.. Copyright (C) 2020: ALbert Mietus.

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Static Analyse
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Class Diagrams
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Future (object)
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Create the class diagrams for the python **Future (object)**.

.. note::

   * The term *future* is used multiple times in python. You need the one in ``concurrent``-package!
   * Possible to your surprise, there is no “thread” specific one. Only the *base* version exists, which works for
     threads and processes.
   * See file ``concurrent.futures._base.py``:
     https://github.com/python/cpython/blob/master/Lib/concurrent/futures/_base.py.


TPE
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Create the class diagrams for the python *ThreadPoolExecutor*.

The code can be found online:  https://github.com/python/cpython/blob/master/Lib/concurrent/futures/thread.py.

Other diagrams
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Create all other (static) diagrams that you may find useful.


Questionnaire
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#. Why is the Futures class-diagram so much simpler are the ThreadPoolExecutor one?
#. Which class is more important? Conceptually?

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.. seealso::

   * :ref:`TPE_pyreversed_classes` for my elaboration on the static analyse