macos - 如何将 cassandra-driver 放到 PYTHONPATH 上？

Question

我正在尝试使用 Datomic 设置 Cassandra，当我运行命令 cqlsh -f ~/datomic/bin/cql/cassandra-user.cql -u uname -p pword 时，我得到一个错误提示

Python: /System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
Module load path: [
'/usr/local/Cellar/cassandra/2.1.2/bin', 
'/Library/Python/2.7/site-packages/cql-1.4.0-py2.7.egg', 
'/Library/Python/2.7/site-packages/thrift-0.9.2-py2.7-macosx-10.10-intel.egg',
'/Library/Python/2.7/site-packages/ccm-2.0.2-py2.7.egg',
'/Library/Python/2.7/site-packages/tailer-0.3-py2.7.egg', 
'/Library/Python/2.7/site-packages', '/Library/Python/2.7/site-packages/psutil-2.2.0-py2.7-macosx-10.10-intel.egg', 
'/Library/Python/2.7/site-packages/pip-6.0.6-py2.7.egg', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', 
'/Library/Python/2.7/site-packages']

Error: No module named cassandra

我已经使用 pip install cassandra-driver 安装了驱动程序，并尝试使用 export PYTHONPATH=$PYTHONPATH:/usr/local/将驱动程序所在的路径放在我的 PYTHONPATH 上lib/python2.7/site-packages。我什至已将驱动程序复制到路径中已列出的目录之一中。没有运气。有人可以帮助我克服这个障碍吗？

Cassandra 与自制程序一起安装在此处 /usr/local/Cellar/cassandra/2.1.2/

Datomic 在这里 ~/datomic

cassandra 驱动程序在这里 /usr/local/lib/python2.7/site-packages

Answer 1

看起来您正在尝试使用 mac 系统 python 发行版，是吗？虽然这没有什么问题，但建议不要理会系统发行版，并使用 brew install python 安装单独的 python。然后尝试使用pip install cql安装cqlsh，同时确保使用brew pip版本(检查使用which pip ->应该指向/usr/local)。