~$). Missing Header/Libraries Some packages (f. The Windows API, informally WinAPI, is Microsoft's core set of application programming interfaces (APIs) available in the Microsoft Windows operating systems. 10 Best Python IDEs. Made for: Developers looking for a Java friendly platform for developing games and apps. Kivy - Open source Python library for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. Applications need to obtain access permission for an API before invoking it, and the download of the SDK is associated with applications. Cross building¶. I downloaded the latest source file using SVN on 2009/03/30.