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Learnosity / learnosity-sdk-python

Learnosity SDK for Python
Apache License 2.0
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learnosity python sdk

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Learnosity SDK - Python

Everything you need to start building your app in Learnosity, with the Python programming language.
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An official Learnosity open-source project.

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Table of Contents

Overview: what does it do?

The Learnosity Python SDK makes it simple to interact with Learnosity APIs.

image-concept-overview.png

It provides a number of convenience features for developers, that make it simple to do the following essential tasks:

For example, the SDK helps with creating a signed request for Learnosity:

image-signed-request-creation.png

Once the SDK has created the signed request for you, your app sends that on to an API in the Learnosity cloud, which then retrieves the assessment you are asking for, as seen in the diagram below:

image-assessment-retrieval.png

This scenario is what you can see running in the Quick start guide example (see below).

There's more features, besides. See the detailed list of SDK features on the reference page.

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Requirements

  1. Runtime libraries for Python 3 installed. (instructions)

  2. The Pip package manager installed. You use Pip to access the Learnosity Python SDK on Pypi (the Python Package Index).

  3. The Jinja templating library. For the tutorial on this page, you will also need Jinja installed. Jinja helps in rendering HTML templates, and importing Python variables into web pages. It's not actually a requirement of the SDK itself, so if your app doesn't use Jinja, no need to install it. Jinja is only required for the tutorial on this page.

Not using Python? See the SDKs for other languages.

Supported Python Versions

We support all versions that have a status of bugfix or security on this list.

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Installation

Installation via Pip

Using Pip is the recommended way to install the Learnosity SDK for Python in production. The easiest way is to run this from your parent project folder:

pip install learnosity_sdk

Then, if you're following the tutorial on this page, also run:

pip install learnosity_sdk[quickstart]

Alternative method 1: download the zip file

Download the latest version of the SDK as a self-contained ZIP file from the GitHub Releases page. The distribution ZIP file contains all the necessary dependencies.

Note: after installation, run this command in the SDK root folder:

pip install .

Alternative 2: development install from a git clone

To install from the terminal, run the following command:

git clone git@github.com:Learnosity/learnosity-sdk-python.git

To set up up your local development environment, use the following:

python3 -m venv .venv/learnosity-sdk-python
source .venv/learnosity-sdk-python/bin/activate
pip install -e .

Note that these manual installation methods are for development and testing only. For production use, you should install the SDK using the Pip package manager for Python, as described above.

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Quick start guide

Let's take a look at a simple example of the SDK in action. In this example, we'll load an assessment into the browser.

Start up your web server and view the standalone assessment example

To start up your Python web server, run the following command:

learnosity-sdk-assessment-quickstart

Note: this will run the code in standalone_assessment.py.

From this point on, we'll assume that your web server is available at this local address (it will report the port being used when you launch it, by default it's port 8000).

http://localhost:8000/

You can now access the APIs using the following URL click here.

Following are the routes to access our APIs.

Open these pages with your web browser. These are all basic examples of Learnosity's integration. You can interact with these demo pages to try out the various APIs. The Items API example is a basic example of an assessment loaded into a web page with Learnosity's assessment player. You can interact with this demo assessment to try out the various Question types.

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How it works

Let's walk through the code for this standalone assessment example. The source file is included under the quickstart folder: standalone_assessment.py.

The first section of code is Python and is executed server-side. It constructs a set of configuration options for Items API, and securely signs them using the consumer key. The second section is HTML and JavaScript and is executed client-side, once the page is loaded in the browser. It renders and runs the assessment functionality.

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Server-side code

We start by including some LearnositySDK helpers - they'll make it easy to generate and sign the config options, and generate unique user and session IDs.

from learnosity_sdk.request import Init # Learnosity helper.
from learnosity_sdk.utils import Uuid   # Learnosity helper.
from .. import config          # config.py, which stores the consumer key and secret.

We also specify a few libraries to run a minimal web server, for the purposes of this example.

from http.server import BaseHTTPRequestHandler, HTTPServer # Python web server.
from jinja2 import Template             # Jinja template library - pulls data into web pages.

We generate UUIDs for the user ID and session ID.

user_id = Uuid.generate()
session_id = Uuid.generate()

We choose the host domain and port number for our local web server.

host = "localhost"
port = 8000

Now we'll declare the configuration parameters for Items API. These specify which assessment content should be rendered, how it should be displayed, which user is taking this assessment and how their responses should be stored. 

items_request = {
    "user_id": user_id,
    "activity_template_id": "quickstart_examples_activity_template_001",
    "session_id": session_id,
    "activity_id": "quickstart_examples_activity_001",
    "rendering_type": "assess",
    "type": "submit_practice",
    "name": "Items API Quickstart",
    "state": "initial"
}

Note: you can submit the configuration options either as a Python array as shown above, or a JSON string.

Next, we declare the Learnosity consumer credentials we'll use to authorize this request. We also construct security settings that ensure the report is initialized on the intended domain. The value provided to the domain property must match the domain from which the file is actually served. The consumer key and consumer secret in this example are for Learnosity's public "demos" account. Once Learnosity provides your own consumer credentials, your Item bank and assessment data will be tied to your own consumer key and secret.

security = {
    'consumer_key': config.consumer_key,
    'domain': host,
}

(of course, you should never normally put passwords into version control)

Now we call LearnositySDK's Init() helper to construct our Items API configuration parameters, and sign them securely with the security, request and config.consumer_secret parameters. init.generate() returns us a JSON blob of signed configuration parameters.

init = Init(
    'items', security, config.consumer_secret,
    request=items_request
)
generated_request = init.generate()

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Web page content

We've got our set of signed configuration parameters, so now we can set up our page content for output. The page can be as simple or as complex as needed, using your own HTML, JavaScript and your frameworks of choice to render the desired product experience.

This example uses plain HTML in a Jinja template, served by the built-in Python web server. However, the Jinja template used here can be easily re-used in another framework, for example Python Flask or Django.

The following example HTML/Jinja template can be found near the bottom of the standalone_assessment.py file.

        template = Template("""<!DOCTYPE html>
        <html>
            <head>
                <link rel="stylesheet" type="text/css" href="https://github.com/Learnosity/learnosity-sdk-python/blob/master/./css/style.css">
            </head>
            <body>
                <h1>{{ name }}</title></h1>
                <!-- Items API will render the assessment app into this div. -->
                <div id="learnosity_assess"></div>
                <!-- Load the Items API library. -->
                <script src=\"https://items.learnosity.com/?latest-lts/\"></script>
                <!-- Initiate Items API assessment rendering, using the signed parameters. -->
                <script>
                    var itemsApp = LearnosityItems.init( {{ generated_request }} );
                </script>
            </body>
        </html>
        """)

The important parts to be aware of in this HTML are:

The call to init() returns an instance of the ItemsApp, which we can use to programmatically drive the assessment using its methods. We pull in our Learnosity configuration in a variable {{ generated_request }}, that the Jinja template will import from the Python program. The variable {{ name }} is the page title which can be set in the same way.

The Jinja template is rendered by the following line, which will bring in those variables.

    response = template.render(name='Standalone Assessment Example', generated_request=generated_request)

There is some additional code in standalone_assessment.py, which runs Python's built-in web server.

This marks the end of the quick start guide. From here, try modifying the example files yourself, you are welcome to use this code as a basis for your own projects. As mentioned earlier, the Jinja template used here can be easily re-used in another framework, for example Python Flask or Django.

Take a look at some more in-depth options and tutorials on using Learnosity assessment functionality below.

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Next steps: additional documentation

SDK reference

See a more detailed breakdown of all the SDK features, and examples of how to use more advanced or specialised features on the SDK reference page.

Additional quick start guides

There are more quick start guides, going beyond the initial quick start topic of loading an assessment, these further tutorials show how to set up authoring and analytics:

Learnosity demos repository

On our demo site, browse through many examples of Learnosity API integration. You can also download the entire demo site source code, the code for any single demo, or browse the codebase directly on GitHub.

Learnosity reference documentation

See full documentation for Learnosity API init options, methods and events in the Learnosity reference site.

Technical use-cases documentation

Find guidance on how to select a development pattern and arrange the architecture of your application with Learnosity, in the Technical Use-Cases Overview.

Deciding what to build or integrate

Get help deciding what application functionality to build yourself, or integrate off-the-shelf with the Learnosity "Golden Path" documentation.

Key Learnosity concepts

Want more general information about how apps on Learnosity actually work? Take a look at our Key Learnosity Concepts page.

Glossary

Need an explanation for the unique Learnosity meanings for Item, Activity and Item bank? See our Glossary of Learnosity-specific terms.

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Contributing to this project

Adding new features or fixing bugs

Contributions are welcome. See the contributing instructions page for more information. You can also get in touch via our support team.

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License

The Learnosity Python SDK is licensed under an Apache 2.0 license. Read more.

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Usage tracking

Our SDKs include code to track the following information by adding it to the request being signed:

We use this data to enable better support and feature planning.

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Further reading

Thanks for reading to the end! Find more information about developing an app with Learnosity on our documentation sites:

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