我在CentOS7上通过pip设置pyparser时看到以下错误/usr/bin/python2-u-c"importsetuptools,tokenize;__file__='/tmp/pip-build-PMzCYU/pycparser/setup.py';exec(compile(getattr(tokenize,'open',open)(__file__).read().replace('\r\n','\n'),__file__,'exec'))"install--record/tmp/pip-0bpBrX-record/install-record.txt--single-v