OSError importing python-igraph答案

【问题标题】：OSError importing python-igraphOSError importing python-igraph
【发布时间】：2018-01-05 20:32:47
【问题描述】：

我正在尝试导入 igraph，但它不断向我抛出此错误：

>>> 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

我曾尝试关注this guide 安装cairo，但它会引发此错误并且无法解决igraph 导入问题：error: mandatory image surface backend feature could not be enabled
我也尝试安装pycairo，但结果是no module founds: cairo，这让我又回到了原点。
我尝试按照https://cairographics.org/download/ 指令运行sudo port install cairo。但这会导致Error: Port cairo not found

我的系统配置：

MacOS High Sierra 10.13.1
Python 3.6
python-igraph 0.7.1

我不知道可能是什么问题。任何帮助将不胜感激。谢谢你:)

【问题讨论】：

我认为您尝试了您发布的指南中给出的解决方案，其中明确提到了error: mandatory image surface backend feature could not be enabled 以及如何解决它？
@roganjosh 是的，它没有帮助
你试过用自制软件安装 igraph 然后pip install python-igraph 吗？它在official guide for mac os 中描述

标签： python igraph cairo pycairo

【解决方案1】：

感谢@Aiven，我设法解决了我的问题。如果有人遇到同样的问题，这对我来说已经成功了：

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

【讨论】：