系统中同时有 python2和 python3，怎么让 ipython 选择不一样的版本启动？

已经安装的状况下： > which ipython /usr/local/bin/ipython > cat /usr/local/bin/ipython  #!/usr/local/opt/python/bin/python2.7 # -*- coding: utf-8 -*-import reimport sysfrom IPython  import start_ipython if __n

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