mac configuration jupyter notebook

Configure the startup path of the notebook

First find the path configuration file path, enter the following sentence in the terminal

jupyter notebook --generate-config

insert image description here

Open the configuration path file, by looking for 'c.NotebookApp.', and enter your own path

open /Users/hb23170/.jupyter/jupyter_notebook_config.py

insert image description here

Code auto-completion extension

First install the extension library

pip install jupyter_contrib_nbextensions

insert image description here

Enter jupyter contrib nbextensions install --user in the terminal
Install pip install jupyter_nbextensions_configurator this library
After the installation is complete, restart Jupyter notebook

Please add a picture description

theme extension

Installation: pip install jupyterthemes
Enter jt -l in the terminal
set your own theme

- #选择一种喜欢的主题 ，参数有：-t 主题 -f(字体) -fs(字体大小) -cellw(占屏比或宽度) -ofs(输出段的字号) -T(显示工具栏) -T(显示自己主机名)
jt -t
如：jt -t onedork -f fira -fs 13 -cellw 90% -ofs 11 -dfs 11 -T -T
#恢复默认主题
jt -r

hot key

Jupyter has two modes, command mode and edit mode

When the side of the current cell is blue, it means that it is in command mode at this time , press Enter to switch to edit mode
When the side of the current cell is green, it means that it is in edit mode , press Esc to switch to command mode

Command mode shortcut key:
　　double-click D: delete the current cell
　　Shift-Enter: run the current cell and jump to the next cell
　　Alt-Enter: run the current cell and create a new cell below
　　Tab: code completion A: create a new cell 　　B
　　above :
Create a new cell below
　　L: Add a line number to the code of the current cell
　　Shift-M: Merge the selected cell or merge the current cell and the cell below
　　Y: Convert the current cell content into code form
　　M: Convert the current cell content into markdown form
　　H: Display the shortcut key help
　　F: Find and replace
　　P: Open the command panel
　　Ctrl-Enter: Run the current cell
　　1-6: Set the current cell content as the title 1~6 format
　　Shift+Up and down keys: Press and hold Shift to perform up and down key operations Check multiple cells
　　L: Display the row number
　　Ctrl + Enter: Execute the cell code
Shift + Enter: Execute the cell code and move to the next cell
Alt + Enter: Execute the cell code, create a new one and move to the next cell

plt drawing display Chinese
import matplotlib.pyplot as plt
plt.rc('font', family='SimHei', size=13)

_: access last output
__: access last output
_X: access history X lines of output
_iX: access history X lines of input, the lowercase letter "i" stands for "in".

magic command

%quickref show IPython quick reference
%magic Show detailed documentation for all magic commands***
%debug enters the interactive debugger from the bottom of the latest exception trace
%run script.py Execute script.py
%prun statement performs line-by-line performance analysis of statement through cProfile
%time statement test execution time of statement
%timeit statement tests the execution time of the statement multiple times and calculates the average
%who, %who_ls, %whos display variables defined in the interactive namespace, variable level of information/redundancy
%xdel variable deletes variable and attempts to clear all references to its object in IPython
!cmd Execute cmd in the system shell
output=!cmd args execute cmd and assign
%bookmark Use IPython's directory bookmarking system
%cd direcrory switch working directory
%pwd returns the current working directory (as a string)
%env returns the current system variables (as a dictionary)