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R(estricted) E(xtended) Objects. Simple, reasonable fast, restricted/extended python objects.

Project description

ReOBJ:

R(estricted) E(xtended) Objects. Simple, reasonable fast, restricted/extended python objects.

HTML Documentation

HTML documentation of the project is hosted at: ReOBJ-HTML documentation

Or Package Documentation

Main Info

ReOBJ contains different restricted/extended python objects.

  • ReDICTs: Simple, reasonable fast, restricted/extended python dictionary objects.

  • ReLISTs: Simple, reasonable fast, restricted/extended list objects.

  • ReTUPLEs: Simple, reasonable fast, restricted/extended tuple objects.

  • ReMATRIXs: Simple, reasonable fast, restricted/extended list-of-tuples objects.

All `ReBASE classes - subclasses`:

  • can be dumped with json: but will lose any extra data like: key_order (list) or/and any extra_data dict

  • can be pickled

  • additional methods:

    • set_extra_data(), update_extra_data(), replace_extra_data(): Sets/updates key/value to the additional dictionary: extra_data

    • copy_recursively(): recursively copy: Supports recursively intermediate ReDICT, ReLIST, ReTUPLE, dicts, lists and tuples (and their subclasses: depending on there implementation though)

      • this will also copy any ReDICT / ReLIST / ReTUPLE / ReMATRIX extra_data dict and any key_order (list) and any extra_key_order (list)

    • copy_recursively_to_python_native_types(): recursively copy: changing all ReOBJ to native python types.

      • RdictIO, RdictFO, RdictFO2: to python `OrderedDict obj keeping their order (see also argument: use_extra_key_order)

      • all other ReDICT: objects will be replaced by normal python dict objs

      • all ReLIST obj will be replaced by normal python list objs

      • all ReTUPLE obj will be replaced by normal python tuple objs

      • all ReMATRIX obj will be replaced by normal python list of tuple objs

      Supports recursively intermediate ReDICT, ReLIST, ReTUPLE, dicts, lists and tuples (and their subclasses: depending on there implementation though)

    • topickle(): returns a new pickled dumps byte string from the obj

    • tojson(): returns a new json dumps string from the obj

    • tojson_keeporder(): returns a new json dumps string from the obj keeping the order of any RdictIO, RdictFO, RdictFO2

      • this uses first the: copy_recursively_to_python_native_types()

ReDICT

Overview Differences

  • Edict is similar to a normal python dict but has some additional (extended) features

  • Rdict and RdictIO: can add new items after creation/initialization

  • RdictF and RdictFO, RdictFO2: F(ix) can not add new items after creation/initialization

  • Rdict and RdictF: do not have any key_order (list) nor any extra_key_order (list)

  • RdictIO and RdictFO, RdictFO2: O(rder) do have a key_order (list) plus an extra_key_order (list)

    • RdictIO: I(nsertion) O(rder): keeps track of the order new keys where added

    • RdictFO, RdictFO2: F(ix) O(rder): keeps track of the order of the keys when it was created/initialized

    • all three have the extra_key_order (list):
      • this is a list which can be optionally set with a user defined key order (can also include just a subset of keys)

    • all three can be converted to OrderedDict: keeping their key_order or optionally the extra_key_order

      • example usage to print an ordered json using the method: tojson_keeporder()

      example_rdictordered = RdictFO([
         ('key1', 'value1'),
         ('key2', 'value2'),
         ('key3', RdictIO([
            ('inner_key1', 'innervalue1'),
            ('inner_key2', 'innervalue2'),
         ], False)),
      ], False)
      
      json_dumps = example_rdictordered.tojson_keeporder(indent=3)
      print(json_dumps)

      Output will be:

      {
         "key1": "value1",
         "key2": "value2",
         "key3": {
            "inner_key1": "innervalue1",
            "inner_key2": "innervalue2"
         }
      }
    • RdictFO vs. RdictFO2: RdictFO can change the values. RdictFO2 can after creation not change the values

ReLIST

  • Elist is similar to a normal python list but has some additional (extended) features

  • Rlist: can add new items after creation/initialization

  • RlistF: F(ix) can not add new items after creation/initialization

ReTUPLE

  • Etuple is similar to a normal python tuple but has some additional (extended) features

ReMATRIX

  • Lmatrix is a List-Of-Tuples with some additional (extended) features

  • LmatrixF: F(ix) can not add new items (tuple-rows) after creation/initialization

Code Examples

for code examples see the files in ‘development source` folders: Examples, Tests, SpeedCheck

Projects using ReOBJ

projects which make use of: ReOBJ



ReOBJ is distributed under the terms of the BSD 3-clause license. Consult LICENSE.rst or http://opensource.org/licenses/BSD-3-Clause.

(c) 2014, peter1000 https://github.com/peter1000 All rights reserved.



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