Adopt black code formatting and add Python 3.7 to CI

Closes #81
CLoses #82

.gitignore

@@ -63,3 +63,4 @@ _build
 
 .cache
 .vscode/
+.pytest_cache/

.pre-commit-config.yaml

@@ -0,0 +1,14 @@
+repos:
+-   repo: https://github.com/ambv/black
+    rev: stable
+    hooks:
+    - id: black
+      language_version: python3.7
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v1.3.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: debug-statements
+    -   id: flake8

.travis.yml

@@ -1,25 +1,28 @@
+dist: xenial
+sudo: false
 language: python
+stages:
+  - linting
+  - test
+cache: pip
+script: tox --recreate
 python:
-  - "2.7"
-addons:
-  apt:
-    sources:
-      - deadsnakes
-    packages:
-      - python3.5
-install:
-  - pip install tox
-env:
-  - TOX_ENV=py27
-  - TOX_ENV=py35
-    #- TOX_ENV=pypy
-    #- TOX_ENV=pypy3
-  - TOX_ENV=flake8
-script:
-  - tox -e $TOX_ENV
-services:
-  - mongodb
-before-script:
-  # Timer: https://docs.travis-ci.com/user/database-setup/#MongoDB-does-not-immediately-accept-connections
-  - sleep 15
-  - mongo eve_swagger_test --eval 'db.addUser("test_user", "test_pw");'
+  - 2.7
+  - 3.5
+  - 3.6
+  - 3.7
+  - pypy3.5-6.0
+install: travis_retry pip install tox-travis
+
+jobs:
+    include:
+    - stage: linting
+      python: '3.7'
+      env:
+      install:
+      - pip install pre-commit
+      - pre-commit install-hooks
+      before_script:
+      services:
+      script:
+      - pre-commit run --all-files

CHANGES.rst

@@ -6,12 +6,16 @@ Here you can see the full list of changes between each Eve-Swagger release.
 In Development
 --------------
 
+- Adopt Black code formatting style (`#82`_)
+- Add Python 3.6 and 3.7 to CI matrix (`#81`_)
 - Drop Python 2.6, 3.3, and 3.4 support (`#80`_)
 - Support for OpenAPI 3 (`#70`_, `#79`_)
 - Add support for resource-level ``example`` definition (`#69`_)
 - Add a stale-bot to automatically close stale issues and pull requests (`#68`_)
 
-.. _`#80`: https://github.com/pyeve/eve-swagger/pull/80
+.. _`#82`: https://github.com/pyeve/eve-swagger/issues/82
+.. _`#81`: https://github.com/pyeve/eve-swagger/issues/81
+.. _`#80`: https://github.com/pyeve/eve-swagger/issues/80
 .. _`#79`: https://github.com/pyeve/eve-swagger/pull/79
 .. _`#70`: https://github.com/pyeve/eve-swagger/pull/70
 .. _`#69`: https://github.com/pyeve/eve-swagger/issues/69
@@ -92,7 +96,7 @@ Released on 25 October, 2016
 - Fix: README: fix comma that causes a validation error in example script (Luis
   Fernando Gomes).
 
-- New: Ability to generate Swagger tags (Stratos Gerakakis). 
+- New: Ability to generate Swagger tags (Stratos Gerakakis).
 - New: add CORS support (otibsa).
 - New: Python 2.6 compatibility (otibsa).
 - New: Add a proper test suite. Closes #8 (otibsa).
@@ -105,7 +109,7 @@ Released on 25 October, 2016
 - New: Option to disable resource documentation via `disable_documentation` in
   `settings.py` (otibsa).
 - New: Ability to include description fields. Just add a `description` field in
-  the schema definitions in `settings.py` (Stratos Gerakakis). 
+  the schema definitions in `settings.py` (Stratos Gerakakis).
 - New: Add support for more eve features: `allowed`, `default`, `minlength`,
   `maxlength`, `min`, `max` (otibsa).
 - New: Enable additional documentation to be injected at runtime (otibsa).

README.rst

@@ -1,7 +1,7 @@
 Eve-Swagger |latest-version|
 ============================
 
-|build-status| |python-support|
+|latest-version| |build-status| |python-support| |license| |black-formatting|
 
 Swagger_ extension for Eve_ powered RESTful APIs.
 
@@ -102,7 +102,7 @@ As an example:
 
 **NOTE**: If you do use that feature make sure that the ``TRANSPARENT_SCHEMA_RULES``
 in your ``settings.py`` is also turned ON, otherwise you will get complains from the
-Cerberus library about "unknown field 'description' for field [yourFieldName]", or use 
+Cerberus library about "unknown field 'description' for field [yourFieldName]", or use
 a custom schema validator, as below:
 
 .. code-block:: python
@@ -194,10 +194,10 @@ The example is shown in the swagger ui in the model and the responses.
 .. image:: resources/example_field.png
 
 **NOTE**: As with the description, the field ``TRANSPARENT_SCHEMA_RULES``
-must be enabled in your ``settings.py``, otherwise the Cerberus library 
+must be enabled in your ``settings.py``, otherwise the Cerberus library
 will display an error about "unknown field 'example' for field[yourFieldName]".
 
-If you do not want to use this rule for the entire schema, you can also use 
+If you do not want to use this rule for the entire schema, you can also use
 your own validator.
 
 .. code-block:: python
@@ -259,6 +259,9 @@ See the original LICENSE_ for more information.
 .. |license| image:: https://img.shields.io/pypi/l/eve-swagger.svg
    :alt: Software license
    :target: https://github.com/pyeve/eve-swagger/blob/master/LICENSE
+.. |black-formatting| image:: https://img.shields.io/badge/code%20style-black-000000.svg
+   :alt: Black code formatting
+   :target: https://github.com/ambv/black
 
 .. _Swagger: http://swagger.io/
 .. _Eve: http://python-eve.org/

eve_swagger/__init__.py

@@ -9,5 +9,5 @@
 """
 from .swagger import swagger, add_documentation  # noqa
 
-INFO = 'SWAGGER_INFO'
-HOST = 'SWAGGER_HOST'
+INFO = "SWAGGER_INFO"
+HOST = "SWAGGER_HOST"