python 成为啥报错？

Question

from scrapy.cmdline import execute
import sys

if __name__ == '__main__':
    if sys.argv[1] == "xiaomiquan":
        execute("scrapy crawl %s" % sys.argv[1].split())
    elif sys.argv[1] == "reportapp":
        execute("scrapy crawl %s" % sys.argv[1].split())
    elif sys.argv[1] == "baidusearch":
        execute("scrapy crawl %s" % sys.argv[1].split())

Traceback (most recent call last):
  File "main.py", line 6, in <module>
    execute("scrapy crawl %s" % sys.argv[1].split())
  File "/home/shenjianlin/.local/lib/python3.4/site-packages/scrapy/cmdline.py", line 130, in execute
    cmdname = _pop_command_name(argv)
  File "/home/shenjianlin/.local/lib/python3.4/site-packages/scrapy/cmdline.py", line 58, in _pop_command_name
    del argv[i]
TypeError: 'str' object doesn't support item deletion

Answer 1

你这是什么花式操作?
脚本运行爬虫请使用官方提供的api,不要去魔改cmdline.
https://doc.scrapy.org/en/lat...

Answer 2

错误提示不是很明确了么。str对象不支持元素删除，你传的sys.argv[1]是个str，这样的用法下scrapy里会有一步删除的操作。按楼上说的去看文档用api吧，别cmd了