syntax error when trying to run main() in python 3.7

[PorterG2003]

def mergeSort(lst):
    lst = [[i] for i in lst]
    while len(lst) > 1:
        for i in lst:
            c = 0
            if lst.index(i) == len(lst)-1:
                k = lst[lst.index(i)-1]
            else:
                k = lst[lst.index(i)+1]
            while len(k) > 0:
                if c == len(i):
                    i.append(k.pop(0))
                elif i[c] > k[0]:
                    i.insert(c, k.pop(0))
                    c += 1
                else:
                    c += 1

            lst.remove(k)
    return lst

def main():
    print()
    print(mergeSort([random.randint(-1000,1000) for i in range(10000)])

main()

Anyway to fix this?

[79wjd]

At the very bottom, add:

if __name__ == '__main__':

    sys.exit(main())

instead of main()

 

And as the very first line, add 

import sys

[PorterG2003]

4 hours ago, 79wjd said:

At the very bottom, add:

if __name__ == '__main__':

    sys.exit(main())

instead of main()

 

And as the very first line, add 

import sys

that gave me an error for the colon after the if statement then one for syntax of sys.exit(main())

[79wjd]

6 hours ago, PorterG2003 said:

that gave me an error for the colon after the if statement then one for syntax of sys.exit(main())

What's the error? Also try a new file with something simple like:

 

import sys

 

def main():

    print("hello")

 

if __name__ == '__main__':

    sys.exit(main ())

[riklaunim]

It's a syntax error so adding that "if" won't solve it. There is one ) missing:

 

print(mergeSort([random.randint(-1000,1000) for i in range(10000)])

[Yamoto42]

On 8/9/2018 at 7:04 AM, 79wjd said:

What's the error? Also try a new file with something simple like:

 

import sys

 

def main():

    print("hello")

 

if __name__ == '__main__':

    sys.exit(main ())

While good practice, it's not the problem.  That does nothing to make it run, it only makes it NOT execute if the module is imported as opposed to being the initial entry point....hence good practice.

@riklaunim got it with the missing closing parenthesis.