correct the way of finding Python's scripts folder (#366)
correct the way of finding Python's scripts folder (#366)

* correct the way of finding Python's scripts folder

* up move import & remove the redundant argument

* sort imports & fix unbound variable as 'sys.executable' is not referenced now

* Style fix

Co-authored-by: Takafumi Arakaki <9a75a0f73875989e828a7f9332b612e07ae4fee6@gmail.com>
JuliaPy/pyjulia,JuliaLang/pyjulia,JuliaPy/pyjulia