Attempt to simplify appveyor.yml

And fix cython problem

Author: whtsky

appveyor.yml

@@ -56,48 +56,27 @@ environment:
       PYTHON_VERSION: "3.5.0"
       PYTHON_ARCH: "64"
 
-install:
-  - ECHO "Filesystem root:"
-  - ps: "ls \"C:/\""
-
-  - ECHO "Installed SDKs:"
-  - ps: "ls \"C:/Program Files/Microsoft SDKs/Windows\""
+init:
+  - "ECHO Python %PYTHON_VERSION% (%PYTHON_ARCH%bit) from %PYTHON%"
 
+install:
   # Install Python (from the official .msi of http://python.org) and pip when
   # not already installed.
   - ps: if (-not(Test-Path($env:PYTHON))) { & appveyor\install.ps1 }
-
-  # Prepend newly installed Python to the PATH of this build (this cannot be
-  # done from inside the powershell script as it would require to restart
-  # the parent CMD process).
-  - "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 to the latest version of pip to avoid it displaying warnings
-  # about it being out of date.
-  - "pip install --disable-pip-version-check --user --upgrade pip wheel cython"
+  - "%PYTHON%\\Scripts\\pip install --disable-pip-version-check --upgrade pip wheel cython"
 
 build_script:
-  # Build the compiled extension
-  - "%CMD_IN_ENV% cython bencoder.pyx"
-  - "%CMD_IN_ENV% python setup.py install"
+  - "%PYTHON%\\Scripts\\cython bencoder.pyx"
+  - "%PYTHON%\\python setup.py install"
 
 test_script:
-  # Run the project tests
-  - "%CMD_IN_ENV% python setup.py test"
+  - "%PYTHON%\\python setup.py test"
 
 after_test:
-  # If tests are successful, create binary packages for the project.
-  - "%CMD_IN_ENV% python setup.py bdist_wheel"
-  - "%CMD_IN_ENV% python setup.py bdist_wininst"
-  - "%CMD_IN_ENV% python setup.py bdist_msi"
+  - "%PYTHON%\\python setup.py bdist_wheel bdist_wininst bdist_msi"
   - ps: "ls dist"
 
 artifacts:
-  # Archive the generated packages in the ci.appveyor.com build report.
   - path: dist\*
 
 #on_success: