The 10 minutes was the precompilation time so only happened once. It was mostly Plots that took the time - HTTP and CSV were quite quick. I probably should have mentioned that the machine was Windows 10, 2.9 MHz but with only 4 gigs of memory. It wasn't purchased with programming in mind. Maybe some extra ram would help but my main point is that I'm not abandoning Python for Julia because sometimes a quick Python script is more convenient. If I had been looping over a number of countries maybe Julia would have been better.