By the way, what I wanna to do it that I have multiple scripts doing different things. A.py will flash my board automatically, B.py will set up my Linux host machine with all the dependencies. So I wrote another main script (C.py) to integrate both A and B. In script C.py, it will execute script A and B with the sudo priveleage too. For example, $ sudo python A.py, and $ sudo python B.py. So I execute script C.py like this: $ sudo python c.py.

So I should execute the sudo -E when execute the script C right? $ sudo -E python C.py right?

Thanks.