diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 25cc03e..7a73454 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -1,84 +1,80 @@
 # from matplotlib's azure setup
 
-
 schedules:
-- cron: "0 0 * * 4"
-  displayName: Weekly build
-  branches:
-    include:
-    - releases/*
-  always: true
-
+  - cron: "0 0 * * 4"
+    displayName: Weekly build
+    branches:
+      include:
+        - releases/*
+    always: true
 
 trigger:
   tags:
     include:
-    - '*'
+      - "*"
   branches:
     include:
-    - '*'
-
+      - "*"
 
 variables:
   PIP_CACHE_DIR: $(Pipeline.Workspace)/cache/pip
 
-
 jobs:
-- job: 'static_checks'
-  pool:
-    vmImage: ubuntu-16.04
-  variables:
-    TOXENV: flake8,pylint,docs,check-manifest,checkreadme
-  steps:
-    - task: UsePythonVersion@0
-      inputs:
-        versionSpec: '3.8'
-        architecture: 'x64'
-    - script: |
-        pip install tox
-      displayName: Install tox
-    - script: |
-        tox
-      displayName: tox
+  - job: "static_checks"
+    pool:
+      vmImage: ubuntu-16.04
+    variables:
+      TOXENV: flake8,pylint,docs,check-manifest,checkreadme
+    steps:
+      - task: UsePythonVersion@0
+        inputs:
+          versionSpec: "3.8"
+          architecture: "x64"
+      - script: |
+          pip install tox
+        displayName: Install tox
+      - script: |
+          tox
+        displayName: tox
 
-- job: 'ubuntu1604'
-  pool:
-    vmImage: ubuntu-16.04
-  strategy:
-    matrix:
-      py37:
-        python.version: '3.7'
-        TOXENV: py37
-      py38:
-        python.version: '3.8'
-        TOXENV: py38
-      py39:
-        python.version: '3.9'
-        TOXENV: py39
-    maxParallel: 4
+  - job: "ubuntu1604"
+    pool:
+      vmImage: ubuntu-16.04
+    strategy:
+      matrix:
+        py37:
+          python.version: "3.7"
+          TOXENV: py37
+        py38:
+          python.version: "3.8"
+          TOXENV: py38
+        py39:
+          python.version: "3.9"
+          TOXENV: py39
+      maxParallel: 4
 
-  steps:
-    - template: ci/azure-pipelines-steps.yml
-      parameters:
-        platform: linux
+    steps:
+      - template: ci/azure-pipelines-steps.yml
+        parameters:
+          platform: linux
 
-- job: 'macOS1015'
-  pool:
-    vmImage: macOS-10.15
-  strategy:
-    matrix:
-      py37:
-        python.version: '3.7'
-        TOXENV: py37
-      py38:
-        python.version: '3.8'
-        TOXENV: py38
-      py39:
-        python.version: '3.9'
-        TOXENV: py39
-    maxParallel: 4
+  - job: "macOS1015"
+    pool:
+      vmImage: macOS-10.15
+    strategy:
+      matrix:
+        py37:
+          python.version: "3.7"
+          TOXENV: py37
+        py38:
+          python.version: "3.8"
+          TOXENV: py38
+        py39:
+          python.version: "3.9"
+          TOXENV: py39
+      maxParallel: 4
 
-  steps:
-    - template: ci/azure-pipelines-steps.yml
-      parameters:
-        platform: macos
+    steps:
+      - template: ci/azure-pipelines-steps.yml
+        parameters:
+          platform: macos
diff --git a/bors.toml b/bors.toml
index 11d0636..1fcf76a 100644
--- a/bors.toml
+++ b/bors.toml
@@ -5,4 +5,3 @@ status = [
   "codecov/patch",
   "codecov/project",
 ]
-
diff --git a/ci/azure-pipelines-steps.yml b/ci/azure-pipelines-steps.yml
index 831c65d..f9557a8 100644
--- a/ci/azure-pipelines-steps.yml
+++ b/ci/azure-pipelines-steps.yml
@@ -1,38 +1,38 @@
 steps:
-- task: UsePythonVersion@0
-  inputs:
-    versionSpec: '$(python.version)'
-    architecture: 'x64'
-  displayName: 'Use Python $(python.version)'
-  condition: and(succeeded(), ne(variables['python.version'], 'Pre'))
+  - task: UsePythonVersion@0
+    inputs:
+      versionSpec: "$(python.version)"
+      architecture: "x64"
+    displayName: "Use Python $(python.version)"
+    condition: and(succeeded(), ne(variables['python.version'], 'Pre'))
 
-- script: |
-    python -m pip install --upgrade pip
-    pip install tox codecov twine wheel
-  displayName: 'Install pip dependencies'
+  - script: |
+      python -m pip install --upgrade pip
+      pip install tox codecov twine wheel
+    displayName: "Install pip dependencies"
 
-- task: TwineAuthenticate@0
-  inputs:
-    externalFeeds: 'pypi'
-  condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/')
+  - task: TwineAuthenticate@0
+    inputs:
+      externalFeeds: "pypi"
+    condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/')
 
-- script: env
-  displayName: 'print env'
+  - script: env
+    displayName: "print env"
 
-- script: |
-    tox
-  displayName: 'tox'
+  - script: |
+      tox
+    displayName: "tox"
 
-#- script: |
-#    codecov
-#  displayName: 'codecov'
-# hopefully the bash uploader will work
-- script: |
-    bash <(curl -s https://codecov.io/bash)
-  displayName: 'Upload to codecov.io'
+  #- script: |
+  #    codecov
+  #  displayName: 'codecov'
+  # hopefully the bash uploader will work
+  - script: |
+      bash <(curl -s https://codecov.io/bash)
+    displayName: "Upload to codecov.io"
 
-- script: |
-    python setup.py sdist bdist_wheel
-    twine upload --skip-existing -r pypi --config-file $(PYPIRC_PATH) dist/*
-  displayName: 'Upload to PyPI'
-  condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/')
+  - script: |
+      python setup.py sdist bdist_wheel
+      twine upload --skip-existing -r pypi --config-file $(PYPIRC_PATH) dist/*
+    displayName: "Upload to PyPI"
+    condition: startsWith(variables['Build.SourceBranch'], 'refs/tags/')
diff --git a/tox.ini b/tox.ini
index 75ec174..26c0d33 100644
--- a/tox.ini
+++ b/tox.ini
@@ -39,7 +39,7 @@ commands=
 
 [testenv:check-manifest]
 deps=check-manifest
-setenv = 
+setenv =
     CHECK_MANIFEST=true
 commands=
     check-manifest