[Python] (scalar) vector reading speedup via numpy (#4390)

* Add numpy accessor to python flatbuffers scalar vectors

* Update python tests to test numpy vector accessor

* Update appveyor CI to run Python tests, save generated code as artifact

* Update example generated python code

* Add numpy info to python usage docs

* Update test schema and python tests w/ multi-byte vector

* did not mean to push profiling code

* adding float64 numpy tests

appveyor.yml

@@ -5,6 +5,12 @@ branches:
 os: Visual Studio 2015
 
 environment:
+
+  global:
+    # Workaround for https://github.com/conda/conda-build/issues/636
+    PYTHONIOENCODING: UTF-8
+    CONDA_INSTALL_LOCN: "C:\\Miniconda35-x64"
+
   matrix:
     - CMAKE_VS_VERSION: "10 2010"
     - CMAKE_VS_VERSION: "14 2015"
@@ -26,17 +32,39 @@ build:
   project: ALL_BUILD.vcxproj
   verbosity: minimal
 
+install:
+  - set PATH=%CONDA_INSTALL_LOCN%;%CONDA_INSTALL_LOCN%\scripts;%PATH%;
+
 test_script:
-  - rem "---------------- C++ -----------------"
-  - "%CONFIGURATION%\\flattests.exe"
-  - rem "---------------- Java -----------------"
   - "cd tests"
+  - rem "Building all code"
+  - generate_code.bat -b %CONFIGURATION%
+  - 7z a GeneratedMyGameCode.zip MyGame\
+  - rem "---------------- C++ -----------------"
+  - "cd .."
+  - "%CONFIGURATION%\\flattests.exe"
+  - "cd tests"
+  - rem "---------------- Java -----------------"
   - "java -version"
   - "JavaTest.bat"
   - rem "---------------- JS -----------------"
   - "node --version"
   - "..\\%CONFIGURATION%\\flatc -b -I include_test monster_test.fbs unicode_test.json"
   - "node JavaScriptTest ./monster_test_generated"
+  - rem "-------------- Python ---------------"
+  - where python
+  - python --version
+  - where pip
+  - pip --version
+  - where conda
+  - conda --version
+  - rem "installing flatbuffers python library"
+  - pip install ../python
+  - rem "testing without installing Numpy"
+  - python py_test.py 0 0 0
+  - rem "testing after installing Numpy"
+  - conda install --yes numpy
+  - python py_test.py 0 0 0
   - rem "---------------- C# -----------------"
   # Have to compile this here rather than in "build" above because AppVeyor only
   # supports building one project??
@@ -47,5 +75,7 @@ test_script:
   - "cd ..\\.."
 
 artifacts:
-  - path: $(CONFIGURATION)\\flatc.exe
+  - path: $(CONFIGURATION)\flatc.exe
     name: flatc.exe
+  - path: tests\GeneratedMyGameCode.zip
+    name: GeneratedMyGameCode.zip