如何在 Ubuntu16.04 上为 python3 安装 Psycopg2

Question

我有运行 sudo apt-get install python3-dev 和最新的 pip。

但是当我运行 pip install psycopg2 时，我得到了这个错误：

Collecting psycopg2
  Using cached psycopg2-2.7.1-cp27-cp27mu-manylinux1_x86_64.whl
Installing collected packages: psycopg2
Exception:
Traceback (most recent call last):
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/req/req_set.py", line 784, in install
    **kwargs
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 851, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 1064, in move_wheel_files
    isolated=self.isolated,
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/wheel.py", line 345, in move_wheel_files
    clobber(source, lib_dir, True)
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/wheel.py", line 316, in clobber
    ensure_dir(destdir)
  File "/home/flint1025/.local/lib/python2.7/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
    os.makedirs(path)
  File "/usr/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/psycopg2-2.7.1.dist-info'

然后经过搜索，一些解决方案表明我应该更改目录的所有权。所以我尝试了 chown -R flint1025:27 /usr/local/lib/python2.7/dist-packages/psycopg2-2.7.1.dist-info 但得到了这个错误：

chown: cannot access '/usr/local/lib/python2.7/dist-packages/psycopg2-2.7.1.dist-info': No such file or directory

接下来我该做什么？

Answer 1

好像你没有安装在 virtualenv，所以你必须使用：sudo pip install psycopg2

Installing package without using virtual environment you need root permissions.

如何在 Ubuntu16.04 上为 python3 安装 Psycopg2

How to install Psycopg2 for python3 on Ubuntu16.04

python

pip

ubuntu-16.04