Python pip错误“；ValueError:（'；缺少分发规范'；，'；=='；）”；在ubuntu服务器上安装熊猫时

嗨，我刚开始玩服务器，我应该用python运行这个简单的脚本。但是，此脚本具有依赖项，即包，如pandas

所以我决定执行

pip install pandas==0.14.0

，但我一直收到一条错误消息：

Exception:
Traceback (most recent call last):
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/basecomm
    status = self.run(options, args)
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/commands
    InstallRequirement.from_line(name, None))
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/req.py",
    return cls(req, comes_from, url=url, prereleases=prereleases)
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/req.py",
    req = pkg_resources.Requirement.parse(req)
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/_vendor/
    reqs = list(parse_requirements(s))
  File "/root/.virtualenvs/occupy/local/lib/python2.7/site-packages/pip/_vendor/
    raise ValueError("Missing distribution spec", line)
ValueError: ('Missing distribution spec', '==')

Storing debug log for failure in /root/.pip/pip.log

我不知道为什么

---

有人能解释一下吗？

应该没有空格

pip安装pandas==0.14.0#