"/usr/bin/python" missing after installing Python 3.0

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http://askubuntu.com – OS version:Ubuntu 12.04 LTS Hey all, I recently started programming in python, so I went to download python 3.0, and it appears I have ruined all python files on my installation, whenever I try to run anything with python I get this error: chris@chris-Modena-M101:~$ python bash: /usr/bin/python: No such file or directory chris@chris-Modena-M101:~$ I tried to install Python 3 again it said it was done, but I still get this error. Please can anyone help me? This is really bugging me as I cant use many defalt ubuntu programs because of this. Thanks for reading. (HowTos)