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-rw-r--r--scripts/external_libs/zmq/utils/jsonapi.py59
1 files changed, 59 insertions, 0 deletions
diff --git a/scripts/external_libs/zmq/utils/jsonapi.py b/scripts/external_libs/zmq/utils/jsonapi.py
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index 00000000..865ca6d5
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+++ b/scripts/external_libs/zmq/utils/jsonapi.py
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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']
+