>>> import gizeh
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    import gizeh
  File "C:\Python36-32\lib\site-packages\gizeh\__init__.py", line 5, in <module>
    from .gizeh import *
  File "C:\Python36-32\lib\site-packages\gizeh\gizeh.py", line 4, in <module>
    import cairocffi as cairo
  File "C:\Python36-32\lib\site-packages\cairocffi\__init__.py", line 41, in <module>
    cairo = dlopen(ffi, 'cairo', 'cairo-2')
  File "C:\Python36-32\lib\site-packages\cairocffi\__init__.py", line 38, in dlopen
    raise OSError("dlopen() failed to load a library: %s" % ' / '.join(names))
OSError: dlopen() failed to load a library: cairo / cairo-2
>>> 

python -m pip install cairocffi

python -m pip install cffi