.. _sphx_glr_auto_examples_builtin_modules:

.. _builtin:

2. builtin modules
-------------------

This chapter describes some useful built-in modules/packages in python.


.. raw:: html

    <div class="sphx-glr-thumbnails">


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="When python is installed, several modules/packages are pre-installed in it. These modules provi...">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__os_thumb.png
    :alt: 2.1 os

  :ref:`sphx_glr_auto_examples_builtin_modules__os.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.1 os</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.2 sys">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__sys_thumb.png
    :alt: 2.2 sys

  :ref:`sphx_glr_auto_examples_builtin_modules__sys.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.2 sys</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.3 time and dateandtime">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__time_thumb.png
    :alt: 2.3 time and dateandtime

  :ref:`sphx_glr_auto_examples_builtin_modules__time.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.3 time and dateandtime</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.4 copy">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__copy_thumb.png
    :alt: 2.4 copy

  :ref:`sphx_glr_auto_examples_builtin_modules__copy.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.4 copy</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.5 collections">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__collections_thumb.png
    :alt: 2.5 collections

  :ref:`sphx_glr_auto_examples_builtin_modules__collections.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.5 collections</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.6 types and typing">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__types_typing_thumb.png
    :alt: 2.6 types and typing

  :ref:`sphx_glr_auto_examples_builtin_modules__types_typing.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.6 types and typing</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.7 math">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__math_thumb.png
    :alt: 2.7 math

  :ref:`sphx_glr_auto_examples_builtin_modules__math.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.7 math</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.8 pathlib">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__pathlib_thumb.png
    :alt: 2.8 pathlib

  :ref:`sphx_glr_auto_examples_builtin_modules__pathlib.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.8 pathlib</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="3.9 warnings">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__warnings_thumb.png
    :alt: 3.9 warnings

  :ref:`sphx_glr_auto_examples_builtin_modules__warnings.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">3.9 warnings</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.10 random">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__random_module_thumb.png
    :alt: 2.10 random

  :ref:`sphx_glr_auto_examples_builtin_modules__random_module.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.10 random</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.11 csv">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__csv_thumb.png
    :alt: 2.11 csv

  :ref:`sphx_glr_auto_examples_builtin_modules__csv.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.11 csv</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="2.12 itertools">

.. only:: html

  .. image:: /auto_examples/builtin_modules/images/thumb/sphx_glr__itertools_thumb.png
    :alt: 2.12 itertools

  :ref:`sphx_glr_auto_examples_builtin_modules__itertools.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">2.12 itertools</div>
    </div>


.. raw:: html

    </div>


.. toctree::
   :hidden:

   /auto_examples/builtin_modules/_os
   /auto_examples/builtin_modules/_sys
   /auto_examples/builtin_modules/_time
   /auto_examples/builtin_modules/_copy
   /auto_examples/builtin_modules/_collections
   /auto_examples/builtin_modules/_types_typing
   /auto_examples/builtin_modules/_math
   /auto_examples/builtin_modules/_pathlib
   /auto_examples/builtin_modules/_warnings
   /auto_examples/builtin_modules/_random_module
   /auto_examples/builtin_modules/_csv
   /auto_examples/builtin_modules/_itertools