安装Shapely：OSError：[WinError 126]找不到指定的模块

我必须安装Shapely包( http://toblerity.org/shapely/project.html#installation). 
但是当我使用时：

pip install Shapely

我收到此错误：

Collecting Shapely
  Using cached Shapely-1.5.17.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "", line 1, in 
      File "C:\Users\AppData\Local\Temp\pip-build-mwuxcain\Shapely\setup.py", line 38, in 
        from shapely._buildcfg import geos_version_string, geos_version, \
      File "C:\Users\AppData\Local\Temp\pip-build-mwuxcain\Shapely\shapely\_buildcfg.py", line 200, in 
        lgeos = CDLL("geos.dll")
      File "C:\Users\Anaconda3\lib\ctypes\__init__.py", line 344, in __init__
        self._handle = _dlopen(self._name, mode)
    OSError: [WinError 126] The specified module could not be found

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in C:\Users\AppData\Local\Temp\pip-build-mwuxcain\Shapely\

而且,当我使用时：

conda install shapely

我收到此错误：

Fetching package metadata ...........

PackageNotFoundError: Package not found: Conda could not find '

我在Windows 10(64位)上使用Python 3.6.0(Anaconda3).

请帮忙. (没什么作用)

使用 http://www.lfd.uci.edu/~gohlke/pythonlibs/#shapely下载WHL文件

安装：

python -m pip install Shapely-1.5.17-cp36-cp36m-win_amd64.whl

Ubuntu的：

pip install shapely==1.6b2