安装/升级到 python 3.4.3 时出错

Question

我试图从 python 3.2 安装/升级到 3.4.3，但是很多事情都出错了。现在，即使我

apt-get install python3

我得到错误。这是终端输出

Setting up python-requests (0.8.2-1) ...
/var/lib/dpkg/info/python-requests.postinst: 6: /var/lib/dpkg/info/python-requests.postinst: pycompile: not found
dpkg: error processing python-requests (--configure):
 subprocess installed post-installation script returned error exit status 127
Setting up python-gevent (0.13.6-1ubuntu1) ...
/var/lib/dpkg/info/python-gevent.postinst: 6: /var/lib/dpkg/info/python-gevent.postinst: pycompile: not found
dpkg: error processing python-gevent (--configure):
 subprocess installed post-installation script returned error exit status 127
Setting up python-qrencode (1.01-2build1) ...
/var/lib/dpkg/info/python-qrencode.postinst: 5: /var/lib/dpkg/info/python-qrencode.postinst: update-python-modules: not found
dpkg: error processing python-qrencode (--configure):
 subprocess installed post-installation script returned error exit status 127
Errors were encountered while processing:
 python-requests
 python-gevent
 python-qrencode
E: Sub-process /usr/bin/dpkg returned an error code (1)

请帮我解决这个问题。

Answer 1

我不小心删除了/usr/bin/ 中的python3.6。当我重新安装它时，我收到了类似的错误消息。

然后我尝试了以下命令并安装了python3.6：

sudo apt-get remove --purge python3.6
sudo apt-get install -f --reinstall python3.6-minimal

我也试过sudo apt-get install -f --reinstall python-minimal，但没用。

希望我的经验对处于类似情况的人有所帮助。

Answer 2

尝试sudo apt-get remove --purge python3 && sudo apt-get update && sudo apt-get install python3 以（可能）回到“干净”状态。之后检查python3 --version，你可能会幸运地得到python 3.4！