配置jupyter notebook网页浏览

上一篇博文已经介绍安装了Anaconda3：https://www.cnblogs.com/hello-wei/p/10233192.html

jupyter notebook

[I 11:33:11.578 NotebookApp] JupyterLab extension loaded from /home/python/anaconda3/lib/python3.7/site-packages/jupyterlab
[I 11:33:11.579 NotebookApp] JupyterLab application directory is /home/python/anaconda3/share/jupyter/lab
[I 11:33:11.581 NotebookApp] 启动notebooks 在本地路径: /home/python/jupyter_notebook
[I 11:33:11.581 NotebookApp] 本程序运行在: http://localhost:8888/

一直进不去进不去网页

NotebookApp] No web browser found: could not locate runnable browser.

解决方法：

1.设置密码获得秘钥

python@master2 ~]$ ipython
Python 3.7.1 (default, Dec 14 2018, 19:28:38)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.2.0 -- An enhanced Interactive Python. Type '?' for help.

In []: from IPython.lib import passwd                                                                                                                                 

In []: passwd()
Enter password:
Verify password:
Out[]: 'sha1:44b9b4ac9989:b819a8dca76aa86c2e1676ec86c8f59fb4e51802'

2.生成配置文件

[python@master2 ~]$ jupyter notebook --generate-config
Writing default config to: /home/python/.jupyter/jupyter_notebook_config.py

3.修改配置文件内容

c.NotebookApp.ip = '192.168.1.250'
c.NotebookApp.allow_root = True
c.NotebookApp.open_browser = False
c.NotebookApp.port = 8888
c.NotebookApp.password = 'sha1:...' #输入上面加密后得到的密文
c.ContentsManager.root_dir = '/home/python/jupyter_notebook'

4.重新启动：

[python@master2 ~]$ jupyter notebook
[I 11:33:11.578 NotebookApp] JupyterLab extension loaded from /home/python/anaconda3/lib/python3.7/site-packages/jupyterlab
[I 11:33:11.579 NotebookApp] JupyterLab application directory is /home/python/anaconda3/share/jupyter/lab
[I 11:33:11.581 NotebookApp] 启动notebooks 在本地路径: /home/python/jupyter_notebook
[I 11:33:11.581 NotebookApp] 本程序运行在: http://192.168.1.250:8888/
[I 11:33:11.581 NotebookApp] 使用control-c停止此服务器并关闭所有内核(两次跳过确认).
[I 11:33:23.082 NotebookApp] 302 GET / (192.168.1.1) 1.61ms

输入网址：http://192.168.1.250:8888/

密码：****

进入页面如下显示：

然后就可以测试：

import _thread
from time import sleep
import datetime

loops=[4,2]

def date_time_str():
   return datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
def loop(n_loop,n_sec,lock):
   print('线程(',n_loop,') 开始执行:',date_time_str(),',先休眠(',n_sec,')秒')
   sleep(n_sec)
   print('线程(',n_loop,')休眠结束，结束于:',date_time_str())
   lock.release()
def main():
   print('---所有线程开始执行...')
   locks=[]
   n_loops=range(len(loops))
   for i in n_loops:
       lock=_thread.allocate_lock()
       lock.acquire()
       locks.append(lock)
   for i in n_loops:
       _thread.start_new_thread(loop,(i,loops[i],locks[i]))
   for i in n_loops:
       while locks[i].locked():
         pass
   print('---所有线程执行结束:',date_time_str())

if __name__=='__main__':
    main()

可以保存代码块，对应的代码在：/home/python/jupyter_notebook 这个路径下。