Loop IndexError: list index out of range

Question

I have this error

onecheck(sys.argv[1],sys.argv[2],sys.argv[3]) 
IndexError: list index out of range

I try to make loop a python script .

This is code :

with open(file) as k:
     for line in k:
         aa, bb, cc = line.split(':')
         time.sleep(5)
         os.system("python checkfile.py " + cc + " " + aa + " " + bb)

Last line from file is working

Answer 1

Why don't import checkfile directly, don't run via os.system()

If you are looking for a non-blocking way to execute your function in checkfile.py , look at :

• https://docs.python.org/2/library/threading.html
• https://www.tutorialspoint.com/python/python_multithreading.htm

:

import checkfile


with open(file) as k:
    for line in k:
        ltab = line.split(':')
        if len(ltab) > 2:
            time.sleep(5)
            checkfile.my_func(ltab[0], ltab[1], ltab[2])

Answer 2

Issue : You're getting any of the aa , bb , cc empty at:

aa, bb, cc = line.split(':')

Suggestion : In addition to above comments, you can also put your call in length check:

if len(sys.argv)== 4:  # index 0 - 3 
    onecheck(sys.argv[1],sys.argv[2],sys.argv[3])