anchor.diff:  git submodule update --init
   popd
   
  +set ARROW_VERSION=%1
  +set RC_NUMBER=%2
  +
  +python arrow\dev\release\download_rc_binaries.py %ARROW_VERSION% %RC_NUMBER% ^
  +    --package_type python ^
  +    --regex=".*win_amd64.*" || EXIT /B 1
  +
   call deactivate
   
   set ARROW_TEST_DATA=%cd%\arrow\testing\data
   
  -CALL :verify_wheel 3.6 %1 %2 m
  +CALL :verify_wheel 3.6 m
   if errorlevel 1 GOTO error
   
  -CALL :verify_wheel 3.7 %1 %2 m
  +CALL :verify_wheel 3.7 m
   if errorlevel 1 GOTO error
   
  -CALL :verify_wheel 3.8 %1 %2
  +CALL :verify_wheel 3.8
   if errorlevel 1 GOTO error
   
   :done
  
positive.code: 
  set WHEEL_FILENAME=pyarrow-%ARROW_VERSION%-cp%PY_VERSION_NO_PERIOD%-cp%PY_VERSION_NO_PERIOD%%ABI_TAG%-win_amd64.whl
  
  @rem Requires GNU Wget for Windows
  wget --no-check-certificate -O %WHEEL_FILENAME% https://apache.jfrog.io/artifactory/arrow/download_file?file_path=python-rc%%2F%ARROW_VERSION%-rc%RC_NUMBER%%%2F%WHEEL_FILENAME% || EXIT /B 1
  
  pip install %WHEEL_FILENAME% || EXIT /B 1
  
  pip install -r arrow/python/requirements-test.txt || EXIT /B 1
  
  py.test %CONDA_ENV_PATH%\Lib\site-packages\pyarrow --pdb -v || EXIT /B 1
  
  python -c "import pyarrow" || EXIT /B 1
  python -c "import pyarrow.parquet" || EXIT /B 1
  python -c "import pyarrow.flight" || EXIT /B 1
  python -c "import pyarrow.dataset" || EXIT /B 1
  
  :done
  
  
negative.code: :verify_wheel
  
  set PY_VERSION=%1
  set ABI_TAG=%2
  set PY_VERSION_NO_PERIOD=%PY_VERSION:.=%
  
  set CONDA_ENV_PATH=%_VERIFICATION_DIR%\_verify-wheel-%PY_VERSION%
  