How can I see the entire HTTP request that's being sent by my Python application?


In my case, I'm using the requests library to call PayPal's API over HTTPS. Unfortunately, I'm getting an error from PayPal, and PayPal support cannot figure out what the error is or what's causing it. They want me to "Please provide the entire request, headers included".

How can I do that?

10/7/2014 3:37:17 PM

Accepted Answer

A simple method: enable logging in recent versions of Requests (1.x and higher.)

Requests uses the http.client and logging module configuration to control logging verbosity, as described here.


Code excerpted from the linked documentation:

import requests
import logging

# These two lines enable debugging at httplib level (requests->urllib3->http.client)
# You will see the REQUEST, including HEADERS and DATA, and RESPONSE with HEADERS but without DATA.
# The only thing missing will be the response.body which is not logged.
    import http.client as http_client
except ImportError:
    # Python 2
    import httplib as http_client
http_client.HTTPConnection.debuglevel = 1

# You must initialize logging, otherwise you'll not see debug output.
requests_log = logging.getLogger("requests.packages.urllib3")
requests_log.propagate = True


Example Output

$ python 
INFO:requests.packages.urllib3.connectionpool:Starting new HTTPS connection (1):
send: 'GET /headers HTTP/1.1\r\nHost:\r\nAccept-Encoding: gzip, deflate, compress\r\nAccept: */*\r\nUser-Agent: python-requests/1.2.0 CPython/2.7.3 Linux/3.2.0-48-generic\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Type: application/json
header: Date: Sat, 29 Jun 2013 11:19:34 GMT
header: Server: gunicorn/0.17.4
header: Content-Length: 226
header: Connection: keep-alive
DEBUG:requests.packages.urllib3.connectionpool:"GET /headers HTTP/1.1" 200 226
4/28/2016 6:45:26 AM

r = requests.get('', auth=('user', 'pass'))

r is a response. It has a request attribute which has the information you need.

r.request.allow_redirects  r.request.headers          r.request.register_hook
r.request.auth             r.request.hooks            r.request.response
r.request.cert             r.request.method           r.request.send
r.request.config           r.request.params           r.request.sent
r.request.cookies          r.request.path_url         r.request.session             r.request.prefetch         r.request.timeout
r.request.deregister_hook  r.request.proxies          r.request.url
r.request.files            r.request.redirect         r.request.verify

r.request.headers gives the headers:

{'Accept': '*/*',
 'Accept-Encoding': 'identity, deflate, compress, gzip',
 'Authorization': u'Basic dXNlcjpwYXNz',
 'User-Agent': 'python-requests/0.12.1'}

Then has the body as a mapping. You can convert this with urllib.urlencode if they prefer:

import urllib
b =
encoded_body = urllib.urlencode(b)

depending on the type of the response the .data-attribute may be missing and a .body-attribute be there instead.

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