Python错误（列表索引超出范围）[重复]

Question

我对以下 Python 代码部分有疑问：

def main():
file_name = sys.argv[1]
file = open(file_name, 'r')
l = []
for line in file:
    if (len(l) == 4):
        res = valid_data(l)
        if (res == False):
            print("The Data is InValid")
        else:
            print_data(l)
        l = []
    else:
        l.append(line.strip())
if (l != []):
    res = valid_data(l)
    if (res == False):
        print("The Data is InValid")
    else:
        print_data(l)
main()

具体报错如下：

 Traceback (most recent call last):


File "C:\Users\Desktop\44.py", line 194, in <module>
main()



 File "C:\Users\Desktop\44.py", line 173, in main
information = sys.argv[1]
IndexError: list index out of range

运行脚本时，sys.argv 可能需要命令行参数，但我不确定问题可能是什么！

Answer 1

sys.argv[1] 是第一个命令行参数。像这样调用脚本

python3 myscript.py myargument