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            "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
            "Programming Language :: Python :: 3.6",
            "Programming Language :: Python :: 3.7",
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        "description": "Connectors\n==========\n\nThe *Connectors* package facilitates the writing of block-diagram-like processing networks.\nFor this it provides decorators for the methods of processing classes, so they can be connected to each other.\nWhen a parameter in such a processing network is changed, the result values will also be updated automatically.\nThis is similar to a pipes and filters architecture, the observer pattern or streams.\n\nThis short example demonstrates the core functionality of the *Connectors* package by implementing a processing network of two sequential blocks, which double their input value:\n\n>>> import connectors\n>>>\n>>> class TimesTwo:\n...     def __init__(self, value=0):\n...         self.__value = value\n...\n...     @connectors.Input(\"get_double\")\n...     def set_value(self, value):\n...         self.__value = value\n...\n...     @connectors.Output()\n...     def get_double(self):\n...          return 2 * self.__value\n>>>\n>>> d1 = TimesTwo()                                     # create an instance that doubles its input value\n>>> d2 = TimesTwo().set_value.connect(d1.get_double)    # create a second instance and connect it to the first\n>>> d2.get_double()\n0\n>>> d1.set_value(2)\n>>> d2.get_double()                                     # causes the new input value 2 to be processed by d1 and d2\n8\n\n\nInstallation\n------------\n\nThe *Connectors* package requires Python version 3.6 or later.\nPython 3.5 might work, but this is not tested.\n\n::\n\n   pip3 install connectors\n\nDocumentation\n-------------\n\nThe documentation for the *Connectors* librariy can be found on `Read the Docs <https://connectors.readthedocs.io/en/latest/>`_.\n\n\nLicense\n-------\n\nThe *Connectors* package is published under the terms and conditions of the GNU lesser general public license version 3 or later (LGPLv3+).",
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