python web 框架tornado-4.4.2 安装测试

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 



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