How to add/edit code snippets in jupyer notebook? - jupyter-notebook

Question

I tried to follow the instructions given in the README file of the extension.
Im using Windows and to open my notebooks I use the jupyter-notebook.exe stored in the directory
..\Anaconda3\Scripts
Within the Anaconda3 directory I go to the subdirectory
Anaconda3\Lib\site-packages\jupyter_contrib_nbextensions\nbextensions\snippets
and there change the code of the file "snippets.json" from
{
"snippets" : [
{
"name" : "example",
"code" : [
"# This is an example snippet!",
"# To create your own, add a new snippet block to the",
"# snippets.json file in your jupyter data directory under nbextensions:",
"# $(jupyter --data-dir)/nbextensions/snippets/snippets.json",
"import this"
]
}
]
}
to
{
"snippets" : [
{
"name" : "example",
"code" : [
"# This is a test if something changed",
]
]
}
Then I restart my notebook and insert the example snippet. But my changes weren't adopted, I still get the original example snipped.
What I am doing wrong?

Answer 1

If you are using Anaconda, you don't necessarily need to go searching for directories. There is a template embedded in the "Nbextensions" tab.
Check "Snippets Menu" box
Scroll down to 'Parameters' and check the "Include custom menu...JSON string below" box
Insert whatever sample snippet you want
Refresh your notebook
Check out one of my snippets:
{
"name" : "My favorites",
"sub-menu" : [
{
"name" : "import packages",
"snippet" : ["# import various packages"
"import os"
"import scipy"
"import pandas as pd"
"import numpy as np"
"import seaborn as sns"
"import matplotlib.pyplot as plt"
"%matplotlib inline"
"# plot settings"
"from pandas.plotting import register_matplotlib_converters"
"register_matplotlib_converters()"
"plt.rcParams['agg.path.chunksize'] = 10000"]
},
{
"name" : "TeX can be written in menu labels $\\alpha_W e\\int_0 \\mu \\epsilon$",
"snippet" : ["another_new_command(2.78)"]
}
]
}
Also, be careful with the quotations and commas. Additional help on that can be found here.

Answer 2

In windows(os) jupyter notebook extension are hidden in programData folder (C:\ProgramData\jupyter\nbextensions\snippets)
To make changes in snippet just edit the snippets.JSON file accordingly:

Answer 3

I think you are searching in the wrong directory.
In windows, run command jupyter --paths in anaconda prompt
this will return the locations of config: data: & runtime:
search for the file snippets.json in the data: locations
in my case it is C:\ProgramData\jupyter\nbextensions\snippets
change and save the content in snippets.json and then restart your jupyter notebook
it will work!