Back in black! (#739)

Applies a bunch clean up filters with pre-commit (https://pre-commit.com/)

.coveragerc

@@ -23,4 +23,3 @@ omit=
 [report]
 exclude_lines =
     raise NotImplementedError
-

.flake8

@@ -61,4 +61,3 @@ exclude =
 # E999 SyntaxError: invalid syntax (hack for hound CI which runs python 3.x)
 
 ignore = E501, W291, W293, W391, W503, E221, E261, E402, N802, N806, E999
-

.gitignore

@@ -45,4 +45,4 @@ htmlcov
 .DS_Store
 
 # pyenv
-.python-version
+.python-version

.hound.yml

@@ -16,4 +16,3 @@ python:
 
 rubocop:
   enabled: false
-

.pre-commit-config.yaml

@@ -0,0 +1,44 @@
+# Copyright (c) 2019 Shotgun Software Inc.
+#
+# CONFIDENTIAL AND PROPRIETARY
+#
+# This work is provided "AS IS" and subject to the Shotgun Pipeline Toolkit
+# Source Code License included in this distribution package. See LICENSE.
+# By accessing, using, copying or modifying this work you indicate your
+# agreement to the Shotgun Pipeline Toolkit Source Code License. All rights
+# not expressly granted therein are reserved by Shotgun Software Inc.
+
+# Styles the code properly
+# Exclude the following file types
+# - third party modules (tank_vendor/third_party)
+# - any UI files (ui/*.py)
+# - any images (*.png)
+# - any pickles (*.pickle)
+# - any files that are compared against the output of a tool (test_post_update_new_parser.yml, test_post_update_old_parser.yml, tank_core.txt)
+exclude: "tank_vendor|third_party|ui\/.*py$|\/.*png|\/.*pickle|test_post_update_new_parser.yml|test_post_update_old_parser.yml|tank_core.txt|zip_with_root_folder.txt|zip_with_root_auto_detect.txt"
+# List of super useful formatters.
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.2.3
+    hooks:
+    # Ensures the code is syntaxically correct
+    - id: check-ast
+      language_version: python3
+    # Ensures a file name will resolve on all platform
+    - id: check-case-conflict
+    # Checks files with the execute bit set have shebangs
+    - id: check-executables-have-shebangs
+    # Ensure there's no incomplete merges
+    - id: check-merge-conflict
+    # Adds an empty line if missing at the end of a file.
+    - id: end-of-file-fixer
+    # Makes sure requirements.txt is properly formatted
+    - id: requirements-txt-fixer
+    # Removes trailing whitespaces.
+    - id: trailing-whitespace
+  # Leave black at the bottom so all touchups are done before it is run.
+  - repo: https://github.com/ambv/black
+    rev: stable
+    hooks:
+    - id: black
+      language_version: python3

.tkdeploy

@@ -8,4 +8,4 @@ exclude=
     .coveragerc
     # Remove unneeded files.
     tests
-    docs
+    docs

.travis.yml

@@ -37,4 +37,4 @@ install:
 # command to run tests
 script: tests/run_travis.sh
 # Only run coveralls if we actually ran tests. Otherwise this breaks coveralls it seems.
-after_success: test $SHOTGUN_COMPILE_ONLY = 0 && coveralls
+after_success: test $SHOTGUN_COMPILE_ONLY = 0 && coveralls

LICENSE

@@ -4,9 +4,9 @@ Version: 7/07/2013
 
 Shotgun Software Inc. ("Company") provides the Shotgun Pipeline Toolkit,
 software, including source code, in this package or repository folder (the
-"Shotgun Toolkit Code") subject to your acceptance of and compliance with 
+"Shotgun Toolkit Code") subject to your acceptance of and compliance with
 the following terms and conditions (the "License Terms"). By accessing,
-downloading, copying, using or modifying any of the Shotgun Toolkit Code, 
+downloading, copying, using or modifying any of the Shotgun Toolkit Code,
 you agree to these License Terms.
 
 Eligibility
@@ -33,7 +33,7 @@ to the Shotgun Toolkit Code or any of Company's other software or intellectual
 property rights. You agree not to take any action with respect to the Shotgun
 Toolkit Code that is not expressly authorized above.
 
-You must keep intact (and, in the case of copies, reproduce) all copyright 
+You must keep intact (and, in the case of copies, reproduce) all copyright
 and other proprietary notices, including all references to and copies of these
 License Terms, as originally included on, in, or with the Shotgun Toolkit
 Code. You must ensure that all derivative works you make of the Shotgun
@@ -64,7 +64,7 @@ Company).
 Liability
 
 You agree to be solely responsible for your use and modifications of the
-Shotgun Toolkit Code, and for any harm or liability arising out of such use 
+Shotgun Toolkit Code, and for any harm or liability arising out of such use
 or modifications, including but not limited to any liability for infringement
 of third-party intellectual property rights.
 
@@ -78,7 +78,7 @@ advised of the possibility of such damages; and (b) in any event, Company's
 aggregate liability under these License Terms or in connection with the
 Shotgun Toolkit Code, regardless of the form of action and under any theory
 (whether in contract, tort, statutory, or otherwise), will not exceed the
-greater of $50 or the amount (if any) that you actually paid for access to 
+greater of $50 or the amount (if any) that you actually paid for access to
 the Shotgun Toolkit Code.
 
 Ownership
@@ -115,7 +115,7 @@ Company grants you a non-exclusive right to continue to modify, make
 derivative works of, reproduce, and use the Contribution for your
 non-commercial or internal business purposes, and to further Company's
 development of Company Programs. This grant does not: (a) limit Company's
-rights, (b) grant you any rights with respect to the Company Programs; nor 
+rights, (b) grant you any rights with respect to the Company Programs; nor
 (c) permit you to distribute, operate for the benefit of third parties (for
 example, on a hosted basis), or otherwise commercially exploit the
 Contribution.
@@ -143,4 +143,4 @@ employees, and agents against any and all claims, actions or damages
 account of a breach or alleged breach of the foregoing warranty. You make no
 other express or implied warranty (including without limitation any warranty
 of merchantability or fitness for a particular purpose) regarding the
-Contribution.
+Contribution.

README.md

@@ -3,6 +3,7 @@
 [![Build Status Linux](https://secure.travis-ci.org/shotgunsoftware/tk-core.svg?branch=master)](http://travis-ci.org/shotgunsoftware/tk-core)
 [![Build status Windows](https://ci.appveyor.com/api/projects/status/wa0nkvpawf6020fi/branch/master?svg=true)](https://ci.appveyor.com/project/jfboismenu/tk-core/branch/master)
 [![Coverage Status](https://coveralls.io/repos/github/shotgunsoftware/tk-core/badge.svg?branch=master)](https://coveralls.io/github/shotgunsoftware/tk-core?branch=master)
+[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![Linting](https://img.shields.io/badge/PEP8%20by-Hound%20CI-a873d1.svg)](https://houndci.com)
 
 # Shotgun Pipeline Toolkit Core API
@@ -13,7 +14,7 @@ This repository represents the Shotgun Pipeline Toolkit Core API.
 
 Installing the Shotgun Pipeline Toolkit is normally done via our
 Shotgun App Store. For detailed instructions on how to get started
-with Toolkit, head over to our support site: 
+with Toolkit, head over to our support site:
 https://support.shotgunsoftware.com/entries/95442748
 
 ## Reference Documentation and Release Notes