循环遍历sys.args

时间:2016-01-14 14:23:02

标签: python linux for-loop command-line-arguments

尝试循环sys.args时,我收到以下错误:

Traceback (most recent call last):
  File "./autoCrosRef.py", line 59, in <module>
    cleanFile(inputArgs[i])
TypeError: list indices must be integers, not str

这就是我调用程序的方式:

./autoCrosRef.py file.txt

这是我用来尝试循环的代码:

import sys
# ------
#  MAIN
# ------
inputArgs = sys.argv

print len(inputArgs)

for i in inputArgs[1:]:

    cleanFile(inputArgs[i])

我的打印命令显示我在cmd处传递2个args但是它一直出错,我调用错了还是我的循环错了?

1 个答案:

答案 0 :(得分:4)

i inputArgs数组中有一个项目 - 而不是索引。你可以做

for i in range(1, len(inputArgs)):
    # i is a number, from 1 to len(inputArgs)-1
    cleanFile(inputArgs[i])

或(这是首选)

for i in inputArgs[1:]:
    # i is an item from inputArgs. If inputArgs=['foo', 'bar', 'baz']
    # then i is first 'bar' then 'baz'.
    cleanFile(i)