Question

当我运行pip install fasteners时，它会显示

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: fasteners in ./.local/lib/python3.6/site-packages (0.15)
Requirement already satisfied: six in ./.local/lib/python3.6/site-packages (from fasteners) (1.15.0)
Requirement already satisfied: monotonic>=0.1 in ./.local/lib/python3.6/site-packages (from fasteners) (1.5)

该软件包安装在 ./.local/lib/python3.6/site-packages 中。

但是我想将其安装在/usr/bin/python2/site-packages中，

因为duplicity使用python2。并且在运行duplicity --version时出现could not import fasteners错误

Answer 1

尝试以下命令为Python 2.7安装紧固件：

sudo python2.7 -m pip install fasteners

如果遇到No module named pip错误，请尝试：

sudo python2.7 -m ensurepip --default-pip

然后尝试再次安装紧固件。

Answer 2

正如您在@Nathan Mills的答案的评论部分中所共享的那样，您遇到SSL错误。我认为您缺少某些库。请尝试通过安装下面的库，然后使用您使用的命令再试一次。

sudo apt-get install build-essential checkinstall 
sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev

然后：

sudo python2.7 -m pip install fasteners

尝试：

sudo python2.7 -m pip install --index-url=http://pypi.python.org/simple/ fasteners

如何在特定python安装的站点包中通过pip安装python包？

2 个答案: