add setup.py, add pypi to .travis.yml, misc. tweaks for pypi, .gitignore

Per instructions at:

adafruit/circuitpython#979

.gitignore

@@ -1,6 +1,12 @@
+*.mpy
+.idea
 __pycache__
 _build
 *.pyc
 .env
 build*
 bundles
+*.DS_Store
+.eggs
+dist
+**/*.egg-info

.travis.yml

@@ -1,32 +1,30 @@
-# This is a common .travis.yml for generating library release zip files for
-# CircuitPython library releases using circuitpython-build-tools.
-# See https://github.com/adafruit/circuitpython-build-tools for detailed setup
-# instructions.
-
 dist: trusty
 sudo: false
 language: python
 python:
-    - "3.6"
-
+- '3.6'
 cache:
-    pip: true
-
+  pip: true
 deploy:
-  provider: releases
-  api_key: $GITHUB_TOKEN
-  file_glob: true
-  file: $TRAVIS_BUILD_DIR/bundles/*
-  skip_cleanup: true
-  overwrite: true
-  on:
-    tags: true
-
+  - provider: releases
+    api_key: "$GITHUB_TOKEN"
+    file_glob: true
+    file: "$TRAVIS_BUILD_DIR/bundles/*"
+    skip_cleanup: true
+    overwrite: true
+    on:
+      tags: true
+  - provider: pypi
+    user: adafruit-travis
+    on:
+      tags: true
+    password:
+      secure: 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
 install:
-  - pip install pylint circuitpython-build-tools Sphinx sphinx-rtd-theme
-
+- install -r requirements.txt
+- pip install pylint circuitpython-build-tools Sphinx sphinx-rtd-theme
 script:
-  - pylint adafruit_as726x.py
-  - ([[ ! -d "examples" ]] || pylint --disable=missing-docstring,invalid-name,bad-whitespace examples/*.py)
-  - circuitpython-build-bundles --filename_prefix adafruit-circuitpython-as726x --library_location .
-  - cd docs && sphinx-build -E -W -b html . _build/html
+- pylint adafruit_as726x.py
+- ([[ ! -d "examples" ]] || pylint --disable=missing-docstring,invalid-name,bad-whitespace examples/*.py)
+- circuitpython-build-bundles --filename_prefix adafruit-circuitpython-as726x --library_location .
+- cd docs && sphinx-build -E -W -b html . _build/html && cd ..

docs/conf.py

@@ -15,11 +15,6 @@ extensions = [
     'sphinx.ext.todo',
 ]
 
-# Uncomment the below if you use native CircuitPython modules such as
-# digitalio, micropython and busio. List the modules you use. Without it, the
-# autodoc module docs will fail to generate with a warning.
-autodoc_mock_imports = ["digitalio", "busio", "adafruit_bus_device", "micropython", "ustruct"]
-
 autodoc_member_order = 'bysource'
 
 intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'BusDevice': ('https://circuitpython.readthedocs.io/projects/bus_device/en/latest/', None),'Register': ('https://circuitpython.readthedocs.io/projects/register/en/latest/', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}

requirements.txt

@@ -1,2 +1,3 @@
-adafruit-circuitpython-bus-device
+Adafruit-Blinka
+adafruit-circuitpython-busdevice
 adafruit-circuitpython-register

setup.py

@@ -0,0 +1,64 @@
+"""A setuptools based setup module.
+
+See:
+https://packaging.python.org/en/latest/distributing.html
+https://github.com/pypa/sampleproject
+"""
+
+# Always prefer setuptools over distutils
+from setuptools import setup, find_packages
+# To use a consistent encoding
+from codecs import open
+from os import path
+
+here = path.abspath(path.dirname(__file__))
+
+# Get the long description from the README file
+with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
+    long_description = f.read()
+
+setup(
+    name='adafruit-circuitpython-as726x',
+
+    use_scm_version=True,
+    setup_requires=['setuptools_scm'],
+
+    description='CircuitPython driver for AS726x spectral sensor.',
+    long_description=long_description,
+    long_description_content_type='text/x-rst',
+
+    # The project's main homepage.
+    url='https://github.com/adafruit/Adafruit_CircuitPython_AS726x',
+
+    # Author details
+    author='Adafruit Industries',
+    author_email='circuitpython@adafruit.com',
+
+    install_requires=[
+        'Adafruit-Blinka',
+        'adafruit-circuitpython-register',
+        'adafruit-circuitpython-busdevice'
+    ],
+
+    # Choose your license
+    license='MIT',
+
+    # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
+    classifiers=[
+        'Development Status :: 3 - Alpha',
+        'Intended Audience :: Developers',
+        'Topic :: Software Development :: Libraries',
+        'Topic :: System :: Hardware',
+        'License :: OSI Approved :: MIT License',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+    ],
+
+    # What does your project relate to?
+    keywords='adafruit as726x light sensor hardware micropython circuitpython',
+
+    # You can just specify the packages manually here if your project is
+    # simple. Or you can use find_packages().
+    py_modules=['adafruit_as726x'],
+)