The Python Standard Library is available with every Python installation. It contains a huge number of very useful modules. It is important that you become familiar with the Python Standard Library since most of your problems can be solved more easily and quickly if you are familiar with this library of modules.
We will now explore the Python standard library and some of the most commonly used modules in this library. The complete documentation for the Python Standard Library is available with the standard documentation that comes with your Python installation. The "Library Reference" section in the Python Documentation will give you the complete details of the modules available.