Issues with json matcher about betamax_matchers HOT 11 CLOSED

In [18]: u'\ufffd\ufffd\ufffd\ufffd\u0000\u0010JFIF`'.encode('utf-8')
Out[18]: '\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\x00\x10JFIF`'

#!/usr/bin/env python                                                                                                                                                              
from __future__ import print_function
import json
import sys

from betamax_matchers.json_body import JSONBodyMatcher
import betamax
import requests


def main():
    print('  Python: {:>6}'.format(sys.version.split()[0]))
    print(' Betamax: {:>6}'.format(betamax.__version__))
    print('Requests: {:>6}'.format(requests.__version__))

    betamax.Betamax.register_request_matcher(JSONBodyMatcher)

    with requests.Session() as session:
        with betamax.Betamax(session, cassette_library_dir='.') as recorder:
            recorder.use_cassette(
                'test', match_requests_on=['json-body'])
            response = session.post('https://httpbin.org/post', json={'a': 2})

    import pprint
    pprint.pprint(response.json())


if __name__ == '__main__':
    sys.exit(main())

 Betamax:  0.7.2
Requests: 2.11.0
Traceback (most recent call last):
  File "./betamax_issue.py", line 28, in <module>
    sys.exit(main())
  File "./betamax_issue.py", line 21, in main
    response = session.post('https://httpbin.org/post', json={'a': 2})
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/requests/sessions.py", line 514, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/requests/sessions.py", line 471, in request
    resp = self.send(prep, **send_kwargs)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/requests/sessions.py", line 581, in send
    r = adapter.send(request, **kwargs)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/betamax/adapter.py", line 123, in send
    interaction = current_cassette.find_match(request)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/betamax/cassette/cassette.py", line 133, in find_match
    if not interaction.match(curried_matchers):
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/betamax/cassette/interaction.py", line 58, in match
    return all(m(request) for m in matchers)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/betamax/cassette/interaction.py", line 58, in <genexpr>
    return all(m(request) for m in matchers)
  File "/Users/bboe/.venv/praw/lib/python3.5/site-packages/betamax_matchers/json_body.py", line 26, in match
    request_json = json.loads(request.body) if request.body else None
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/json/__init__.py", line 312, in loads
    s.__class__.__name__))
TypeError: the JSON object must be str, not 'bytes'

  Python:  3.5.2
 Betamax:  0.8.0
Requests: 2.12.1
{'args': {},
 'data': '{"a": 2}',
 'files': {},
 'form': {},
 'headers': {'Accept': '*/*',
             'Accept-Encoding': 'gzip, deflate',
             'Content-Length': '8',
             'Content-Type': 'application/json',
             'Host': 'httpbin.org',
             'User-Agent': 'python-requests/2.12.1'},
 'json': {'a': 2},
 'origin': '68.6.101.75',
 'url': 'https://httpbin.org/post'}

  Python:  3.5.2
 Betamax:  0.8.0
Requests: 2.12.1
Traceback (most recent call last):
  File "example.py", line 29, in <module>
    sys.exit(main())
  File "example.py", line 22, in main
    response = session.post('https://httpbin.org/post', json={'a': 2})
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/requests-2.12.1-py3.5.egg/requests/sessions.py", line 535, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/requests-2.12.1-py3.5.egg/requests/sessions.py", line 488, in request
    resp = self.send(prep, **send_kwargs)
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/requests-2.12.1-py3.5.egg/requests/sessions.py", line 609, in send
    r = adapter.send(request, **kwargs)
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/betamax-0.8.0-py3.5.egg/betamax/adapter.py", line 123, in send
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/betamax-0.8.0-py3.5.egg/betamax/cassette/cassette.py", line 133, in find_match
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/betamax-0.8.0-py3.5.egg/betamax/cassette/interaction.py", line 58, in match
  File "/Users/bboe/.venv/prawcore/lib/python3.5/site-packages/betamax-0.8.0-py3.5.egg/betamax/cassette/interaction.py", line 58, in <genexpr>
  File "/Users/bboe/src/betamax_matchers/betamax_matchers/json_body.py", line 31, in match
    request_json = json.loads(request.body) if request.body else None
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/json/__init__.py", line 312, in loads
    s.__class__.__name__))
TypeError: the JSON object must be str, not 'bytes'