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README.rst

Cassette

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.

Installation

$ pip install cassette

Documentation

Latest documentation: cassette.readthedocs.org

License

cassette is available under the MIT License.

Copyright Uber 2013, Charles-Axel Dein <charles@uber.com>

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Store and replay HTTP requests made in your Python app

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