python web 框架tornado-4.4.2 安装测试

最新推荐文章于 2024-08-02 10:15:00 发布

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最新推荐文章于 2024-08-02 10:15:00 发布

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本文链接：https://blog.youkuaiyun.com/cszskkk1/article/details/70598631

本文详细记录了Tornado Web框架的安装过程及遇到的问题解决办法，并最终成功运行了一个简单的Hello World示例。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

下载tornado-4.4.2
cd tornado-4.4.2
python setup.py build
sudo python setup.py install
OK 编译安装完成

运行一个hellwrold 试试
import tornado.ioloop
import tornado.web

class MainHandler(tornado.web.RequestHandler):
def get(self):
self.write("Hello, world")

application = tornado.web.Application([
(r"/", MainHandler),
])

if __name__ == "__main__":
application.listen(8888)
tornado.ioloop.IOLoop.instance().start()

python test.py 报错内容如下

File "test.py", line 3, in <module>
import tornado.web
File "/usr/local/lib/python2.7/dist-packages/tornado/web.py", line 84, in <module>
from tornado import gen
File "/usr/local/lib/python2.7/dist-packages/tornado/gen.py", line 98, in <module>
from singledispatch import singledispatch # backport
然后少一些包安装吧：

sudo apt-get install python-pycurl
apt-get install python-pip
python -m pip install singledispatch backports_abc
然后在运行一次试试：
python test.py 又报错了……
root@ubuntu:/home/lfj/python# python test.py
Traceback (most recent call last):
File "test.py", line 3, in <module>
import tornado.web
File "/usr/local/lib/python2.7/dist-packages/tornado/web.py", line 86, in <module>
from tornado import iostream
File "/usr/local/lib/python2.7/dist-packages/tornado/iostream.py", line 40, in <module>
from tornado.netutil import ssl_wrap_socket, ssl_match_hostname, SSLCertificateError, _client_ssl_defaults, _server_ssl_defaults
File "/usr/local/lib/python2.7/dist-packages/tornado/netutil.py", line 39, in <module>
import certifi
ImportError: No module named certifi
少certifi模块继续安装

pip install certifi

再次运行 OK

netstat -nlp 查看8888端口成功监听