Question

我正在安装一些软件包，之后pip不再起作用了。即使我尝试了一些命令如：sudo pip show requets我也会收到此错误。

Traceback (most recent call last):
  File "/usr/local/bin/pip", line 7, in <module>
    from pip import main
  File "/usr/local/lib/python3.5/dist-packages/pip/__init__.py", line 28, in <module>
    from pip.vcs import git, mercurial, subversion, bazaar  # noqa
  File "/usr/local/lib/python3.5/dist-packages/pip/vcs/subversion.py", line 9, in <module>
    from pip.index import Link
  File "/usr/local/lib/python3.5/dist-packages/pip/index.py", line 31, in <module>
    from pip.wheel import Wheel, wheel_ext
  File "/usr/local/lib/python3.5/dist-packages/pip/wheel.py", line 6, in <module>
    import compileall
  File "/usr/lib/python3.5/compileall.py", line 20, in <module>
    from concurrent.futures import ProcessPoolExecutor
  File "/usr/local/lib/python3.5/dist-packages/futures-3.1.1-py3.5.egg/concurrent/futures/__init__.py", line 8, in <module>
    from concurrent.futures._base import (FIRST_COMPLETED,
  File "/usr/local/lib/python3.5/dist-packages/futures-3.1.1-py3.5.egg/concurrent/futures/_base.py", line 381
    raise exception_type, self._exception, self._traceback
                        ^
SyntaxError: invalid syntax

非常感谢！

Answer 1

您似乎已在python3.5上安装了futures包。

这是python3.2 +包的仅python2后端。您需要删除/usr/local/lib/python3.5/dist-packages/futures-3.1.1-py3.5.egg然后它应该再次运行。你不需要在python3.5上使用它，它已经包含在标准库中了。

Answer 2

看起来您的点数已损坏，您可以使用pip --version检查点数版本，也许将pip升级到最新版本可能会解决您的问题，只需尝试 sudo pip install --upgrade pip，现在检查点数版本，如果仍显示旧版本，请尝试使用ln -s /usr/local/bin/pip /usr/bin/重新创建simlink

Answer 3

如果没有其他方法适合您，您应该尝试重新安装pip。执行以下操作：

sudo apt-get install --reinstall python2.7

sudo apt-get purge python-pip

wget https://raw.github.com/pypa/pip/master/contrib/get-pip.py

sudo python get-pip.py

那应该有用。完成后，运行pip --version并发布结果。

Ubuntu 16.04点差不多了

3 个答案: