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Description:

betamax 0.9.0

Betamax is a VCR imitation for requests. This will make mocking out requests
much easier. It is tested on Travis CI.
Put in a more humorous way: “Betamax records your HTTP interactions so the NSA
does not have to.”

Example Use
from betamax import Betamax
from requests import Session
from unittest import TestCase

with Betamax.configure() as config:
config.cassette_library_dir = 'tests/fixtures/cassettes'

class TestGitHubAPI(TestCase):
def setUp(self):
self.session = Session()
self.headers.update(...)

# Set the cassette in a line other than the context declaration
def test_user(self):
with Betamax(self.session) as vcr:
vcr.use_cassette('user')
resp = self.session.get('https://api.github.com/user',
auth=('user', 'pass'))
assert resp.json()['login'] is not None

# Set the cassette in line with the context declaration
def test_repo(self):
with Betamax(self.session).use_cassette('repo'):
resp = self.session.get(
'https://api.github.com/repos/sigmavirus24/github3.py'
)
assert resp.json()['owner'] != {}

What does it even do?
If you are unfamiliar with VCR, you might need a better explanation of what
Betamax does.
Betamax intercepts every request you make and attempts to find a matching
request that has already been intercepted and recorded. Two things can then
happen:

If there is a matching request, it will return the response that is
associated with it.
If there is not a matching request and it is allowed to record new
responses, it will make the request, record the response and return the
response.

Recorded requests and corresponding responses - also known as interactions -
are stored in files called cassettes. (An example cassette can be seen in
the examples section of the documentation.) The directory you store your
cassettes in is called your library, or your cassette library.

VCR Cassette Compatibility
Betamax can use any VCR-recorded cassette as of this point in time. The only
caveat is that python-requests returns a URL on each response. VCR does not
store that in a cassette now but we will. Any VCR-recorded cassette used to
playback a response will unfortunately not have a URL attribute on responses
that are returned. This is a minor annoyance but not something that can be
fixed.