flake8, lint, and black CI tests

Author: TomNicholas

azure-pipelines.yml

@@ -6,29 +6,50 @@
 trigger:
 - master
 
-pool:
-  vmImage: 'ubuntu-latest'
-strategy:
-  matrix:
-    Python36:
-      python.version: '3.6'
-    Python37:
-      python.version: '3.7'
-    Python38:
-      python.version: '3.8'
+- job: Linux
+  pool:
+    vmImage: 'ubuntu-16.04'
+  strategy:
+    matrix:
+      Python36:
+        python.version: '3.6'
+      Python37:
+        python.version: '3.7'
+      Python38:
+        python.version: '3.8'
 
-steps:
-- task: UsePythonVersion@0
-  inputs:
-    versionSpec: '$(python.version)'
-  displayName: 'Use Python $(python.version)'
+  steps:
+  - task: UsePythonVersion@0
+    inputs:
+      versionSpec: '$(python.version)'
+    displayName: 'Use Python $(python.version)'
 
-- script: |
-    python -m pip install --upgrade pip
-    pip install -r requirements.txt
-  displayName: 'Install dependencies'
+  - script: |
+      python -m pip install --upgrade pip
+      pip install -r requirements.txt
+    displayName: 'Install dependencies'
 
-- script: |
-    pip install pytest pytest-azurepipelines
-    pytest --verbose
-  displayName: 'pytest'
+  - script: |
+      pip install pytest pytest-azurepipelines
+      pytest --verbose
+    displayName: 'pytest'
+
+- job: LintFlake8
+  pool:
+    vmImage: 'ubuntu-16.04'
+  steps:
+  - task: UsePythonVersion@0
+  - bash: python -m pip install flake8
+    displayName: Install flake8
+  - bash: flake8
+    displayName: flake8 lint checks
+
+- job: FormattingBlack
+  pool:
+    vmImage: 'ubuntu-16.04'
+  steps:
+  - task: UsePythonVersion@0
+  - bash: python -m pip install black
+    displayName: Install black
+  - bash: black --check .
+    displayName: black formatting check