fix path to python

Author: mckaymatt

appveyor.yml

@@ -42,6 +42,9 @@ environment:
     # - TARGET: x86_64-pc-windows-msvc
       # RUST_VERSION: nightly
 
+matrix:
+  fast_finish: true
+
 init:
   - "%PYTHON_DIR%\\python.exe -m pip install pip==9.0.1 scikit-ci==0.14.0"
   # - python -m pip install scikit-ci==0.14.0 scikit-ci-addons==0.15.0
@@ -59,14 +62,14 @@ install:
   - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
   - rustc -Vv
   - cargo -V
-  - python -m ci install
+  - "%PYTHON_DIR%\\python -m ci install"
 
 
 build_script:
-  - python -m ci build
+  - "%PYTHON_DIR%\\python -m ci build"
 
 test_script:
-  - python -m ci test
+  - "%PYTHON_DIR%\\python -m ci test"
 
 # after_test:
 # - python -m ci after_test
@@ -109,6 +112,7 @@ branches:
 notifications:
   - provider: Email
     on_build_success: false
+    on_build_failure: false
 
 # Building is done in the test phase, so we disable Appveyor's build phase.
 # build: false