Implementing-cryptography-using-python

4 Chapter 1 ■ Introduction to Cryptography and Python
Installing on Ubuntu
If you are running Ubuntu, install Python from the Ubuntu Software Center
using these steps:
1. Open the Ubuntu Software Center.
2. In the search box in the top-right corner of the window, type Python.
3. Select IDLE.
4. Click Install.
Installing on macOS
If you are using macOS, download the .dmg file for your version of macOS and
execute it. When the DMG package opens, do the following:
1. Double-click the Python package file (.mpkg).
2. Click Continue through the Welcome section and click Agree to accept
the license.
3. Select HD Macintosh and click Install.
Installing on Windows
If you are using Windows, download and run the Python installer; it should
have an .msi extension. Then follow these steps:
1. Click Install Now to begin the installation.
2. When the installation completes, click Close.
Notice the mention of upgrading. You can upgrade a package by clearing out
the Search PyPI and Installed Packages search box. This will show you all of
the installed packages. Any package that has an update will have an up arrow
next to it along with the newer version number (see Figure 1.1). You may have
to elevate your privileges.
Installing on a Chromebook
New Windows and Chrome OS computers give you the ability to install Linux.
The Chrome OS, which is becoming more popular, enables you to install a Linux
container that you can interact with but also keeps the rest of the environment
isolated so that you do not have to worry about messing up your system.