命令行中的快速python脚本与在IDLE shell中启动

Question

I noticed several times that a simple python script (with some straightforward algebraic computation in a loop) runs considerably faster (up to a factor 6) when launched on a shell command line as compared to a run via IDLE's shell. There is nothing fancy going on in the script. I only print a loop variable to visually follow progress in the loop.

Surely just this print statement cannot be the reason for the speed loss in IDLE, or can it ?

Can someone explain me why this is ?

Answer 1

The Tkinter text widget is slow, and IDLE uses this to print text to screen.

See this question.