Summaries/Python/Jupyter.md

title	updated	created
Jupyter	2021-12-20 09:04:10Z	2021-05-04 14:58:11Z

Jupyter

pip install jupyterthemes

jt -l     # list available themes
jupyter-kernelspec list
jupyter --paths  # will list all of the possible locations for everything it uses to run: kernels, extensions, pidfiles, etc.

jupyter notebook --ip=0.0.0.0 --port=8080 --no-browser
jupyter lab --ip=0.0.0.0 --port=8080  --no-browser

export PYSPARK_DRIVER_PYTHON="/home/john/environments/notebook/bin/ipython"

# Import findspark when not pip install pyspark
import findspark

# Initialize and provide path
findspark.init("/home/john/opt/spark")
# or let spark find it
findspark.init()

https://towardsdatascience.com/introducing-jupytext-9234fdff6c57 https://github.com/mwouts/jupytext

Command	Description
%quickref	Display the IPython Quick Reference Card
%magic	Display detailed documentation for all of the available magic commands
%debug	Enter the interactive debugger at the bottom of the last exception traceback
%hist	Print command input (and optionally output) history
%pdb	Automatically enter debugger after any exception
%paste	Execute preformatted Python code from clipboard
%cpaste	Open a special prompt for manually pasting Python code to be executed
%reset	Delete all variables/names defined in interactive namespace
%page	OBJECT Pretty-print the object and display it through a pager
%run script.py	Run a Python script inside IPython
%prun	statement Execute statement with cProfile and report the profiler output
%time	statement Report the execution time of a single statement
%timeit	statement Run a statement multiple times to compute an ensemble average execution time; useful for timing code with very short execution time
%who, %who_ls, %whos	Display variables defined in interactive namespace, with varying levels of information/verbosity
%xdel	variable Delete a variable and attempt to clear any references to the object in the IPython internals
%matplotlib inline	Matplotlib Integration
%load_ext lab_black	Code formatting during save
%matplotlib widget	plot mathplot
%load_ext tensorboard	load tensorflow board
%matplotlib widget	Load Matplotlib