MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors

python3.6开启多协程报错

代码

import gevent
from gevent import monkey
monkey.patch_all()  # 把程序变成协作式运行,---异步
from gevent.queue import Queue
import time, requests
from bs4 import BeautifulSoup

报错信息

MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors, including RecursionError on Python 3.6. It may also silently lead to incorrect behaviour on Python 3.7. Please monkey-patch earlier. See https://github.com/gevent/gevent/issues/1016. Modules that had direct imports (NOT patched): ['_shaded_thriftpy.transport._ssl (S:\\development_tools\\development_python\\pycharm\\pycharm\\PyCharm 2019.3.2\\plugins\\python\\helpers\\third_party\\thriftpy\\_shaded_thriftpy\\transport\\_ssl.py)']. monkey.patch_all()  # 把程序变成协作式运行,---异步

看过很多帖子，多数就是把

import gevent
from gevent import monkey
monkey.patch_all()

放在最前面，如上图代码，我已经放在最前面了，但是还是会报相同的错误。下面是环境安装的gevent版本

换了gevent低版本

还是提示相同错误，排除gevent版本问题。
之前用的是pycharm 分块代码执行功能，怀疑分块代码运行出错
删除之前写的python文件，新建一个，代码如下：再次运行
新建文件代码：

import gevent
from gevent import monkey
monkey.patch_all()  # 把程序变成协作式运行,---异步
from gevent.queue import Queue
import time, requests
from bs4 import BeautifulSoup

执行结果：

S:\project_environment\environment_python\python-3.6.6\python.exe M:/program_all/pro_python/python_course/crawling/CrawlingVideoTop100.py
Traceback (most recent call last):File "M:/program_all/pro_python/python_course/crawling/CrawlingVideoTop100.py", line 82, in <module>work.put_nowait(i)
TypeError: put_nowait() takes exactly one argument (0 given)Process finished with exit code 1

大吉大利，终于不再出现上面的错误了，也算问题解决了。
总结：
解决方案一：

import gevent
from gevent import monkey
monkey.patch_all()

上面三行代码写在所有引入语句最前面。

解决方案二：
删除源文件新建新文件。

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MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors

python3.6开启多协程报错

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