Case Study: Turbocharging Python with Command-Line Tools This is really hard to understand and follow along. #1

Case Study: Turbocharging Python with Command-Line Tools
This is really hard to understand and follow along.
Example:

• I see only expmean_jit function but no expmean(rea)
• Running NO JIT took: 0.0007 sec while Running with JIT took: 0.2180 sec
• I thought running with JIT would be faster than without JIT.