我正在尝试在 pycharm 上运行一个 pykml 项目。我已经在 OS X 上使用 easy_install 命令安装了 pykml 和 xmlml 包。但是这些行
from lxml import etree
from pykml.parser import Schema
from pykml.factory import KML_ElementMaker as KML
from pykml.factory import GX_ElementMaker as GX
产生"Unresolved reference" error.
我很肯定我成功安装了lxml和pykml。任何帮助将不胜感激