Tools Jupyter Issues

[junxnone]

Reference

• ImportError: cannot import name 'create_prompt_application'
• OpenCV | imshow()弹出窗口图片未响应；无法显示图片

Issues 1 jupyter 启动没问题，但是当打开页面运行时会报如下错误：

Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/xxx/.local/lib/python3.6/site-packages/ipykernel_launcher.py", line 15, in <module>
    from ipykernel import kernelapp as app
  File "/home/xxx/.local/lib/python3.6/site-packages/ipykernel/__init__.py", line 2, in <module>
    from .connect import *
  File "/home/xxx/.local/lib/python3.6/site-packages/ipykernel/connect.py", line 13, in <module>
    from IPython.core.profiledir import ProfileDir
  File "/usr/lib/python3/dist-packages/IPython/__init__.py", line 49, in <module>
    from .terminal.embed import embed
  File "/usr/lib/python3/dist-packages/IPython/terminal/embed.py", line 18, in <module>
    from IPython.terminal.interactiveshell import TerminalInteractiveShell
  File "/usr/lib/python3/dist-packages/IPython/terminal/interactiveshell.py", line 20, in <module>
    from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output
ImportError: cannot import name 'create_prompt_application'

Solution

sudo -E pip3 install  prompt-toolkit==1.0.16

Issue 2 安装tensorflow docker 后 jupyter 只支持python2

• pull tensorflow docker py3

Issue 3 jupyter tables 会被居中显示

在之前执行html table style 设置

%%html
<style>
table {float:left}
</style>

Google Colab not support html tags

Issue 4 其他文件的 module 修改了但是执行时未更改

• 需要重启并执行全部(类似于之前的 module 已经载入在内存中了)

Issue 5 cv2.imshow() not working with Jupyter

imshow后需要添加如下内容，且 必须按任意按键退出不能点 X 退出。

cv2.waitKey()
cv2.destroyAllWindows()

[junxnone]

junxnone/linuxwiki#143