安装失败

[lichanghong]

bash-3.2$ pip install scan-build DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support Collecting scan-build Using cached https://files.pythonhosted.org/packages/93/03/f012b6a20a6c8fcac54ebe985fc137d4e899e3b997881445bf69e4277384/scan-build-2.0.17.tar.gz ERROR: Command errored out with exit status 1: command: /usr/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/m0/b678jj2gjcgfxlbjmzmsm80000gn/T/pip-install-CK9HO0/scan-build/setup.py'"'"'; file='"'"'/private/var/folders/m0/b678jj2gjcgfxlbjmzmsm80000gn/T/pip-install-CK9HO0/scan-build/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /private/var/folders/m0/b678jj2gjcgfxlbjmzmsm80000gn/T/pip-install-CK9HO0/scan-build/pip-egg-info cwd: /private/var/folders/m0/b678jj2gjcgfxlbjmzmsm80000gn/T/pip-install-CK9HO0/scan-build/ Complete output (1 lines): error in scan-build setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected version spec in typing; python_version < "3.5" at ; python_version < "3.5"

ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

[rizsotto]

How can I help? If you open this ticket in order to get help, please provide more context.

See issue template what details are helpful to investigate.

[lichanghong]

How can I help? If you open this ticket in order to get help, please provide more context.

See issue template what details are helpful to investigate.

Mac version is the newest, and i installed pip, as the method pip install scan-build, I got an error.

[rizsotto]

Thanks to come back... So, you are not running the tool, but trying to install it? Have you check which Python version you have, as the error message suggested? Do you have virtualenv or virtualenvwrapper installed? (That might help to run different version of Python installed and used on the same machine.)