Azure Function is not working

Question

We are facing error while creating the function app, its not working as required and mentioned in the azure documents

Answer 1

Hi Amrutha M, please find below possible causes and solutions for it. Please let me know if still facing issue and need any further assistance on this.

Issue 1 - ModuleNotFoundError: No module named 'requests'

• Problem: Function fails at import time with No module named 'requests'.
• Cause: requests is not installed in the function runtime environment.
• Solution: Ensure requests is in requirements.txt and that dependencies are installed during deployment.

Issue 2 - requirements.txt present but ignored by deployment (zip/run-from-package)

• Problem: requirements.txt exists but the runtime still can't import the package.
• Cause: Zip-deploy / Run-from-Package was used without enabling server-side build; platform did not run pip install.
• Solution: Enable build or install deps in pipeline:
  • Option A (server-side build): set app setting SCM_DO_BUILD_DURING_DEPLOYMENT=true and redeploy (or use func publish --build remote).

        az functionapp config appsettings set -g <RG> -n <APP> --settings SCM_DO_BUILD_DURING_DEPLOYMENT=true
    

  • Option B (CI build): run pip install -r requirements.txt -t .python_packages/lib/site-packages in CI, include .python_packages in artifact.

Issue 3 - Dependencies installed only in local venv / not packaged into artifact

• Problem: Dev machine has requests; deployed artifact lacks it.
• Cause: Packages installed in local virtualenv but CI/build didn’t package site-packages.
• Solution: In CI (Azure DevOps / GitHub Actions), add a step to install and include dependencies:

    pip install -r requirements.txt -t .python_packages/lib/site-packages
    zip -r artifact.zip .  # include .python_packages
    # deploy artifact.zip (or use Azure WebAppsPublish/ZipDeploy task)
  

Issue 4 - App setting WEBSITE_RUN_FROM_PACKAGE prevents server build

• Problem: App runs from package and ignores platform build steps.
• Cause: WEBSITE_RUN_FROM_PACKAGE set to 1 or a package URL but SCM_DO_BUILD_DURING_DEPLOYMENT not enabled.
• Solution: Either enable server build or change deployment to include built dependencies. Check setting:

    az functionapp config appsettings list -g <RG> -n <APP_NAME> --query "[?name=='WEBSITE_RUN_FROM_PACKAGE' || name=='SCM_DO_BUILD_DURING_DEPLOYMENT']"