导入的OSError

Question

我正在尝试导入igraph，但它一直向我抛出这个错误：

>>> import igraph

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/site-packages/igraph/__init__.py", 
line 36, in <module>
    from igraph.clustering import *
  File "/usr/local/lib/python3.6/site-packages/igraph/clustering.py", 
line 36, in <module>
    from igraph.drawing.colors import ClusterColoringPalette
  File "/usr/local/lib/python3.6/site-
packages/igraph/drawing/__init__.py", line 27, in <module>
    from igraph.drawing.graph import DefaultGraphDrawer
  File "/usr/local/lib/python3.6/site-
packages/igraph/drawing/graph.py", line 27, in <module>
    from igraph.drawing.edge import ArrowEdgeDrawer
  File "/usr/local/lib/python3.6/site-packages/igraph/drawing/edge.py", 
line 17, in <module>
    cairo = find_cairo()
  File "/usr/local/lib/python3.6/site-
packages/igraph/drawing/utils.py", line 413, in find_cairo
    module = __import__(module_name)
  File "/usr/local/lib/python3.6/site-packages/cairocffi/__init__.py", 
line 41, in <module>
    cairo = dlopen(ffi, 'cairo', 'cairo-2')
  File "/usr/local/lib/python3.6/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

1. 我尝试遵循本指南安装cairo，但是它引发了这个错误，并且没有解决igraph导入问题：error: mandatory image surface backend feature could not be enabled
2. 我也尝试过安装pycairo，但这导致了no module founds: cairo，这使我回到了起点。
3. 我试着按照sudo port install cairo指令运行https://cairographics.org/download/。但这会导致Error: Port cairo not found

我的sys配置：

• MacOS高塞拉10.13.1
• Python 3.6
• Python-iGraph0.7.1

我不知道这个问题是什么。任何帮助都将不胜感激。谢谢您:)

Answer 1

多亏了@Aiven，我终于解决了我的问题。如果有谁遇到过同样的问题，这对我来说是有好处的：

brew install cairo
brew install py2cairo
brew install igraph  (install C-core)
sudo pip install python-igraph (install igraph for python)