Gain insights into Python 3's new syntax, data types, strings, bytes, and iterators through interactive coding samples. Upgrade your Python skills with hands-on, real-time code modifications.

Are you ready to take the plunge into Python 3? You might be just getting started with Python or you might be someone who understands Python2 and now wants to upgrade to Python 3. This course is designed to help you achieve your goal faster.

Learn about the new syntax, data types, strings, bytes, iterators and much more with interactive coding samples. Execute code using interactive playgrounds, modify the code to see your changes in action and get yourself upgraded to the newest version of Python that is here to stay for a while.

This course is derived from Dive into Python 3 by Mark Pilgrim. See License for more details.
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Python 3: An interactive deep dive

To start packaging your Python software, you need to get your files and directories in order. The `httplib2` directory looks like this:

①	Make a root directory to hold everything. Give it the same name as your Python module.

②	To accomodate Windows users, your “read me” file should include a `.txt` extension, and it should use Windows-style carriage returns. Just because you use a fancy text editor that runs from the command line and includes its own macro language, that doesn’t mean you need to make life difficult for your users. (Your users use Notepad. Sad but true.) Even if you’re on Linux or Mac OS X, your fancy text editor undoubtedly has an option to save files with Windows-style carriage returns.

③	Your Distutils setup script should be named `setup.py` unless you have a good reason not to. You do not have a good reason not to.

④	If your Python software is a single `.py` file, you should put it in the root directory along with your “read me” file and your setup script. But `httplib2` is not a single `.py` file; it’s a [multi-file module](https://www.educative.io/courses/python-3-an-interactive-deep-dive/a-short-digression-into-multi-file-modules/). But that’s OK! Just put the `httplib2` directory in the root directory, so you have an `__init__.py` file within an `httplib2/` directory within the `httplib2/` root directory. That’s not a problem; in fact, it will simplify your packaging process.

The `chardet` directory looks slightly different. Like `httplib2`, it’s a multi-file module, so there’s a `chardet/` directory within the `chardet/` root directory. In addition to the `README.txt` file, `chardet` has HTML-formatted documentation in the `docs/` directory. The `docs/` directory contains several `.html` and `.css` files and an `images/` subdirectory, which contains several `.png` and `.gif` files. (This will be important later.) Also, in keeping with the convention for (L)GPL-licensed software, it has a separate file called `COPYING.txt` which contains the complete text of the LGPL.

Your First Python Program

Native Datatypes

Comprehensions

Strings

Regular Expressions

Closures & Generators

Classes & Iterators

Advanced Iterators

Unit Testing

Refactoring

Files

XML

Serializing Python Objects

HTTP Web Services

Case Study: Porting chardet to Python 3

Packaging Python Libraries

Appendix : Where To Go From Here

Directory Structure