locust库的运行总报错？

脚本：

from locust import HttpLocust,TaskSet,task

class MyBlogs(TaskSet):
    # 访问我的博客首页
    @task(1)
    def get_blog(self):
        # 定义请求头
        header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36"}

        req = self.client.get("/imyalost",  headers=header, verify=False)
        if req.status_code == 200:
            print("success")
        else:
            print("fails")

class websitUser(HttpLocust):
    task_set = MyBlogs
    min_wait = 3000  # 单位为毫秒
    max_wait = 6000  # 单位为毫秒

if __name__ == "__main__":
    import os
    os.system("locust -f demo1.py --host=https://www.cnblogs.com")

报错信息：

[2020-07-14 09:41:32,911] yinqianjun/INFO/locust.main: Starting web monitor at http://*:8089
[2020-07-14 09:41:32,911] yinqianjun/ERROR/stderr: Traceback (most recent call last):
[2020-07-14 09:41:32,911] yinqianjun/ERROR/stderr: File "D:pythonlib unpy.py", line 193, in _run_module_as_main
[2020-07-14 09:41:32,911] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr: "__main__", mod_spec)
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr: File "D:pythonlib unpy.py", line 85, in _run_code
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr: exec(code, run_globals)
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr: File "C:Users52573PycharmProjectszuoyevenvScriptslocust.exe\__main__.py", line 9, in <module>
[2020-07-14 09:41:32,912] yinqianjun/ERROR/stderr: File "c:users52573pycharmprojectszuoyevenvlibsite-packageslocustmain.py", line 559, in main
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr: gevent.signal(signal.SIGTERM, sig_term_handler)
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr:
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr: TypeError
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr: :
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr: 'module' object is not callable
[2020-07-14 09:41:32,913] yinqianjun/ERROR/stderr:

解决方法：刚学网上照猫画虎，尚未解决·······