我的代码有什么问题？ 我该如何处理这个错误？

Question

I am unable to comprehend why I am getting this error from the code below. Thanks for your time!

import sys, os, argparse
from collections import defaultdict
from itertools import izip

parser = argparse.ArgumentParser()
parser.add_argument("--data_loc", type=str, help="folder of training data")
parser.add_argument("--out_loc", type=str, help="location to write files")
parser.add_argument("--n", type=int, default=10000, help="top n chunks get saved")
parser.add_argument("--char", action="store_true", help="char or nah")
args = parser.parse_args()

data_loc = sys.argv[1]  
out_loc = sys.argv[2]

Error message:

Traceback (most recent call last):
  File "make_chunk_vocab.py", line 12, in <module>
    data_loc = sys.argv[1] 

Answer 1

Do you have 2 arguments? Debug and see what sys.argv contains before accessing it.