Add support for running tests on Windows Python using Appveyor CI

.appveyor.yml

@@ -0,0 +1,74 @@
+environment:
+  global:
+    # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
+    # /E:ON and /V:ON options are not enabled in the batch script intepreter
+    # See: http://stackoverflow.com/a/13751649/163740
+    CMD_IN_ENV: "cmd /E:ON /V:ON /C run_with_env.cmd"
+    # links to python-appveyor-demo's scripts by Olivier Grisel's (@ogrisel): 
+    RUN_WITH_ENV_CMD_URL: "https://raw.githubusercontent.com/ogrisel/python-appveyor-demo/master/appveyor/run_with_env.cmd"
+    INSTALL_PS1_URL: "https://raw.githubusercontent.com/ogrisel/python-appveyor-demo/master/appveyor/install.ps1"
+
+  matrix:
+    - PYTHON: "C:\\Python27"
+      PYTHON_VERSION: "2.7.x"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python34"
+      PYTHON_VERSION: "3.4.x"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python35"
+      PYTHON_VERSION: "3.5.0"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python27-x64"
+      PYTHON_VERSION: "2.7.x"
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python34-x64"
+      PYTHON_VERSION: "3.4.x"
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python35-x64"
+      PYTHON_VERSION: "3.5.0"
+      PYTHON_ARCH: "64"
+
+install:
+  # download 'run_with_env.cmd' script that configures environment variables for the
+  # MSVC compiler and Windows SDK versions.
+  - "appveyor DownloadFile %RUN_WITH_ENV_CMD_URL%"
+
+  # download 'install.ps1' to install Python (official .msi of http://python.org) and 
+  # pip when not already installed
+  - "appveyor DownloadFile %INSTALL_PS1_URL%"
+  - ps: if (-not(Test-Path($env:PYTHON))) { & install.ps1 }
+
+  # Prepend newly installed Python to the PATH of this build
+  - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
+
+  # check that we have the expected version and architecture for Python
+  - "python --version"
+  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+
+  # upgrade pip to avoid out-of-date warnings
+  - "pip install --disable-pip-version-check --user --upgrade pip"
+
+  # Install the build dependencies of the project. If some dependencies contain
+  # compiled extensions and are not provided as pre-built wheel packages,
+  # pip will build them from source using the MSVC compiler matching the
+  # target Python version and architecture
+  - "%CMD_IN_ENV% pip install -vr requirements.txt"
+
+test_script:
+  - "SET PATH=C:\\msys64\\usr\\bin;%PATH%"
+  # 'run-test.sh' interprets $PYTHON as the executable name
+  - "SET PYTHON=python"
+  - "bash run-tests.sh"
+
+after_test:
+  # if tests are successful, create packages for the project
+  - "%CMD_IN_ENV% python setup.py sdist --formats=zip"
+
+artifacts:
+  # archive the generated packages in the ci.appveyor.com build report
+  - path: dist\*