Deprecation Warning: cassette has some known limitations and is not maintained anymore, we recommend using vcrpy instead.
Cassette stores and replays HTTP requests made in your Python app.
import urllib2
import cassette
with cassette.play("data/responses.yaml"):
# If the request is not already stored in responses.yaml, cassette
# will request the URL and store its response in the file.
r = urllib2.urlopen("http://www.internic.net/domain/named.root")
# This time, the request response must be in the file. The external
# request is not made. cassette retrieves the response from the
# file.
r = urllib2.urlopen("http://www.internic.net/domain/named.root")
assert "A.ROOT-SERVERS.NET" in r.read(10000)Cassette also supports the requests library.
import requests
with cassette.play("data/responses.yaml"):
r = requests.get("http://www.internic.net/domain/named.root")Note that requests stored between different libraries may not be compatible with
each other. That is, a request stored with urllib2 might still trigger an external
request is the same URL is requested with requests.
$ pip install cassetteLatest documentation: cassette.readthedocs.org
cassette is available under the MIT License.
Copyright Uber 2013, Charles-Axel Dein <charles@uber.com>