message: appveyor fix pip install
diff: @@ -15,7 +15,7 @@ environment:
  # CYGWIN: "c:\\cygwin64"
  install:
  - - "%PYTHON%\\python.exe -m pip -r requirements.txt"
  + - "%PYTHON%\\python.exe -m pip install -r requirements.txt"
  - "%PYTHON%\\python.exe setup.py build"
  - "%PYTHON%\\python.exe setup.py install"
  