In this blog post, we will introduce the Elyra code snippet extension, which enables us to reuse arbitrary snippets of code in your notebooks, source code, or markdown files in JupyterLab.
Let’s say you are working on a notebook and want to include a standard header or footer (like licensing text) or some code that you’ve previously created. This typically results in a hectic search. In which notebook did I use the code? Where’s the most current version of the disclaimer I need to add? While maintaining a “scratchpad” might help, native support for reusable code or documentation assets in JupyterLab holds a lot more appeal.
Code snippet ui
Installing the code snippet extension
The code snippet extension can be installed as part of Elyra or individually using pip or conda. In the context of this article, see below how to install the code snippet extension in your existing JupyterLab deployment.
Installing the extension using pip
$ pip install elyra-code-snippet-extension && jupyter lab buildInstalling the extension using Anaconda
$ conda install -c conda-forge elyra-code-snippet-extension && jupyter lab buildManaging and using code snippets
Code snippets are accessed by opening the code snippets tab on the JupyterLab sidebar:
The code snippets UI is divided into two parts:
a quick search panel, and
the code snippet list, providing access to code snippet specific actions, such as copy, insert, edit, and delete.
Creating a snippet
To create a snippet click + above the search bar and provide the required information. You can optionally tag snippets to make them more easily discoverable.
Finding a snippet
To locate a code snippet, enter a search term and/or pick one of the listed tags.
Copying a snippet to the clipboard
You copy the snippet content to the clipboard by clicking the snippet’s copy icon.
Inserting a snippet
Click the snippet’s insert icon to paste the snippet content in the desired destination, such as a cell in a notebook or an open editor window. Drag-and-Drop of the snippet has also been incorporated in the latest Elyra release.
Do note that the editor does not keep track of where you’ve inserted a snippet. Also, note that snippets don’t act like macros and changes to a snippet are therefore not reflected in the locations where the snippet was embedded.
Editing a snippet
You edit a snippet by clicking the snippet’s pencil icon.
Deleting a code snippet
You delete a code snippet by clicking the snippet’s trash icon.
Sharing code snippets
The code snippet extension currently doesn’t provide any import or export capabilities. However, you can access the relevant metadata files that contain the definitions.
The definitions are stored in the $JUPYTER_DATA_DIR/metadata/code-snippets directory, where $JUPYTER_DATA_DIR refers to the Jupyter data directory, which you can identify by running the following command in a terminal window:
$ jupyter --data-dirIn my environment, the code snippets are stored in /Users/ptitzler/Library/Jupyter/metadata/code-snippets/. To back up or share my snippets, I typically create an archive from the content of this directory.
Try Code Snippet from Binder
To experiment with the code snippet extension without installing it locally, just click on the binder link below and then look for the code-snippet icon on the JupyterLab side-bar :
Try the code snippet extension online on Binder
Closing thoughts
Elyra is constantly making Jupyter Notebooks better aiming to help data scientists, machine learning engineers, and AI developers through the model development life cycle complexities, making JupyterLab even better for AI practitioners.
Source: Medium
The Tech Platform
Comentários