Read a custom order that the user provides and output a list that will be given to some functions The file should contain one sample name per line

test_order.py

def read_custom_order(order_file):
    """
    Read a custom order that the user provides and output a list that will
    be given to some functions
    The file should contain one sample name per line
    """
    samples_order = []
    with open(order_file, 'r') as f:
        for line in f:
            samples_order.append(line.split(" ")[0])

    print samples_order

read_custom_order("test.txt")