What are some alternatives?
When comparing Microsoft Visual Studio and Python, you can also consider the following products
Xcode - Xcode 4 is the new version of Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
Haskell - An advanced purely-functional programming language
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.
Rust - A safe, concurrent, practical language