To add one more note of clarification: when you click on the link for ReportLab 2.7 for Python 2.7 32-bit, you will get a long list of options to download. The link I used was called reportlab-2.7.win32-py2.7.exe. When you click on it, it will prompt you to save. Once you save it, you'll double-click it to launch the installer. Once you've installed it, the script will work.