.. _session_1_04:

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Session 4: Dictionaries, Sets, and File Handling
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Dictionaries, Sets, and File Handling

Pre-class prep
==============

Read:
-----

:ref:`dicts_and_sets`

:ref:`files`


Recommended Reading:
---------------------

* Think Python: Chapters 11, 13, 14

* Dive Into Python3: Sections 2.6, 2.7, 4, 11

http://www.diveintopython3.net/native-datatypes.html#dictionaries


In-class Activities
===================

 * Review last sessions labs:
   - slicing
   - string formatting

 * Review  looping: ``for`` and ``while``

    - ``break`` and ``continue``

    - ``else``

 * Review mailroom

Exercises:
----------

 * :ref:`exercise_dict_lab`

 * :ref:`exercise_file_lab`

 * Update mailroom with dicts and files:  :ref:`exercise_mailroom_part2_dict_files`

 * :ref:`exercise_trigrams`


Post-class Activities
=====================

Finish the exercises

Look at the next session for reading, etc:

:ref:`session_1_05`