Can't import pyvips on Windows 10 -- about pyvips HOT 7 CLOSED

C:\Users\dougwood>pip install --user pyvips
Collecting pyvips
Collecting cffi>=1.0.0 (from pyvips)
  Downloading https://files.pythonhosted.org/packages/2d/9e/9d84a78d4ea3d0fa94f6d0e4bcd88406709312949f48f3853f26f8f52ebe/cffi-1.11.5-cp37-cp37m-win32.whl (154kB)
    100% |████████████████████████████████| 163kB 6.6MB/s
Collecting pycparser (from cffi>=1.0.0->pyvips)
  Using cached https://files.pythonhosted.org/packages/8c/2d/aad7f16146f4197a11f8e91fb81df177adcc2073d36a17b1491fd09df6ed/pycparser-2.18.tar.gz
Installing collected packages: pycparser, cffi, pyvips
  Running setup.py install for pycparser ... done
Successfully installed cffi-1.11.5 pycparser-2.18 pyvips-2.1.2
You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

C:\Users\dougwood>
C:\Users\dougwood>vips --version
vips-8.6.5-Wed Jul 25 09:46:22 UTC 2018

C:\Users\dougwood>python
Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:06:47) [MSC v.1914 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import  logging
>>> logging.basicConfig(level=logging.DEBUG)
>>> import pyvips
DEBUG:pyvips:Binary module load failed: No module named '_libvips'
DEBUG:pyvips:Falling back to ABI mode
Traceback (most recent call last):
  File "C:\Users\dougwood\AppData\Roaming\Python\Python37\site-packages\pyvips\__init__.py", line 19, in <module>
    import _libvips
ModuleNotFoundError: No module named '_libvips'

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\dougwood\AppData\Roaming\Python\Python37\site-packages\pyvips\__init__.py", line 53, in <module>
    gobject_lib = ffi.dlopen(_gobject_libname)
  File "C:\Users\dougwood\AppData\Roaming\Python\Python37\site-packages\cffi\api.py", line 141, in dlopen
    lib, function_cache = _make_ffi_library(self, name, flags)
  File "C:\Users\dougwood\AppData\Roaming\Python\Python37\site-packages\cffi\api.py", line 802, in _make_ffi_library
    backendlib = _load_backend_lib(backend, libname, flags)
  File "C:\Users\dougwood\AppData\Roaming\Python\Python37\site-packages\cffi\api.py", line 798, in _load_backend_lib
    return backend.load_library(path, flags)
OSError: cannot load library 'C:\dev\vips\vips-dev-8.6\bin\libgobject-2.0-0.dll': error 0xc1

C:\Users\dougwood>dir c:\dev\vips\vips-dev-8.6\bin\libgobject*.*
 Volume in drive C has no label.
 Volume Serial Number is 5A36-DDB8

 Directory of c:\dev\vips\vips-dev-8.6\bin

07/25/18  10:35 AM           604,659 libgobject-2.0-0.dll
               1 File(s)        604,659 bytes
               0 Dir(s)  165,722,181,632 bytes free

C:\Users\dougwood>

C:\Program Files\Python36\Scripts>python
Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:54:40) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import logging
>>> logging.basicConfig(level=logging.DEBUG)
>>> import pyvips
DEBUG:pyvips:Binary module load failed: No module named '_libvips'
DEBUG:pyvips:Falling back to ABI mode
DEBUG:pyvips:Loaded lib <cffi.api._make_ffi_library.<locals>.FFILibrary object at 0x000001A4FF62ACF8>
DEBUG:pyvips:Loaded lib <cffi.api._make_ffi_library.<locals>.FFILibrary object at 0x000001A4FF6155C0>
DEBUG:pyvips:Inited libvips
DEBUG:pyvips: