jupyter_notebook.md

Jupyter Notebook commands

Open Jupyter Notebook

jupyter-notebook

Open python

python

Ipython commands

• Open ipython

ipython

• Show complete box

a<Tab>

• Shows info about variable, docstrings if it is function/class

a?

• Shows source code

a??

• Normal git command inside Ipython. Most of the Unix commands can be used this way

!git
!ls -la

• Using debug

debug #just after exceptation
run -d foo.py #invoke debugger before excuting any code

• Profiling blocks of code

prun -l -s foo()

• Import code

import foo_lib

• Load code

load foo_lib.py

• Run a script. No need to import, just run

run foo.py

• Restart code

reload(foo_lib)

• Display all the content of the external file as its output

%pycat foo.py

• List commands

lsmagic

• Shows how much time a code needs to run

%time a = some_function()  #Return the running time on this line

%timeit a = some_function() #Return more details, such number of loops

%%time	#Return the running time about all the code below
a = some_funtion()
b = some_another_function()

• Shows the list of variables in your environment

%who_ls 		#Outputs a list of all interactive variables in your environment

%who_ls function	#Reduces the output to interactive variables of type "function"