Package: py-context
Python dict with stacked context dataFree software: MIT licenseGitHub:https://github.com/dealertrack/py-contextInstallingYou can installpy-contextusing pip:$ pip install py-contextExample>>> context = Context({'user': 'Fred', 'city': 'Bedrock'})
>>> context['user']
'Fred'
>>> context['city']
'Bedrock'
>>> context.push({'user': 'Barney'})
>>> context['user']
'Barney'
>>> context['city']
'Bedrock'
>>> context.pop()
{'user': 'Barney'}
>>> context['user']
'Fred'Context also supports signals.
Signal handler can be attached globally:>>> @context_key_changed.connect
... def handler(sender, context, key, new, old):
...     print(key, new, old)

>>> context = Context()
>>> context['hello'] = 'world'
hello world <Missing>Or to individual context instances:>>> def handler(sender, context, key, new, old):
...     print(key, new, old)
>>> context = Context()
>>> context_key_changed.connect(handler, sender=context)Supported signals:>>> @context_initialized.connect
... def handler(sender, context):
...     pass

>>> @pre_context_changed.connect
... def handler(sender, context):
...     pass

>>> @post_context_changed.connect
... def handler(sender, context):
...     pass

>>> @context_key_changed.connect
... def handler(sender, context, key, new, old):
...     passAdditionally,ClassSignallingContextcan be used to subscribe signals
by sender classes, not instances:>>> class TestContext(ClassSignallingContext):
...     pass
>>> def context_key_changed_handler(sender, context, key, new, old):
...     print(key, new, old)
>>> _ = context_key_changed.connect(context_key_changed_handler, sender=TestContext)

>>> context = Context()
>>> class_context = TestContext()

>>> context['foo'] = 'bar'
>>> class_context['foo'] = 'bar'
foo bar <Missing>TestingTo run the tests you need to install testing requirements first:$ make installThen to run tests, you can usenosetestsor simply use Makefile command:$ nosetests -sv
# or
$ make testHistory0.3.1 (2018-04-11)Added support for*args,**kwargsinContext.push().Added__dir__support.0.3.0 (2018-02-16)Added signals support -context_initialized,pre_context_changed,post_context_changedandcontext_key_changed. See README for examples.0.2.1 (2017-07-28)Excluding tests from being installed0.2.0 (2017-05-11)Add attribute supportAdd make watch target0.1.0 (2017-03-22)First release on PyPI.CreditsOriginallyContextwas taken fromGenshiproject.
SeeLICENSEfor copyright notices.Development LeadMiroslav Shubernetskiy  -https://github.com/miki725ContributorsSerkan Hosca -https://github.com/shoscaCopyright (C) 2006-2010 Edgewall SoftwareCopyright (C) 2017 Dealertrack Technologies, Inc.All rights reserved.Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in
   the documentation and/or other materials provided with the
   distribution.
3. The name of the author may not be used to endorse or promote
   products derived from this software without specific prior
   written permission.

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