Install Xcode and select Create a new Xcode project from the Welcome to Xcode screen. App Store downloads Xcode and restart but then it is not functional Attempts: App Store. Additional Tool for Xcode 9.3 downloads and install but then does not work either.
Also Xcode 9.3 after download the install gets blocked because the file is corrupted. Currently Xcode update from developer tools does not work.
Open the Mac App Store and sign out of it. This is the oldest bit of troubleshooting advice you will ever get but it does work often. This document will guide you through installing Python 3.5 and Django on Windows.