Deployed Azure Python via github-actions does not find any package

Question

When deployed via github-actions deploy.yaml

    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: 'Azure Login'
        uses: azure/login@v2
        with:
          client-id: ${{ env.ARM_CLIENT_ID }}
          subscription-id: ${{ env.ARM_SUBSCRIPTION_ID }}
          tenant-id: ${{ env.ARM_TENANT_ID }}
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.9.20'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
      - name: 'Download Azure Function publishing profile'
        env:
          AZURE_SUBSCRIPTION_ID: ${{ env.ARM_SUBSCRIPTION_ID }}
          FUNCTION_APP_RESOURCE_GROUP: ${{ env.ARM_RESOURCE_GROUP_NAME }}
          FUNCTION_APP_NAME: fa-${{ env.APP_NAME }}
        run: |
          echo "FUNCTION_APP_PUB_PROFILE=$(az functionapp deployment list-publishing-profiles --subscription $AZURE_SUBSCRIPTION_ID --resource-group $FUNCTION_APP_RESOURCE_GROUP --name $FUNCTION_APP_NAME --xml)" >> $GITHUB_ENV
      - name: "Deploy function"
        uses: Azure/functions-action@v1
        with:
          app-name: fa-${{ env.APP_NAME }}
          publish-profile: ${{ env.FUNCTION_APP_PUB_PROFILE }}
          package: '.'

my python function function_app.py

import azure.functions as func
import logging

app = func.FunctionApp()

@app.timer_trigger(schedule="0 */1 * * * *", arg_name="myTimer", run_on_startup=True,
                   use_monitor=False)
def zsdbi(myTimer: func.TimerRequest) -> None:

    try:
        logging.info('36 Python timer trigger function executed.')
        import zsbiconfig
        import sftplib
        # import triggerfunc

        if myTimer.past_due:
            logging.info('The timer is past due!')

        config = zsbiconfig.MyConfig(azure=True)
        print('config.ftp_host:', config.ftp_host)
        print('config.ftp_username:', config.ftp_username)
        print('config.ftp_password:', config.ftp_password)

        # err = triggerfunc.triggerfunc(config)

    except Exception as e:
        logging.exception(e)

    return

does not find any package installed from requirements.txt

azure-functions
matplotlib
numpy
sftplib
pandas
python-dateutil
azure-identity
azure-keyvault-secrets
Office365-REST-Python-Client

The error message is :

2025-01-21T12:26:00Z   [Error]   No module named 'sftplib'
Traceback (most recent call last):
  File "/home/site/wwwroot/function_app.py", line 13, in zsdbi
    import sftplib
ModuleNotFoundError: No module named 'sftplib'

But the log of pip install ... performed on azure with the above deploy.yaml says :


Run python -m pip install --upgrade pip
  
Requirement already satisfied: pip in /home/runner/_work/_tool/Python/3.9.20/x64/lib/python3.9/site-packages (24.3.1)
Requirement already satisfied: azure-functions in /home/runner/_work/_tool/Python/3.9.20/x64/lib/python3.9/site-packages (from -r requirements.txt (line 5)) (1.21.3)
Requirement already satisfied: matplotlib in /home/runner/_work/_tool/Python/3.9.20/x64/lib/python3.9/site-packages (from -r requirements.txt (line 6)) (3.9.4)
Requirement already satisfied: numpy in /home/runner/_work/_tool/Python/3.9.20/x64/lib/python3.9/site-packages (from -r requirements.txt (line 7)) (2.0.2)
Requirement already satisfied: sftplib in /home/runner/_work/_tool/Python/3.9.20/x64/lib/python3.9/site-packages (from -r requirements.txt (line 8)) (0.0.2)

Note 1 When I install the dependencies in .python_packages/lib/site-packageswith :


      - name: Install dependencies
        run: |
          pushd './${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}'
          python -m pip install --upgrade pip
          pip install -r requirements.txt --target=".python_packages/lib/site-packages"

It works, but as all packages are now included in the zip file deployed to azure. The deploy takes n (minutes) longer which is somewhat annoying

Hi ! Pls see my edited Note 1 question. It is somehow related where the dependencies are installed — mbieren
– mbieren, Commented Jan 21 at 13:44
Activate virtual environment and install the depedencies. Add the steps in GitHub workflow - name: Create and start virtual environment run: | python -m venv venv source venv/bin/activate - name: Install dependencies run: pip install -r requirements.txt. — Pravallika KV
– Pravallika KV, Commented Jan 21 at 14:11

Richard Price · Accepted Answer · 2025-02-21 08:21:42Z

1

I have also hit this issue recently. Unfortunately the issue can be found in the Azure-generated yaml samples, and the example from Pravallika would also have this problem.

Essentially, the venv is not activated when you pip install, so you will need to change or combine the steps to make sure the requirements are installed in the active venv, i.e:

  - name: Initialise the virtual environment
    run: |
      python -m venv venv
      source venv/bin/activate && pip install -r requirements.txt

answered Feb 21 at 8:21

Richard Price

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Comments

Pravallika KV · Accepted Answer · 2025-01-21 14:39:24Z

You have to install packages in Virtual Environment.

Add below steps in GitHub workflow(.yml file):

Create and activate virtual environment

      - name: Create and start virtual environment
        run: |
          python -m venv venv
          source venv/bin/activate

Install dependencies.

      - name: Install dependencies
        run: pip install -r requirements.txt

Modify GitHub workflow as below:

name: Build and deploy Python project to Azure Function App - functionAppName

on:
  push:
    branches:
      - main
  workflow_dispatch:

env:
  AZURE_FUNCTIONAPP_PACKAGE_PATH: '.' # set this to the path to your web app project, defaults to the repository root
  PYTHON_VERSION: '3.11' # set this to the python version to use (supports 3.6, 3.7, 3.8)

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Python version
        uses: actions/setup-python@v1
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Create and start virtual environment
        run: |
          python -m venv venv
          source venv/bin/activate
      - name: Install dependencies
        run: pip install -r requirements.txt

      - name: Zip artifact for deployment
        run: zip release.zip ./* -r

      - name: Upload artifact for deployment job
        uses: actions/upload-artifact@v3
        with:
          name: python-app
          path: |
            release.zip
            !venv/
  deploy:
    runs-on: ubuntu-latest
    needs: build
    environment:
      name: 'Production'
      url: ${{ steps.deploy-to-function.outputs.webapp-url }}

    steps:
      - name: Download artifact from build job
        uses: actions/download-artifact@v3
        with:
          name: python-app

      - name: Unzip artifact for deployment
        run: unzip release.zip

      - name: 'Deploy to Azure Functions'
        uses: Azure/functions-action@v1
        id: deploy-to-function
        with:
          app-name: 'functionappName'
          slot-name: 'Production'
          package: ${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}
          publish-profile: ${{ secrets.AZUREAPPSERVICE_PUBLISHPROFILE_5821AADXXX9CC06CD3FF7 }}
          scm-do-build-during-deployment: true
          enable-oryx-build: true

Deployment Status in GitHub:

enter image description here

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