anchor.diff:  
   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
  -
  +pip install python-rc\%ARROW_VERSION%-rc%RC_NUMBER%\%WHEEL_FILENAME% || 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
  +
  +pip install -r arrow\python\requirements-test.txt || EXIT /B 1
  +pytest %CONDA_ENV_PATH%\Lib\site-packages\pyarrow --pdb -v || EXIT /B 1
   
   :done
   
  
positive.code: :verify_wheel
  
  set PY_VERSION=%1
  set ARROW_VERSION=%2
  set RC_NUMBER=%3
  set ABI_TAG=%4
  set PY_VERSION_NO_PERIOD=%PY_VERSION:.=%
  
  set CONDA_ENV_PATH=%_VERIFICATION_DIR%\_verify-wheel-%PY_VERSION%
  
negative.code: 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 m
  if errorlevel 1 GOTO error
  
  CALL :verify_wheel 3.7 m
  if errorlevel 1 GOTO error
  
  CALL :verify_wheel 3.8
  if errorlevel 1 GOTO error
  
  :done
  