This will be a short article about Python dunder methods, also known as magic methods.

What are Dunder Methods?

Dunder methods are special methods in Python that start and end with double underscores (__). They allow you to define the behavior of your objects for built-in operations, such as addition, subtraction, string representation, and more.

Some common dunder methods include:

Hi Guys,

I'm running : IRIS for UNIX (Ubuntu Server LTS for x86-64 Containers) 2024.3 (Build 217U), and I have https web request call to connect and get data from external server ( https://myserver.com/api/gap/...etc) but I'm getting this error: "fetch failed unable to verify the first certificate".

Hi all,

I’m working on a data transformation in IRIS where I need to calculate the difference in hours between two timestamps stored as %TimeStamp.

Example:

Set startTime = "2024-07-12 08:30:00"
Set endTime = "2024-07-12 15:15:00"

I’d like to calculate the number of hours (with decimals, like 6.75) between them. What's the recommended way to do this in ObjectScript? I’ve seen examples using $ZDATETIME, but I’m not sure if that’s the cleanest approach.

Any suggestions or best practices would be appreciated!

Thanks,
Jhonn Marie

We encountered difficulties while attempting to establish a JDBC connection to Intersystems using AZURE Databricks, resulting in an inability to retrieve data. The JDBC version utilized was intersystems-jdbc-3.3.1.jar. If anyone has successfully employed Databricks for establishing a connection, we would appreciate information regarding the libraries you used

Hi Developers,

We are happy to announce the new InterSystems online programming contest dedicated to creating useful tools to make your fellow developers' lives easier:

🏆 InterSystems Developer Tools Contest 🏆

Duration: July 14 - August 3, 2025

Prize pool: $12,000

Audience

Those curious in exploring new GenerativeAI usecases.

Shares thoughts and rationale when training generative AI for pattern matching.

Challenge 1 - Simple but no simpler

A developer aspires to conceive an elegant solution to requirements.
Pattern matches ( like regular expressions ) can be solved for in many ways. Which one is the better code solution?
Can an AI postulate an elegant pattern match solution for a range of simple-to-complex data samples?

Consider the three string values:

• "AA"
• "BB"
• "CC"

Hey Developers,

Watch this video from our Tech Video Challenge to learn how to set up and work with the InterSystems IRIS Java External Language Gateway.

⏯ IRIS External Language Gateway, Java Edition

#InterSystems Demo Games entry

⏯️ Healthcare AI Agent Platform

An AI Agent Platform specifically built for the healthcare industry that requires no technical background to utilize. By simply defining a goal or initiative, a swarm of AI agents will conduct operations to achieve the stated end goal and measure their own efficacy along the way to continuously improve. Healthcare organizations today are facing a myriad of challenges that impact financial and clinical performance. These problems are well known, and there is a general consensus on how many of them can be alleviated with AI. However, healthcare organizations face unique challenges in implementing AI:

• HIPAA/Regulatory compliance - Data quality & accessibility - Embedding AI into current clinical workflows, i.e. integrating AI in such a way that it does not require clinicians to re-orient their processes. It should complement existing workflows, not disrupt them.
• Implementation cost/high technical barrier of entry – staff needed to build and maintain AI processes can become expensive
• Ambiguous ROI calculation – careful considerations must be made to properly measure and understand the efficacy of AI integrations. InterSystems is uniquely positioned to address these challenges, enabling healthcare organizations to implement AI with minimal burden.

Presenters:
🗣 @Daniel Cole, Sales Engineer, InterSystems
🗣 @Jeff Morgan, Sales Engineer, InterSystems
🗣 @Raef Youssef, Sales Engineer, InterSystems
🗣 @Jose Ruperez, Senior Sales Engineer, InterSystems
🗣 @Harry Tong, Principal Solutions Architect, InterSystems
🗣 @Nicholai Mitchko, Sales Engineering Manager, InterSystems

InterSystems FAQ rubric

You can check the free disk space at any time using the system utility class: SYS.Database and query: FreeSpace.

Here's how to try it in the IRIS terminal (go to the %SYS namespace and then run it):

zn"%SYS"set stmt=##class(%SQL.Statement).%New()
set st=stmt.%PrepareClassQuery("SYS.Database","FreeSpace")
set rset=stmt.%Execute()
do rset.%Display()

The output result example is as follows:

*In the command execution example, all databases are located on the same disk, so the free disk space (DiskFreeSpace) returns the same value.

I feel I may be in the "people unclear on the concept" group here.

System Default Settings is a great mechanism, and we use some custom code to deploy it in our pipeline after environment specific changes have been applied to the content. However, we are trying our best to reduce the amount of custom code we use in our system that does not relate directly to the business. For CI/CD, this means we are trying to leverage IPM for the heavy lifting.

We are looking for experienced InterSystems IRIS for Health developers to join a long-term healthcare technology project. You must be USA-based and available to work full-time remotely.

🔹 Requirements:

• Strong experience with InterSystems IRIS for Health
• Solid understanding of HL7, FHIR, and healthcare integration workflows
• Proficiency in ObjectScript, and Python/Java/SQL
• Prior experience with EHR, LIS, or other clinical systems is a big plus
• Must be based in the United States

Interested candidates can DM here or email on: ali.ceo@softhawker.com
 

Are you curious about how to run Python scripts directly in your InterSystems IRIS or Caché terminal? 🤔 Good news it's easy! 😆 IRIS supports Embedded Python, allowing you to use Python interactively within its terminal environment. 

How to access the Python Shell?

To launch the Python shell from the IRIS terminal, simply run the following command:

do##class(%SYS.Python).Shell()

This opens an interactive Python shell inside the IRIS terminal. From here, you can write and run Python code just as you would in a normal Python environment.

Exiting the Shell:

>>> quit()

Hello Community
I was running code in the terminal and attempted to interrupt its execution. During that process, I encountered an application error with a log entry dated 01/06/1841, the date seems unusual.

Error <INTERRUPT>ErrST+6^%ETN occurred within %ETN itself. Detailed information cannot be logged.

We have messages that are in a queued state for various reasons and when we do a manual shutdown of the instance, they are moved to a Suspended state. I thought I saw in the documentation somewhere a setting to make sure these messages stay in a queued state and not suspend them. Can someone confirm and point me in the correct location for that documentation, as I am trying to ensure that if we do have to manually shutdown a instance, someone doesn't have to remember to go back in and check for suspended messages and resubmit them?

Thanks

Good morning everyone,In the facility we're working in, we have two separate installations for testing and production. In the test environment, we have production processes running properly, and we need to replicate production processes and settings in the production environment. Until now, when we move from a test environment to a production environment, we currently export the test classes, import them into production, and manually configure the production environment by connecting Services, Processes, and Operations and configuring the settings. We tried exporting the production environment

Hi, Community!

Need a more efficient way to exchange health data? See how InterSystems Payer Services can help:

Automate Prior Authorization and Data Exchange with InterSystems Payer Services

Modules what a topic! We don't have this notion in ObjectScript, but it's a fundamental concept in Python. Let's discover it together.

What is a Module?

I see modules as an intermediate layer between classes and packages. Let see it by example.

A bad example :

# MyClass.py
class MyClass:
    def my_method(self):
        print("Hello from MyClass!")

When you try to use this class in another script, you would do:

# class_usage.py
from MyClass import MyClass # weird, right?

my_instance = MyClass()
my_instance.my_method()

Why this is a bad example?

Hi,

I tried to create a client for Google Cloud Storage using a private endpoint.

like this:

S client=##class(%Net.Cloud.Storage.Client).%New()

S sc=client.CreateClient("",2,credentialsFile,"",.out,privateEndpoint)

But privateEndpoint seems not to be used when trying to send blob from a file:

D sc.UploadBlobFromFile(bucketname,blobname,filename)

We can see at the firewall that the client still tries to use the public endpoint for GCS.  

Even if the private endpoint is definitely reachable.

When we allow the public endpoint in the firewall then it is working as expected.

The 2025.1.1 maintenance releases of InterSystems IRIS^® data platform, InterSystems IRIS^® for Health^TM, and HealthShare^® Health Connect are now Generally Available (GA). Please share your feedback through the Developer Community so we can build a better product together.

Documentation

You can find the detailed change lists & upgrade checklists on these pages:

• InterSystems IRIS
• InterSystems IRIS for Health
• HealthShare Health Connect

Early Access Programs (EAPs)

There are many EAPs available now. Check out this page and register to those you are interested.

How to get the software?

Hey Developers,

Watch this video from our Tech Video Challenge to discover how to connect a FHIR Server and transform a batch file into SDA and then to FHIR JSON:

⏯ Mapping a Custom File to SDA

Users of the %UnitTest framework can now get test coverage information inside VS Code by combining the latest release (v2.0.0) of the InterSystems Testing Manager extension with @Timothy Leavitt's impressive Test Coverage Tool.

Above you can see the Test Coverage pane, which I have moved to the secondary sidebar on the right so it can more easily be explored in conjunction with the Test Explorer on the left.

Hi Community,

We're super excited to share the first video in the "Rarified Air" series on our InterSystems Developers YouTube:

⏯ Securing the Digital Front Door

InterSystems is pleased to announce the General Availability (GA) of the 2025.2 release of InterSystems IRIS® data platform. This is a Continuous Delivery (CD) release. Please note that the GA versions of InterSystems IRIS for Health™ and HealthShare® Health Connect™ 2025.2 are currently withheld due to mirroring limitations introduced by security updates (details below).

Release Highlights

This release introduces impactful enhancements across security, developer experience, operations, and interoperability. Notable new features include:

Optimizing Performance of Apache Web Server and Web Gateway

By Patrick Jamieson, M.D., Product Technical Manager, InterSystems IRIS for Health

Hi,

To add or get information about a user for the management portal you can [within the portal]:
 System Administration > Security Management > Users 

Is it possible to:

1. List a user, user's properties including roles

2. Add a user and set user's properties including roles

3. Set a user's password

for the management portal using a program eg. Objectscript and/or SQL?
If so, how can this be done?
It would be great if you have examples.

Working on wrapping an IRIS Cache ObjectScript method that runs for a few seconds. Trying to get UI updates to show BEFORE the method runs in an async/await function. But it seems to be running synchronously rather than asynchronously . So my question is does IRIS/ObjectScript CSP pages support futures with JavaScript or does it run all synchronously.

Are you familiar with SQL databases, but not familiar with IRIS?  Then read on...

About a year ago I joined InterSystems, and that is how IRIS got on my radar.  I've been using databases for over 40 years—much of that time for database vendors—and assumed IRIS would be largely the same as the other databases I knew.  However I was surprised to find that IRIS is in several ways quite unlike other databases, often much better.  With this, my first article in the Dev Community, I'll give a high-level overview of IRIS for people that are already familiar with the other databases such as Oracle, SQL Server, Snowflake, PostgeSQL, etc.   I hope I can make things clearer and simpler for you and save you some time getting started.

#InterSystems Demo Games entry

⏯️  The Ultimate 3D Industrial Simulation powered by a Game Engine with InterSystems IRIS

In this demo, InterSystems IRIS Interoperability comes alive in an amazing, game-like user experience based on our Ultimate Control Tower demo. We visualize machines in a virtual 3D factory building, interacting with InterSystems IRIS in real time—displaying current statuses and sensor data, simulating machine outages and predictive maintenance scenarios, and triggering workflow tasks and actions in InterSystems IRIS. By using a mobile app on a tablet—and even a VR headset for a fully immersive experience—we unleash the power of InterSystems IRIS.

Presenters:
🗣 @Stephan Mohr, Sales Engineer, InterSystems
🗣 @Jannis Stegmann, Sales Engineer, InterSystems
🗣 @Benjamin Kiwitz, Intern, InterSystems
🗣 @Tuba Incedag, Intern, InterSystems