Python：Invalid environment marker：python_version<2.7问题解决方案
2017-12-22 19:14
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依赖信息：
操作系统：CentOS 7
Python：2.7.12
当用pip 或者easy_install 命令安装相关依赖的时候，报如下错误：
Invalid environment marker：python_version<2.7
可是当前系统的python版本命名是2.7的，所以很是诡异。
最后排查才发现，是因为系统中setuptools的版本过低，导致无法识别到本机安装的python。
解决办法：
升级setuptools，即可；命令如下：
pip install --upgrade setuptools -i http://pypi.mirrors.ustc.edu.cn/simple
操作系统：CentOS 7
Python：2.7.12
当用pip 或者easy_install 命令安装相关依赖的时候，报如下错误：
Invalid environment marker：python_version<2.7
可是当前系统的python版本命名是2.7的，所以很是诡异。
最后排查才发现，是因为系统中setuptools的版本过低，导致无法识别到本机安装的python。
解决办法：
升级setuptools，即可；命令如下：
pip install --upgrade setuptools -i http://pypi.mirrors.ustc.edu.cn/simple
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