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"""Priority based json library imports.
Always serializes to bytes instead of unicode for zeromq compatibility
on Python 2 and 3.
Use ``jsonapi.loads()`` and ``jsonapi.dumps()`` for guaranteed symmetry.
Priority: ``simplejson`` > ``jsonlib2`` > stdlib ``json``
``jsonapi.loads/dumps`` provide kwarg-compatibility with stdlib json.
``jsonapi.jsonmod`` will be the module of the actual underlying implementation.
"""
# Copyright (C) PyZMQ Developers
# Distributed under the terms of the Modified BSD License.
from zmq.utils.strtypes import bytes, unicode
jsonmod = None
priority = ['simplejson', 'jsonlib2', 'json']
for mod in priority:
try:
jsonmod = __import__(mod)
except ImportError:
pass
else:
break
def dumps(o, **kwargs):
"""Serialize object to JSON bytes (utf-8).
See jsonapi.jsonmod.dumps for details on kwargs.
"""
if 'separators' not in kwargs:
kwargs['separators'] = (',', ':')
s = jsonmod.dumps(o, **kwargs)
if isinstance(s, unicode):
s = s.encode('utf8')
return s
def loads(s, **kwargs):
"""Load object from JSON bytes (utf-8).
See jsonapi.jsonmod.loads for details on kwargs.
"""
if str is unicode and isinstance(s, bytes):
s = s.decode('utf8')
return jsonmod.loads(s, **kwargs)
__all__ = ['jsonmod', 'dumps', 'loads']
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