setup_python.yml

parameters:

  - name: pythonVersion
    type: string
    default: 3.8

  # Artifact feed to pull custom packages from
  - name: pypiAzureArtifactFeed
    type: string

  # Whether to install a package in the working directory. Set to false if you only
  # need access to pip.
  - name: installLocalPackage
    type: boolean
    default: true

# Setup Python
steps:

  - task: UsePythonVersion@0
    inputs:
      versionSpec: ${{ parameters.pythonVersion }}
      architecture: 'x64'

  - script: which python
    displayName: Print Python location

  # Setup access to artifact feed.
  - ${{ if ne(parameters.pypiAzureArtifactFeed, '-') }}:
    - task: PipAuthenticate@1
      displayName: Pip authenticate
      inputs:
        # Provide list of feed names which you want to authenticate
        artifactFeeds: ${{ parameters.pypiAzureArtifactFeed }}
      # We only need to do this step on python builds
      condition: succeeded()

  - script: |
      python -m pip install --upgrade pip
      pip install --upgrade setuptools
    displayName: Upgrade pip and setuptools

  - ${{ if parameters.installLocalPackage }}:
    - script: pip install --no-cache-dir -e .
      displayName: Install Python dependencies

  - script: pip uninstall -y typing
    displayName: Uninstall third-party typing