Appendix A. Download Instructions

Download Python 3


  1. Go to (the downloads page detects your operating system and suggests the Windows version).

  2. Click Download Python 3.4.3 (or the newest version of Python 3—it may have been updated since the time of this book’s publication).

  3. Click “Windows x86 MSI installer” to save or run the MSI installer.

  4. Double-click the downloaded python-3.4.3.msi installer to open the Python Installer.

  5. Select “Install for all users” or “Install just for me” and then click Next.

  6. Use the default destination directory (C:\Python34\), and click Next.

  7. For all of the remaining screens, click Next without changing the default values.

Python should now be installed.

Once Python is installed:

  1. Click Start.

  2. Click Control Panel.

  3. Click System and Security.

  4. Click System.

  5. Click “Advanced system settings.”

  6. Click the Advanced tab.

  7. Click the Environment Variables option.

  8. Under the “System variables” option, scroll down to and click on the Path variable.

  9. Click Edit.

  10. In the “Variable value” field, check to make sure C:\Python34\ is included in the list.

    If it is not in the list, scroll to the end of the list and type “;C:\Python34\” at the end of the list to add the path to the list (the semicolon is used to separate individual paths).

  11. Click OK to save your changes to the Path system variable.

  12. Click OK to exit the Environment Variables window.

  13. Click OK to exit the System Properties window.

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