.

• Pragma
  Implementation-specific header that may have various effects anywhere
  along the request-response chain. Used for backwards compatibility
  with HTTP/1.0 caches where the Cache-Control header is not yet
  present.

Directive

• no-cache
  Forces caches to submit the request to the origin server for
  validation before releasing a cached copy.

Note on Pragma:

Pragma is not specified for HTTP responses and is therefore not a
reliable replacement for the general HTTP/1.1 Cache-Control header,
although it does behave the same as Cache-Control: no-cache, if the
Cache-Control header field is omitted in a request. Use Pragma only
for backwards compatibility with HTTP/1.0 clients.

I was getting outdated version of a website and I thought about requests cache too, but adding no-cache parameter to headers didn’t change anything. It appears that the cookie I was passing, was causing the server to present outdated site.

import requests
h = {
    ...
    "Cache-Control": "no-cache",
    "Pragma": "no-cache",
    "Expires": "0"
}
r = requests.get("url", headers=h)