Update project to support Python 3.6 & 3.9 and update travis to use stages

.flake8

@@ -1,4 +1,4 @@
 [flake8]
 # E501: Line length is enforced by Black, so flake8 doesn't need to check it
-# W503: Black disagrees with this rule, so disable it
+# W503: Black disagrees with this rule, as does PEP 8; Black wins
 ignore = E501, W503

.gitignore

@@ -128,5 +128,161 @@ dmypy.json
 # Pyre type checker
 .pyre/
 
-# Temporary files
-*.swp
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+### PyCharm ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### PyCharm Patch ###
+# Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721
+
+# *.iml
+# modules.xml
+# .idea/misc.xml
+# *.ipr
+
+# Sonarlint plugin
+# https://plugins.jetbrains.com/plugin/7973-sonarlint
+.idea/**/sonarlint/
+
+# SonarQube Plugin
+# https://plugins.jetbrains.com/plugin/7238-sonarqube-community-plugin
+.idea/**/sonarIssues.xml
+
+# Markdown Navigator plugin
+# https://plugins.jetbrains.com/plugin/7896-markdown-navigator-enhanced
+.idea/**/markdown-navigator.xml
+.idea/**/markdown-navigator-enh.xml
+.idea/**/markdown-navigator/
+
+# Cache file creation bug
+# See https://youtrack.jetbrains.com/issue/JBR-2257
+.idea/$CACHE_FILE$
+
+# CodeStream plugin
+# https://plugins.jetbrains.com/plugin/12206-codestream
+.idea/codestream.xml
+
+### vscode ###
+.vscode/*
+
+*.code-workspace

.travis.yml

@@ -1,28 +1,68 @@
 ---
+# Add additional stages in the order of execution here, and then under the job:include: key
+dist: "focal"  # Ubuntu 20.04
+stages:
+  - name: "lint"
+  - name: "build"
+  - name: "test"
+  - name: "deploy"
+    if: "branch = master"
+
 language: "python"
-services:
-  - "docker"
 python:
+  - 3.6
   - 3.7
   - 3.8
+  - 3.9
+
+services:
+  - "docker"
 
 env:
   global:
     # yamllint disable-line rule:line-length
     - secure: "oSEtMKAmz3dlzrFnRLp3D/KgdSFy7XmVv6c3aSP7LXi8L2ljRrqFOB6BU3RQ6hNbSF3/bvpM9I4QKfZmOyId23Pr5UoMzaN8eL+xL8ZLkjZp0ngVZcCeXRvGwcmg4WJvVOnq3T/NoC/zwtsZbUt19yIJVVCEQqc84im90g6cLNMUulxQOvh6M/qgW4AFhAfi7lUFybl/RiWZYhvFchWifYTj7IfvZSDtin4UStJj7UApguqW4SseTZ/bmt18GSkOn9WO0sOaUSkehkT3NEMy97TLY73KgYb3LNrP47C2NPYQyyzJdb0szJ9CcVKtFjBBl5bqN5MGW/fqtqbh84Jq2GhTHNiYBcu6u/CJ+fscWYJkEWo0nNeED/ef8Vwv1M/q68IVeWsNO3+Se41WvOhMRsM8u1ek6+sHyyTNcVpGIUw4phHBsfCNiIlydWr8VpjZv9N3E4KqKRyjtpOoZElY11ZJa5rEL4D0s3JgSug958dYg/vsh+QVivNb9bbC/o9vBFqZGhWzGmNW2F3ezODZ9JcBlf1TEIZf8QPAHEO2SF5XCVRcDyByefqW28pOzwgk9Acl1/zIh5fiH/9ZAemlxjr17t4DQQbeQ/wbF6Gsmn0cYYoxjWMSrLqMD7TRQOTAYcxWAOKN/hCK/K6DS96r2CW5pU506zKMvezrskDmmX0="
+
+# Script & Before Script for test stage
 before_script:
-  - "pip install invoke"
-  - "invoke build-test-container -p $TRAVIS_PYTHON_VERSION"
-  - "curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py > /tmp/get-poetry.py"
-  - "python /tmp/get-poetry.py -y --version 1.0.2"
-  - "source $HOME/.poetry/env"
+  - "pip install invoke poetry toml"
+  - "poetry install"
 script:
-  - "invoke tests -p $TRAVIS_PYTHON_VERSION"
-deploy:
-  provider: "script"
-  script: "poetry config pypi-token.pypi $PYPI_TOKEN && poetry publish --build"
-  skip_cleanup: true
-  "on":
-    tags: true
-    branch: "master"
-    python: "3.7"
+  - "invoke pytest --local"
+
+jobs:
+  include:
+    - stage: "lint"
+      env:
+        - "INVOKE_LOCAL=True"
+      before_script:
+        - "pip install invoke poetry toml"
+        - "poetry install --no-interaction --no-ansi --no-root"
+      script:
+        - "invoke black"
+        - "invoke bandit"  # Bandit fails to function on > Py3.8 https://github.com/PyCQA/bandit/issues/639
+        - "invoke pydocstyle"
+        - "invoke mypy"
+        - "invoke flake8"
+        - "invoke yamllint"
+        - "invoke pylint"
+      python: 3.7
+
+    - stage: "build"
+      before_script:
+        - "pip install invoke poetry toml"
+      script:
+        - "invoke build-image --nocache"
+        - "poetry build"
+      python: 3.7
+
+    - stage: "deploy"
+      script: "skip"
+      deploy:
+        provider: "script"
+        script: "poetry config pypi-token.pypi $PYPI_TOKEN && poetry publish --build"
+        skip_cleanup: true
+        "on":
+          tags: true
+          branch: "master"
+          python: 3.7

.yamllint.yml

@@ -0,0 +1,10 @@
+---
+extends: "default"
+rules:
+  comments: "enable"
+  empty-values: "enable"
+  indentation:
+    indent-sequences: "consistent"
+  line-length: "disable"
+  quoted-strings:
+    quote-type: "double"

Dockerfile

@@ -10,4 +10,7 @@ COPY pyproject.toml /local
 COPY poetry.lock /local
 
 RUN poetry config virtualenvs.create false \
-  && poetry install --no-interaction --no-ansi
+  && poetry install --no-interaction --no-ansi --no-root
+
+COPY . /local
+RUN poetry install --no-interaction --no-ansi