我正在尝试在我的环境中安装 python3（和 python2），但我一直收到以下问题：
sudo apt-get install python3
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
python3 is already the newest version (3.10.6-1~22.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up python3-minimal (3.10.6-1~22.04) ...
/var/lib/dpkg/info/python3-minimal.postinst: 5: py3compile: not found
dpkg: error processing package python3-minimal (--configure):
installed python3-minimal package post-installation script subprocess returned error exit status 127
Setting up language-selector-gnome (0.219) ...
/var/lib/dpkg/info/language-selector-gnome.postinst: 6: py3compile: not found
dpkg: error processing package language-selector-gnome (--configure):
installed language-selector-gnome package post-installation script subprocess returned error exit status 127
Errors were encountered while processing:
python3-minimal
language-selector-gnome
E: Sub-process /usr/bin/dpkg returned an error code (1)
我尝试用不同的方法修复这个问题，但每次都遇到同样的问题。感谢您的帮助。
编辑：我运行了命令
sudo apt remove python3
尝试删除 python3 但出现以下错误：
The following NEW packages will be installed:
libqt5gui5-gles libqt5quick5-gles
0 upgraded, 2 newly installed, 217 to remove and 0 not upgraded.
3 not fully installed or removed.
Need to get 0 B/5,427 kB of archives.
After this operation, 276 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 261970 files and directories currently installed.)
Removing language-selector-gnome (0.219) ...
/var/lib/dpkg/info/language-selector-gnome.prerm: 6: py3clean: not found
dpkg: error processing package language-selector-gnome (--remove):
installed language-selector-gnome package pre-removal script subprocess returne
d error exit status 127
/var/lib/dpkg/info/language-selector-gnome.postinst: 6: py3compile: not found
dpkg: error while cleaning up:
installed language-selector-gnome package post-installation script subprocess r
eturned error exit status 127
Removing python3-commandnotfound (22.04.0) ...
/var/lib/dpkg/info/python3-commandnotfound.prerm: 6: py3clean: not found
dpkg: error processing package python3-commandnotfound (--remove):
installed python3-commandnotfound package pre-removal script subprocess returne
d error exit status 127
dpkg: too many errors, stopping
Errors were encountered while processing:
language-selector-gnome
python3-commandnotfound
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)
编辑 2：尝试通过以下方式安装 python3.10-minimal：
sudo apt-get install python3.10-minimal
并收到以下错误：
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
python3.10-minimal is already the newest version (3.10.6-1~22.04.2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up python3-commandnotfound (22.04.0) ...
/var/lib/dpkg/info/python3-commandnotfound.postinst: 6: py3compile: not found
dpkg: error processing package python3-commandnotfound (--configure):
installed python3-commandnotfound package post-installation script subprocess returned error exit status 127
Setting up python3-minimal (3.10.6-1~22.04) ...
/var/lib/dpkg/info/python3-minimal.postinst: 5: py3compile: not found
dpkg: error processing package python3-minimal (--configure):
installed python3-minimal package post-installation script subprocess returned error exit status 127
Setting up language-selector-gnome (0.219) ...
/var/lib/dpkg/info/language-selector-gnome.postinst: 6: py3compile: not found
dpkg: error processing package language-selector-gnome (--configure):
installed language-selector-gnome package post-installation script subprocess returned error exit status 127
Errors were encountered while processing:
python3-commandnotfound
python3-minimal
language-selector-gnome
E: Sub-process /usr/bin/dpkg returned an error code (1)
答案1
当你逐行阅读原始错误消息时，你会发现这些行。所有其他错误——不管怎样——都是从这个原始错误中产生的：
Setting up python3-minimal (3.10.6-1~22.04) ...
/var/lib/dpkg/info/python3-minimal.postinst: 5: py3compile: not found
这里的关键是py3compile: not found。该py3compile模块由 22.04 版软件包提供python3.10-minimal。
- 软件包
python3.xx-minimal名称随 Ubuntu 的不同版本而变化。通过查看依赖项找到适合您的 Ubuntu 版本的软件包python3-minimal
修复该问题需要两个步骤。
安装（或重新安装）你的
python3.xx-minimal软件包
sudo apt install python3.10-minimal
或sudo apt install --reinstall python3.10-minimal将新安装的软件包的 apt-marking 从 更改
auto为manual。
sudo apt-mark auto python3.10-minimal