我正在尝试为Python安装Scrapy模块。我正在使用命令：

pip install Scrapy

但是我收到以下错误：

Command "/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools, tokenize;__file__='/private/var/folders/b4/nrmj5jf105lcv1_kf1yk9gh40000gn/T/pip-build-aNQoXA/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/b4/nrmj5jf105lcv1_kf1yk9gh40000gn/T/pip-B_akAd-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/b4/nrmj5jf105lcv1_kf1yk9gh40000gn/T/pip-build-aNQoXA/lxml

我对此进行了一些研究，并在此处和此处尝试了几种不同的解决方案，但均无济于事。