I suspect one factor for why Go is so popular within Google is that (due to complex path hacks as mentioned here as well as a network file system) Python startu

I suspect one factor for why Go is so popular within Google is that (due to complex path hacks as mentioned here as well as a network file system) Python startup is so slow. On an app I worked on the unit tests took >10 seconds to boot on each run. Among the languages available to Google developers, Go ends up being the lightest weight, despite there being plenty of other lighter languages available outside. (This is not the place to start an argument about language plurality.)