导入pandas、python 2.7、pip 19.1.1时出现问题

我在Mac上使用Python2.7，无法安装pandas。如果我激活Conda base环境，则pandas可以正常工作，但在其他方面则不行

我试过：

pip install pandas  
pip2 install pandas  
sudo pip install pandas  
pip easy_install pandas  

我尝试

pip安装pandas

时的确切错误如下所示：

错误：由于环境错误而无法安装程序包：[（'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/parser.pyc'，'/private/var/folders/ll/2W2BYPWJ1R72871BD71CJ330000GN/T/pip卸载EPDiEt/parser.pyc'，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/parser.pyc”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/relativedelta.py”“，“/private/var/folders/ll/2w2w2bypwj1bwj1rd71cj330000gn/T/T/pip uninstall EPDiEt/relativedelta.py”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/relativedelta.py”，（'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/zoneinfo/zoneinfo-2010g.tar.gz'，'/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/zoneinfo/zoneinfo-2010g.tar.gz'，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/zoneinfo/zoneinfo-2010g.tar.gz”，（'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/zoneinfo/init.py'，'/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/zoneinfo/init.py'，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/zoneinfo/init.py'”，（'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/zoneinfo/init.pyc'，'/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip卸载EPDiEt/zoneinfo/init.pyc'，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/zoneinfo/init.pyc'”，（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/zoneinfo'，”/private/var/folders/ll/2w2bypwj1bwj1bwj72871bd71cj330000gn/T/T/pip uninstall EPDiEt/zoneinfo'，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/zoneinfo”，（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/tz.py”，“/private/var/folders/ll/2w2w2bypwj1bwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/tz.py”，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/tz.py”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/relativedelta.pyc”“，“/private/var/folders/ll/2w2w2bypwj1bwj1rd71cj330000gn/T/T/pip uninstall EPDiEt/relativelta.pyc”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/relativedelta.pyc”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/rrule.pyc”“，“/private/var/folders/ll/2w2w2bypwj1bwj1rd71cj330000gn/T/pip uninstall EPDiEt/rrule/rrule.pyc”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/rrule.pyc”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/init.py”“，“/private/var/folders/ll/2w2w2bypwj1bj72871bd71cj330000gn/T/pip uninstall EPDiEt/initinit.py”“，”，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/initpy'”（“/System/Library/Frameworks/Python.Frameworks/Frameworks/Frameworks/Extras/lib/Python/dateutil/parser.py”，“/private/var/folders/ll/2w2w2bypwj1bwj1bd71cj330000gn/T/pip uninstall EPDiEt/parser.py”，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/parser.py”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/tzwin.py”“，“/private/var/folders/ll/2w2w2bypwj1bwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/tzwin.py”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/tzwin.py”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/rrule.py”“，“/private/var/folders/ll/2w2w2bypwj1bwj1rd71cj330000gn/T/T uninstall EPDiEt/rrule/rrule.py”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/rrule.py”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/init.pyc”“，“/private/var/folders/ll/2w2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/initinit.pyc”“，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/initpyc”“，（“/System/Library/Frameworks/Python.Frameworks/Versions/2.7/Extras/lib/Python/dateutil/easter.py”“，”/private/var/folders/ll/2w2w2bypwj1bwj72871bd71cj330000gn/T/T/pip uninstall EPDiEt/复活节.py”“，“[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/easter.py”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/easter.pyc”“，“/private/var/folders/ll/2w2w2bypwj1bwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/easter.pyc”“，”[Errno 1]不允许操作：“/private/var/folders/ll/2w2bypwj1r72871bd71cj330000gn/T/pip uninstall EPDiEt/easter.pyc”“，”（“/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/Python/dateutil/tz.pyc”“，“/private/var/folders/ll/2w2w2bypwj1bwj1br72871bd71cj330000gn/T/T/pip uninstall EPDiEt/tz.pyc”“，”，“[Errno 1]