I removed Python 3.4 physically, is there anything I can do to avoid having to reinstall system?

Question

While trying to install a python package I made a horrible mistake and removed Python 3.4 (if you are interested in how did I come up with it below is the link to my question on StackOverflow).

https://stackoverflow.com/questions/36426547/physically-uninstalled-python-3-4-to-make-pip3-install-requests-package-to-pyt/36426985?noredirect=1#comment60469836_36426985

Anyway, now I can't run sudo apt-get install --reinstall python3.4, which is pretty bad I guess. Is there any way I could make my ubuntu 14.04 work again without having to lose files on my computer?

EDIT: Btw. I still have Python 2.7 (which I thought was the one used by the system), perhaps there is some way to use it to recover the rest?