.. _development:
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*****************
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Development Tools
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*****************
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The modules described in this chapter help you write software. For example, the
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:mod:`pydoc` module takes a module and generates documentation based on the
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module's contents. The :mod:`doctest` and :mod:`unittest` modules contains
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frameworks for writing unit tests that automatically exercise code and verify
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that the expected output is produced. :program:`2to3` can translate Python 2.x
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source code into valid Python 3.x code.
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The list of modules described in this chapter is:
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.. toctree::
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typing.rst
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pydoc.rst
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doctest.rst
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unittest.rst
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unittest.mock.rst
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unittest.mock-examples.rst
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2to3.rst
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test.rst
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See also the Python development mode: the :option:`-X` ``dev`` option and
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:envvar:`PYTHONDEVMODE` environment variable.
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