I have a script ( script1.py
) of the following form:
#!/bin/python
import sys
def main():
print("number of command line options: {numberOfOptions}".format(numberOfOptions = len(sys.argv)))
print("list object of all command line options: {listOfOptions}".format(listOfOptions = sys.argv))
for i in range(0, len(sys.argv)):
print("option {i}: {option}".format(i = i, option = sys.argv[i]))
if __name__ == '__main__':
main()
I want to import this script in another script ( script2.py
) and pass to it some arguments. The script script2.py
could look something like this:
import script1
listOfOptions = ['option1', 'option2']
#script1.main(listOfOptions) insert magic here
How could I pass the arguments defined in script2.py
to the main function of script1.py
as though they were command line options?
So, for example, would it be Pythonic to do something such as the following?:
import script1
import sys
sys.argv = ['option1', 'option2']
script1.main()
For reusability of your code, it is practical to keep the acting function separated from command line parsing
scrmodule.py
def fun(a, b):
# possibly do something here
return a + b
def main():
#process command line argumens
a = 1 #will be read from command line
b = 2 #will be read from command line
# call fun()
res = fun(a, b)
print "a", a
print "b", b
print "result is", res
if __name__ == "__main__":
main()
from scrmodule import fun
print "1 + 2 = ", fun(1, 2)
# script1.py
#!/bin/python
import sys
#main function is expecting argument from test_passing_arg_to_module.py code.
def main(my_passing_arg):
print("number of command line options: {numberOfOptions}".format(numberOfOptions = len(sys.argv)))
print("list object of all command line options: {listOfOptions}".format(listOfOptions = my_passing_arg))
print(my_passing_arg)
if __name__ == '__main__':
main()
#test_passing_arg_to_module.py
import script1
my_passing_arg="Hello world"
#calling main() function from script1.py code.
#pass my_passinga_arg variable to main(my_passing_arg) function in scritp1.py.
script1.main(my_passing_arg)
##################
# Execute script
# $python3.7 test_passing_arg_to_module.py
# Results.
# number of command line options: 1
# list object of all command line options: Hello world
# Hello world
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