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        "author": "Pawel",
        "author_email": "inne.poczta@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 5 - Production/Stable",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 3 :: Only",
            "Topic :: Software Development :: Libraries"
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        "description": "data\\_object\n============\n\nDescription:\n------------\n\nSimple base class for creating data object (it means objects, dedicated\nto storing data only). It's a little bit similar to `case\nclass <https://docs.scala-lang.org/tour/case-classes.html>`__ from\nScala. Using it as base class, You don't need to take care of data\nobjects boilerplate (like \\_\\_str\\_\\_, \\_\\_eq\\_\\_, \\_\\_hash\\_\\_\nmethods). Main features: \\* Objects are considered to be equal based on\npublic fields (method with names started with \\_ are not took into\naccount) values instead of object identity \\* \\_\\_str\\_\\_ and\n\\_\\_repr\\_\\_ methods return values based on public fields \\* Static\nmethod for creating instances from dictionary. Main difference to dict\nunpacking is that all non matching keys are ignored and default values\nare supported \\* there are two base classes: **DataObject** and\n**ImmutableDataObject**. The second on creates immutable object (so\nvalue assigned once to field, cannot be changed)\n\n**WARNING:** > In future version default behavior may change. It's still\nunder consideration, whether two different classes with the same set of\nfields and values should be equal\n\nInstall\n-------\n\n``pip install data_object``\n\nUsage\n-----\n\nDataObject\n^^^^^^^^^^\n\n.. code:: python\n\n    from data_object import DataObject\n\n\n    class CustomClass(DataObject):\n        class_member = 'XYZ'\n\n        def __init__(self, foo, bar):\n            self.foo = foo\n            self.bar = bar\n\n        @property\n        def other(self):\n            return 'ABC'\n\nStr and Repr:\n\n\n.. code:: python\n\n    a = CustomClass('a', 'b')\n    print(a) # output: CustomClass: {\"bar\": b, \"class_member\": XYZ, \"foo\": a, \"other\": ABC}\n    print(repr(a)) # output: CustomClass(bar=b, class_member=XYZ, foo=a, other=ABC)\n\nEquality and Hash\n\n\n.. code:: python\n\n    class OtherClass(DataObject):\n        def __init__(self, foo, bar):\n            self.foo = foo\n            self.bar = bar\n\n    a = CustomClass('a', 'b')\n    b = CustomClass('a', 'b')\n    c = CustomClass('a', 'z')\n    d = OtherClass('a', 'b')\n\n    a == b # True\n    a == c # False\n    a == d # True\n\n    z = set()\n    z.add(a)\n    z.add(b)\n    z.add(c)\n    z.add(d)\n    print(z) # output: {CustomClass(bar=z, foo=a), CustomClass(bar=b, foo=a)}\n\nCreating instances from dict\n\n\n.. code:: python\n\n    class OtherClass(DataObject):\n        def __init__(self, a, b, c='xyz'):\n            self.a = a\n            self.b = b\n            self.c = c\n\n    params1 = {'a': 'aaa', 'b': 'bbb', 'c': 'ccc'}\n    params2 = {'a': 'xxx', 'b': 'yyy'}\n    params3 = {'a': 'xxx'}\n\n    inst1 = OtherClass.from_dict(params1)\n    inst2 = OtherClass.from_dict(params2)\n    inst3 = OtherClass.from_dict(params3, none_if_not_found=True)\n\n    print(inst1) # output: OtherClass: {\"a\": aaa, \"b\": bbb, \"c\": ccc}\n    print(inst2) # output: OtherClass: {\"a\": xxx, \"b\": yyy, \"c\": xyz}\n    print(inst3) # output: OtherClass: {\"a\": xxx, \"b\": None, \"c\": xyz}\n\nCopy instance (especially useful for immutable objects)\n\n\n.. code:: python\n\n    primary_inst = CustomClass(foo='abc', bar='xyz')\n    inst1 = primary_inst.copy()\n    inst2 = primary_inst.copy(bar='aaa')\n    inst3 = primary_inst.copy(bar='aaa', other='some')\n\n    print(repr(primary_inst)) # output: CustomClass(bar=xyz, foo=abc)\n    print(repr(inst1)) # output: CustomClass(bar=xyz, foo=abc)\n    print(repr(inst2)) # output: CustomClass(bar=aaa, foo=abc)\n    print(repr(inst3)) # output: CustomClass(bar=aaa, foo=abc)\n\nImmutableDataObject\n^^^^^^^^^^^^^^^^^^^\n\n.. code:: python\n\n    from data_object import ImmutableDataObject\n\n    class CustomImmutableClass(ImmutableDataObject):\n        def __init__(self, foo, bar):\n            self.foo = foo\n            self.bar = bar\n\n    inst = CustomImmutableClass('abc', 'xyz')\n    print(inst) # output: CustomImmutableClass: {\"bar\": xyz, \"foo\": abc}\n\n    inst.foo = 'aaa'\n\nwill produce exception:\n\n::\n\n    Traceback (most recent call last):\n    ...\n    data_object.exceptions.ImmutableObjectViolation: Changing attributes not permitted for immutable object\n\n\n",
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