Improve documentation and build files

.travis.yml

@@ -1,19 +1,13 @@
 sudo: false
 language: python
-matrix:
-  include:
-    - python: 2.7
-    - python: 3.5
-    - python: 3.6
-    - python: 3.7
-      dist: xenial
-      sudo: true
+python:
+  - "2.7"
+  - "3.5"
+  - "3.6"
+  - "3.7"
+  - "3.8"
 install:
-    - pip install flake8
-    - pip install mock
-    - pip install pytest==3.5.1
-    - pip install pytest-cov==2.5.1
-    - pip install python-coveralls==2.9.1
+    - pip install flake8 mock pytest pytest-cov coveralls
     - pip install sphinx sphinx_rtd_theme
     - pip install .
 script:

README.rst

@@ -40,13 +40,6 @@ visualize, inspect and manipulate binary trees. It allows you to skip the
 tedious work of setting up test data, and dive straight into practising your
 algorithms. Heaps and BSTs (binary search trees) are also supported.
 
-Announcements
-=============
-
-* Please see the releases_ page for details on the latest updates.
-
-.. _releases: https://github.com/joowani/binarytree/releases
-
 Requirements
 ============
 

docs/contributing.rst

@@ -1,45 +1,27 @@
 Contributing
 ------------
 
-Instructions
+Requirements
 ============
 
-Before submitting a pull request on GitHub_, please make sure you meet the
-following **requirements**:
-
-* The pull request points to the dev_ (development) branch.
-* All changes are squashed into a single commit (I like to use ``git rebase -i``
-  to do this).
-* The commit message is in present tense (good: "Add feature", bad:
-  "Added feature").
-* Correct and consistent style: Sphinx_-compatible docstrings, correct snake
-  and camel casing, and PEP8_ compliance (see below).
-* No classes/methods/functions with missing docstrings or commented-out lines.
-  You can take a look at the source code on GitHub_ for examples.
-* The test coverage_ remains at %100. You may find yourself having to write
-  superfluous unit tests to keep this number up. If a piece of code is trivial
-  and has no need for tests, use this_ to exclude it from coverage.
-* No build failures on TravisCI_. The builds automatically trigger on PR
-  submissions.
-* Does not break backward-compatibility (unless there is a really good reason).
-* Compatibility with all supported Python versions: 2.7, 3.4, 3.5 and 3.6.
-
-.. warning::
-    The dev branch is occasionally rebased_, and its commit history may be
-    overwritten in the process. Before you begin feature work, git fetch or
-    pull to ensure that your local branch has not diverged. If you see git
-    conflicts and just want to start from scratch, run these commands:
-
-    .. code-block:: bash
-
-        ~$ git checkout dev
-        ~$ git fetch origin
-        ~$ git reset --hard origin/dev  # THIS WILL WIPE ALL LOCAL CHANGES
+When submitting a pull request, please ensure your changes meet the following
+requirements:
+
+* Pull request points to dev_ (development) branch.
+* Changes are squashed into a single commit.
+* Commit message is in present tense (e.g. "Add foo" over "Added foo").
+* Sphinx_-compatible docstrings.
+* PEP8_ compliance.
+* Test coverage_ remains at %100.
+* No build failures on TravisCI_.
+* Up-to-date documentation (see below).
+* Maintains backward-compatibility.
+* Maintains compatibility with Python 2.7+ and 3.4+.
 
 Style
 =====
 
-To ensure PEP8_ compliance, run flake8_:
+Run flake8_ to check style:
 
 .. code-block:: bash
 
@@ -48,17 +30,11 @@ To ensure PEP8_ compliance, run flake8_:
     ~$ cd binarytree
     ~$ flake8
 
-You must resolve all issues reported. If there is a good reason to ignore
-errors coming from a specific piece of code, visit here_ to see how to exclude
-the lines.
 
 Testing
 =======
 
-To test your changes, run the unit tests that come with **binarytree** on your
-local machine. The tests use pytest_.
-
-To run the unit tests:
+Run unit tests:
 
 .. code-block:: bash
 
@@ -67,44 +43,35 @@ To run the unit tests:
     ~$ cd binarytree
     ~$ py.test --verbose
 
-To run the unit tests with coverage report:
+Run unit tests with coverage:
 
 .. code-block:: bash
 
     ~$ pip install coverage pytest pytest-cov
     ~$ git clone https://github.com/joowani/binarytree.git
     ~$ cd binarytree
-    ~$ py.test --verbose --cov=binarytree --cov-report=html
+    ~$ py.test --cov=binarytree --cov-report=html
 
     # Open the generated file htmlcov/index.html in a browser
 
 Documentation
 =============
 
-The documentation (including the README) is written in reStructuredText_ and
-uses Sphinx_. To build an HTML version of the documentation on your local
-machine:
+Documentation uses reStructuredText_ and Sphinx_. To build locally:
 
 .. code-block:: bash
 
     ~$ pip install sphinx sphinx_rtd_theme
     ~$ git clone https://github.com/joowani/binarytree.git
     ~$ cd binarytree/docs
     ~$ sphinx-build . build
+    # Open build/index.html in a browser
 
-    # Open the generated file build/index.html in a browser
-
-As always, thank you for your contribution!
 
-.. _rebased: https://git-scm.com/book/en/v2/Git-Branching-Rebasing
 .. _dev: https://github.com/joowani/binarytree/tree/dev
-.. _GitHub: https://github.com/joowani/binarytree
 .. _PEP8: https://www.python.org/dev/peps/pep-0008/
 .. _coverage: https://coveralls.io/github/joowani/binarytree
-.. _this: http://coverage.readthedocs.io/en/latest/excluding.html
 .. _TravisCI: https://travis-ci.org/joowani/binarytree
 .. _Sphinx: https://github.com/sphinx-doc/sphinx
 .. _flake8: http://flake8.pycqa.org
-.. _here: http://flake8.pycqa.org/en/latest/user/violations.html#in-line-ignoring-errors
-.. _pytest: https://github.com/pytest-dev/pytest
 .. _reStructuredText: https://en.wikipedia.org/wiki/ReStructuredText

docs/exceptions.rst

@@ -1,7 +1,7 @@
 Exceptions
 ----------
 
-The page lists the exceptions raised by **binarytree**:
+This page contains exceptions raised by **binarytree**:
 
 .. automodule:: binarytree.exceptions
     :members:

pytest.ini

@@ -1,4 +1,4 @@
 [pytest]
 python_files = tests.py test_*.py *_tests.py
-addopts = -vv -p no:warnings --cov=binarytree
-norecursedirs = venv htmlcov build dist .idea .git
+addopts = -s -vv -p no:warnings --cov=binarytree
+norecursedirs = .cache .git .idea .pytest_cache build dist docs htmlcov venv

setup.cfg

@@ -1,2 +1,5 @@
 [bdist_wheel]
 universal = 1
+
+[flake8]
+exclude = .cache,.git,.idea,.pytest_cache,__pycache__,docs/conf.py,dist,venv