想请教下下QPython 3C上的Jupyter支持安装插件吗，如果支持的话怎么安装呢
还有我自己尝试安装的时候，pip下载完jupyter_nbextensions_configurator跟jupyter_contrib_nbextensions之后在shell终端里输入jupyter nbextensions_configurator enable --user提示我/system/bin/sh:jupyter: can't execute: Permission denied是怎么回事呢