(一)问题描述
Centos7 安装python-igraph时,pip install python-igraph 报错,C core of igraph 没有安装。
failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try. Cannot find the C core of igraph on this system using pkg-config. We will now try to download and compile the C core from scratch. Version number of the C core: 0.7.1.post6 We will also try: 0.7.1 Version 0.7.1.post6 of the C core of igraph is not found among the nightly builds. Use the --c-core-version switch to try a different version. Could not download and compile the C core of igraph.
(二)解决办法
网上的方法都试过,搞了好几天,焦头烂额,也没有整出来。最后看了源码。才知道它安装的时候,会下载igraph。也就是C core。具体解决方法:
1. 下载:igraph-0.7.1.tar
2. 解压:tar -zxvf igraph-0.7.1.tar.gz
3.安装:
./configure make make install
4. 在安装pip install python-igraph,命令如下:
pip install -v python-igraph --install-option="--c-core-url=【igraph路径】/igraph-0.7.1.tar.gz" pip install -v python-igraph --install-option="--c-core-url=http://127.0.0.1/imagedeps/igraph-0.7.1.tar.gz"
本文解决Centos7环境下使用pip安装python-igraph遇到Ccore未找到的问题,提供详细步骤,包括下载igraph源码包、解压、配置、编译、安装,以及指定Ccore路径进行python-igraph安装。

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