我在以物理机器运行的centos7中安装devstack。我遇到了问题＆＃34; Command＆＃34; python setup.py egg_info＆＃34;失败，错误代码为1＆＃34;。日志太长，无法发布所有内容。所以我只是发布了密钥。
2017-11-12 14:03:33.612 | Downloading pyperclip-1.5.27.zip
2017-11-12 14:03:33.909 | Complete output from command python setup.py egg_info:
2017-11-12 14:03:33.909 | No protocol specified
2017-11-12 14:03:33.909 | Traceback (most recent call last):
2017-11-12 14:03:33.909 | File "<string>", line 1, in <module>
2017-11-12 14:03:33.909 | File "/tmp/pip-build-a6kle5/pyperclip/setup.py", line 8, in <module>
2017-11-12 14:03:33.909 | version=__import__('pyperclip').__version__,
2017-11-12 14:03:33.909 | File "pyperclip/__init__.py", line 101, in <module>
2017-11-12 14:03:33.909 | copy, paste = determine_clipboard()
2017-11-12 14:03:33.909 | File "pyperclip/__init__.py", line 63, in determine_clipboard
2017-11-12 14:03:33.909 | import gtk # check if gtk is installed
2017-11-12 14:03:33.909 | File "/usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py", line 64, in <module>
2017-11-12 14:03:33.909 | _init()
2017-11-12 14:03:33.909 | File "/usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py", line 52, in _init
2017-11-12 14:03:33.909 | _gtk.init_check()
2017-11-12 14:03:33.909 | RuntimeError: could not open display
2017-11-12 14:03:33.909 |
2017-11-12 14:03:33.909 | ----------------------------------------
2017-11-12 14:03:34.097 | Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-a6kle5/pyperclip/
2017-11-12 14:03:34.297 | +inc/python:pip_install:1 exit_trap
2017-11-12 14:03:34.300 | +./stack.sh:exit_trap:493 local r=1
2017-11-12 14:03:34.302 | ++./stack.sh:exit_trap:494 jobs -p
2017-11-12 14:03:34.305 | +./stack.sh:exit_trap:494 jobs=
2017-11-12 14:03:34.307 | +./stack.sh:exit_trap:497 [[ -n '' ]]
2017-11-12 14:03:34.310 | +./stack.sh:exit_trap:503 '[' -f '' ']'
2017-11-12 14:03:34.313 | +./stack.sh:exit_trap:508 kill_spinner
2017-11-12 14:03:34.315 | +./stack.sh:kill_spinner:407 '[' '!' -z '' ']'
2017-11-12 14:03:34.318 | +./stack.sh:exit_trap:510 [[ 1 -ne 0 ]]
2017-11-12 14:03:34.320 | +./stack.sh:exit_trap:511 echo 'Error on exit'
2017-11-12 14:03:34.320 | Error on exit
我不知道如何处理它。有些人有想法吗？ 非常感谢。