how to run a function from another file code example

Example: how to import your own function python

#For one particular fuction,
from fileName import function1()
fileName.function1()
#For multiple functions,
from fileName import function1(), function2()
fileName.function1()
fileName.function2()
#For all functions (or to remove the "fileName." prfix),
from fileName import *
function1()
function2()
function3()
#(You don't need to call all of them, I'm just demonstrating)