尝试运行 Python 包时权限被拒绝

Question

我正在尝试在 AWS EC2 机器上使用名为 csvkit 的 Python 包。在遇到一些小问题后我能够安装它，这可能是相关的 - 运行 pip install csvkit 在

处引发错误

with open(path, 'rb') as stream:
    IOERROR: [Errno 13] Permission denied: '/usr/local/lib/python2.7/site-packages/python_dateutil-2.2-py2.7.egg/EGG-INFO/requires.txt'

但我可以使用其他命令安装它。

现在回到最初的问题 - 当我尝试在 csvkit 包中运行一个简单的函数（如 cavstat）时，这是完整的错误输出：

[username ~]$ csvstat
Traceback (most recent call last):
  File "/usr/local/bin/csvstat", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 3020, in <module>
    working_set = WorkingSet._build_master()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 614, in _build_master
    ws.require(__requires__)
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 920, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 815, in resolve
    new_requirements = dist.requires(req.extras)[::-1]
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2552, in requires
    dm = self._dep_map
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2537, in _dep_map
    for extra, reqs in split_sections(self._get_metadata(name)):
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2978, in split_sections
    for line in yield_lines(s):
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2252, in yield_lines
    for ss in strs:
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2566, in _get_metadata
    for line in self.get_metadata_lines(name):
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1589, in get_metadata_lines
    return yield_lines(self.get_metadata(name))
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1581, in get_metadata
    return self._get(self._fn(self.egg_info, name))
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1692, in _get
    with open(path, 'rb') as stream:
IOError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/site-packages/python_dateutil-2.2-py2.7.egg/EGG-INFO/requires.txt'

我什至不确定要搜索什么来查看问题所在。这与date-utils 有关吗？ 我是 Linux 世界的新手，所以编辑配置文件和诸如此类的东西对我来说有点困难。

Answer 1

如果您通过“pip install csvkit”进行系统范围的安装，您需要当前用户的 sudo 权限，这就是安装过程无法修改 /usr/local/lib/python2 的原因.7 结构。

如果您使用的是自己创建的 AWS 实例，那么为当前用户设置 sudo 权限应该非常简单。

如果您正在寻找一个包含更多内容的替代方案，您可以安装 virtualenv 并设置一个隔离的 virtualenv (https://virtualenv.pypa.io/en/latest/installation.html)，但 virtualenv 对于一次性服务器来说可能是多余的。

这有帮助吗？