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3. Introduction to Python
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.. toctree::
   :maxdepth: 1

   Where we will soon be <where_we_will_go.rst>
   Data types and operators <data_types_and_operators.ipynb>
   Conditionals <conditionals.ipynb>
   Lists and tuples <lists_tuples.ipynb>
   Iteration <iteration.ipynb>
   Introduction to functions <intro_to_functions.ipynb>
   Methods <methods.ipynb>
   Dictionaries <dictionaries.ipynb>
   Packages and modules <packages_and_modules.ipynb>
   Exceptions and error handling <exceptions_and_error_handling.ipynb>
   File I/O <file_io.ipynb>