问题
Yeah. I've done this. It was stupid.
I did not know it's going to pull its dependencies with it, only wanted to install python 2 and 3 from scratch (because of this problem: https://askubuntu.com/questions/897355/how-to-change-default-idle-for-python).
Now, I can still use my terminal, checked these answers:
https://askubuntu.com/questions/741265/apt-get-remove-python-150mb-apt-get-install-python-687kb
https://askubuntu.com/questions/437644/i-accidentaly-did-sudo-apt-get-remove-python
However after running sudo apt-get install ubuntu-desktop I get these errors:
Setting up python-ldb (2:1.1.24-1ubuntu3) ...
/var/lib/dpkg/info/python-ldb.postinst: 6: /var/lib/dpkg/info/python-ldb.postinst: pycompile: not found
dpkg: error processing package python-ldb (--configure):
subprocess installed post-installation script returned error exit status 127
No apport report written because MaxReports is reached already
Setting up python-tdb (1.3.8-2) ...
/var/lib/dpkg/info/python-tdb.postinst: 6: /var/lib/dpkg/info/python-tdb.postinst: pycompile: not found
dpkg: error processing package python-tdb (--configure):
subprocess installed post-installation script returned error exit status 127
No apport report written because MaxReports is reached already
dpkg: dependency problems prevent configuration of python-samba:
python-samba depends on python-crypto; however:
Package python-crypto is not configured yet.
python-samba depends on python-ldb (>= 1.1.2~); however:
Package python-ldb is not configured yet.
python-samba depends on python-tdb; however:
Package python-tdb is not configured yet.
dpkg: error processing package python-samba (--configure):
dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
Processing triggers for libc-bin (2.23-0ubuntu7) ...
Errors were encountered while processing:
mercurial-common
python-crypto
python-dnspython
python-ldb
python-tdb
python-samba
E: Sub-process /usr/bin/dpkg returned an error code (1)
Every apt-get install command throws this.
Is there a way to restore these dependencies?
回答1:
I did the following and was able to recover my system fully:
1) sudo apt-get update
2) Ran the 4 commands given above by MattSom (thanks to him):
sudo apt-get install --reinstall python python-chardet python-colorama python-distlib python-django python-django-tables2 python-six python-html5lib python-lxml python-minimal python-pkg-resources python-setuptools python-urllib3 python-requests python-pip python-virtualenv
sudo apt-get install --reinstall python-dnspython
sudo apt autoremove
sudo apt-get -f install
But GUI was still not available. I run below to recover that as well:
3) sudo apt-get install --reinstall ubuntu-desktop
回答2:
Hallelujah.
sudo apt-get install --reinstall python python-chardet python-colorama python-distlib python-django python-django-tables2 python-six python-html5lib python-lxml python-minimal python-pkg-resources python-setuptools python-urllib3 python-requests python-pip python-virtualenv
sudo apt-get install --reinstall python-dnspython
sudo apt autoremove
sudo apt-get -f install
After a whole day of adventures in the deepest pits of internet, these commands worked for me.
python-dnspython and samba was still missing after the first command, --reinstall python-dnspython pulled samba in as well. Autoremove removed the needless dependencies.
回答3:
you can restore everything again by just running
sudo apt install gnome
even if you left with kernal only
回答4:
https://askubuntu.com/questions/187227/i-run-sudo-apt-get-remove-python2-7-can-i-restore-my-ubuntu-now
To do this, manually download the python2.7 package (and its dependencies), and manually install them using dpkg (bypassing APT, which requires Python). Once that's installed, apt should work again, and so apt-get install ubuntu-desktop will restore your system. (If apt-get still doesn't work, you might also need to download and install any missing dependencies.)
Dose that work?
(dpkg) - https://help.ubuntu.com/lts/serverguide/dpkg.html
来源：https://stackoverflow.com/questions/43064696/how-to-restore-after-accidentally-apt-get-remove-python