virtualenv -p python3 venv报错

在阿里云服务器上,用virtualenv创建虚拟环境时,报了个错误

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root@iZwz982qla1uxm1s5dnyo7Z:/usr/lib/python3/dist-packages/virtualenv-15.0.1.egg-info# virtualenv -p python3 venv
Running virtualenv with interpreter /usr/bin/python2
New python executable in /usr/lib/python3/dist-packages/virtualenv-15.0.1.egg-info/venv/bin/python2
Not overwriting existing python script /usr/lib/python3/dist-packages/virtualenv-15.0.1.egg-info/venv/bin/python (you must use /usr/lib/python3/dist-packages/virtualenv-15.0.1.egg-info/venv/bin/python2)
Please make sure you remove any previous custom paths from your /root/.pydistutils.cfg file.
1 [global]
Installing setuptools, pkg_resources, pip, wheel...
Complete output from command /usr/lib/python3/dis...nfo/venv/bin/python2 - setuptools pkg_resources pip wheel:
Collecting setuptools
Downloading http://mirrors.aliyun.com/pypi/packages/ff/f4/385715ccc461885f3cedf57a41ae3c12b5fec3f35cce4c8706b1a112a133/setuptools-40.0.0-py2.py3-none-any.whl (567kB)
Collecting pkg_resources
Exception:
Traceback (most recent call last):
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/basecommand.py", line 209, in main
status = self.run(options, args)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/commands/install.py", line 328, in run
wb.build(autobuilding=True)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/wheel.py", line 748, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/req/req_set.py", line 360, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/req/req_set.py", line 512, in _prepare_file
finder, self.upgrade, require_hashes)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/req/req_install.py", line 273, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/index.py", line 442, in find_requirement
all_candidates = self.find_all_candidates(req.name)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/index.py", line 400, in find_all_candidates
for page in self._get_pages(url_locations, project_name):
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/index.py", line 545, in _get_pages
page = self._get_page(location)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/index.py", line 648, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/share/python-wheels/pip-8.1.1-py2.py3-none-any.whl/pip/index.py", line 760, in get_page
resp.raise_for_status()
File "/usr/lib/python3/dist-packages/virtualenv-15.0.1.egg-info/venv/share/python-wheels/requests-2.9.1-py2.py3-none-any.whl/requests/models.py", line 840, in raise_for_status
raise HTTPError(http_error_msg, response=self)
HTTPError: 404 Client Error: Not Found for url: http://mirrors.aliyun.com/pypi/simple/pkg-resources/
----------------------------------------
...Installing setuptools, pkg_resources, pip, wheel...done.
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/virtualenv.py", line 2363, in <module>
main()
File "/usr/lib/python3/dist-packages/virtualenv.py", line 719, in main
symlink=options.symlink)
File "/usr/lib/python3/dist-packages/virtualenv.py", line 988, in create_environment
download=download,
File "/usr/lib/python3/dist-packages/virtualenv.py", line 918, in install_wheel
call_subprocess(cmd, show_stdout=False, extra_env=env, stdin=SCRIPT)
File "/usr/lib/python3/dist-packages/virtualenv.py", line 812, in call_subprocess
% (cmd_desc, proc.returncode))
OSError: Command /usr/lib/python3/dis...nfo/venv/bin/python2 - setuptools pkg_resources pip wheel failed with error code 2

看到HTTPError: 404 Client Error: Not Found for url: http://mirrors.aliyun.com/pypi/simple/pkg-resources/以为是阿里云的安全组配置没配好,折腾了半天,原来是访问PyPI镜像源出了问题,将pip的默认的源地址改为国内源即可。具体操作如下:

vim ~/.pip/pip.conf打开pip配置文件:

写入

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[global]
index-url = http://e.pypi.python.org/simple

以下这几个国内源都可以

e.pypi.python.org

pypi.douban.com

pypi.hustunique.com