Oh, no question. That's part of why Mercurial is so close to Git in terms of speed, despite Git being hyper-optimized C and Mercurial being Python. But so far,

Oh, no question. That's part of why Mercurial is so close to Git in terms of speed, despite Git being hyper-optimized C and Mercurial being Python. But so far, this has always come up when I'm doing one-off, or nearly one-off, stuff. Getting CPython extensions whipped up is more effort, and less fun, than writing the solution in Go.