Python code Deployment to Catalyst Appsail via CLI

Python code Deployment to Catalyst Appsail via CLI

Hi Support Team,
     
    Our python code is run properly in windows os catalyst local environment without any issue so we tried to deploy to catalyst dev environment and deployed the code successfully without any issue.

We got an invocation url for Appsail so we try to run our Appsail code via browser. Finally we have checked the logs in catalyst got error as module 'os' has no attribute 'add_dll_directory'.

We asked help to Catalyst support they replied like 

create a requirements.txt file in the lib folder that contains all the neccessary packages for your application and add the below code snippet in the "scripts" key in the app-config.json from your appsail folder.

  1. "scripts": {
  2. "preserve":"del /q .\\lib\\* /s && python3.9 -m pip install -r requirements.txt -t .",
  3. "predeploy":"del /q .\\lib\\* /s && python3.9 -m pip install --only-binary=:all: --platform manylinux2014_aarch64 -r requirements.txt -t ."
  4. }

Our Python verson is 3.12.1 and we have installed all the packages inside the lib folder as per our python verson.

Is it to change/install all the packages as per catalyst dev environment python verson 3.9 before deploy the code to development envirnment?
    • Announcements

    • [Webinar] Zero manual sync: Enabling smart HR–payroll workflows with unified automation

      Hello everyone, If your HR and payroll teams are still relying on manual exports, spreadsheet reconciliations, or constant back-and-forth coordination to keep employee data aligned, this session is for you. . We’re hosting a live webinar featuring Kyle
    • [Webinar] How Raptee.HV accelerates its EV platform

      Curious about how EV platforms work behind the scenes? What does it actually take to run an EV platform from onboarding users to managing connected vehicles and deploying updates seamlessly? In this session, Raptee.HV shares how their platform is built
    • [Webinar] Deploy Docker apps with AppSail's custom runtime | Feb. 19

      Hi everyone, Join us on February 19, 2026 at 8–9 PM IST for a live Catalyst webinar demonstrating how to deploy OCI-compliant Docker images with AppSail's custom runtime. You’ll learn how to: Package your apps as Docker containers Deploy via CLI or connect
    • Catalyst backs Vite.js!

      Hi everyone, We're happy to support the open-source ecosystem that powers modern web development! If you’re building apps with Vite, Catalyst Slate is your go-to platform to deploy blazing-fast frontend apps with ease, scalability, and zero infrastructure
    • Catalyst QuickML 2025 Year In Review

      Hello everyone 👋 It’s been an exciting year for Catalyst QuickML. In 2025, as the Catalyst platform continued to expand its capabilities, QuickML focused on strengthening reliability, developer control, and operational readiness across the AI lifecycle.

      Catalyst Community