Jupyter Notebook Tricks

Shortcuts

Get multiple cursors by pressing ctrl and clicking on the required places Just like you select different files with ctrl key.

# list available python magics
%lsmagic

# print all string variables

%who str

# Suppress output of last line

a="This is the Output -_- "

a;

# See the source of anything with ? and ??

a?

round??

pip?

%pip?

%pip??

# can execute python code from .py and .ipynb files

%run 

# usage

%run ./hello.ipynb

# Load any file,code also images in binary form

%load ./hello.ipynb

# Timing, measure time spent 

%%time

import time

print("Hi"*10)

# see timing by each functions lprun and mprun is broker in many not working in many 

%prun, %lprun, %mprun

%prun

import time

def red():

    time.sleep(1)

    print("I'm Red")

    

def green():

    time.sleep(0.5)

    print("I'm Green")    

    

    

def speed():

    red()

    green()

speed()

#Convert your Notebook to Prompt less Notebook

%%bash

jupyter nbconvert --to blogger_html /home/abhishek/Desktop/GLR2020/GLR2020_home.ipynb --no-prompt

%%bash

echo "hellow from $BASH"

from IPython.display import Image

Image(filename='fig/img_4926.jpg')

%load_ext sympyprinting

import sympy as sym

from sympy import *

x, y, z = sym.symbols("x y z")

eq = ((x+y)**3 * (x+4+z))

eq

(𝑥+𝑦)3(𝑥+𝑧+4)

expand(eq)

𝑥4+3𝑥3𝑦+𝑥3𝑧+4𝑥3+3𝑥2𝑦2+3𝑥2𝑦𝑧+12𝑥2𝑦+𝑥𝑦3+3𝑥𝑦2𝑧+12𝑥𝑦2+𝑦3𝑧+4

from IPython.display import YouTubeVideo

YouTubeVideo('iwVvqwLDsJo')