Incorrect Python accidentally installed

[kaurie]

I was trying to install a scientific package and Python-2.5.4 was accidentally installed.

Now every time I run python Python 2.5.4 is run

I still have python2.7 installed in /usr/bin and in this bin ls -ls python*
gives the output
python -> python2.7

I have no idea what I have done and would like to uninstall phython2.5.4

Does anyone know what I should do?

[oldfred]

That link looks correct. Python should be linked to python 2.7.
Normally you can have many versions of python installed but only one is linked to python and one to python3.
Then you run the other versions by being explicit in version number.
Did somehow 2.7 get overwritten. That should not normally happen.

My python links.

fred@fred-Precise:~$ cd /usr/bin
fred@fred-Precise:/usr/bin$ ls -ls python*
   0 lrwxrwxrwx 1 root root       9 Jun 18 12:26 python -> python2.7
   0 lrwxrwxrwx 1 root root       9 Jun 18 12:26 python2 -> python2.7
2920 -rwxr-xr-x 1 root root 2989496 Sep 26 15:29 python2.7
   4 -rwxr-xr-x 1 root root    1652 Sep 26 15:28 python2.7-config
   0 lrwxrwxrwx 1 root root      16 Jun 18 12:26 python2-config -> python2.7-config
   0 lrwxrwxrwx 1 root root       9 Apr 10 16:12 python3 -> python3.2

[kaurie]

Thanks for the reply
1 I think (am almost sure) that 2.7 is not overwritten
2 I would like to use the terminal so that when I type python I use pyhton 2.7. Is there an easy way to reset the links
3 I do not know how to get python links (like you did) (Sorry I am ignorant of some Linux)

[oldfred]

I posted the commands with my output above.
cd /usr/bin
ls -ls python*

Then just copy & paste from terminal. Use code tags easily from advanced editor # icon.

[kaurie]

Ops - how embassaring I did not read your code properly

lpa@CLINO:/etc$ cd /usr/bin
lpa@CLINO:/usr/bin$ ls -ls python*
0 lrwxrwxrwx 1 root root 9 Jun 19 03:26 python -> python2.7
0 lrwxrwxrwx 1 root root 9 Jun 19 03:26 python2 -> python2.7
2920 -rwxr-xr-x 1 root root 2989496 Sep 27 06:29 python2.7
4 -rwxr-xr-x 1 root root 1652 Sep 27 06:28 python2.7-config
6172 -rwxr-xr-x 1 root root 6318332 Sep 27 05:43 python2.7-dbg
4 -rwxr-xr-x 1 root root 1656 Sep 27 06:29 python2.7-dbg-config
0 lrwxrwxrwx 1 root root 16 Jun 19 03:26 python2-config -> python2.7-config
0 lrwxrwxrwx 1 root root 13 Jun 19 03:26 python2-dbg -> python2.7-dbg
0 lrwxrwxrwx 1 root root 20 Jun 19 03:26 python2-dbg-config -> python2.7-dbg-config
0 lrwxrwxrwx 1 root root 16 Jun 19 03:26 python-config -> python2.7-config
0 lrwxrwxrwx 1 root root 13 Jun 19 03:26 python-dbg -> python2.7-dbg
0 lrwxrwxrwx 1 root root 20 Jun 19 03:26 python-dbg-config -> python2.7-dbg-config

I am sorry to be dense but can you tell me how to change the link (is it called the symbolic link) to run the 2.7 version. When I run in the terminal (at present) I get

lpa@CLINO:/usr/bin$ python
Python 2.5.4 (r254:67916, Sep 27 2012, 13:12:30)
[GCC 4.6.3] on linux3

[oldfred]

All the links are saying they go to 2.7??
So I do not know how running python gives you the 2.5 version.

I prefer synaptic as it shows more. But many parts of Ubuntu need the correct python version.
Can you run this:
sudo apt-get install synaptic
Then from gui, search for synaptic and run that.
In synaptic search, put in python. What version(s) does it show. And for 2.7 click on reinstall and run that.
If not we can run from command line if necessary.

I found this in my notes. May be better?
http://ubuntuforums.org/showthread.php?t=2110364
python --version
sudo update-alternatives --config python

[kaurie]

Thanks again for the help

I will wait till the weekend to try this and let you know what the outcome was.

[Vaphell]

how exactly did you accidentally install python 2.5.4?

[kaurie]

Vaphell - I was installing a scientific package from the web and did not check it carefully enough. This packae automatically intalled python 2.5.4 - where I was not sure

[kaurie]

OK I am now geting somewhere.

I finally looked at PATH

lpa@CLINO:/usr/bin$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

So I found python 2.5.4 installed in /usr/local/bin

lpa@CLINO:/usr/local/bin$ ls -ls python*
5120 -rwxr-xr-x 2 root root 5242800 Sep 27 2012 python
5120 -rwxr-xr-x 2 root root 5242800 Sep 27 2012 python2.5
4 -rwxr-xr-x 1 root root 1424 Sep 27 2012 python2.5-config
0 lrwxrwxrwx 1 root root 16 Sep 27 2012 python-config -> python2.5-config


lpa@CLINO:/usr/local/bin$ ls
bsp_virtual ncgen pyro-genguid pyro-rns python2.5 task_manager
f2py pydoc pyro-ns pyro-wxnsc python2.5-config tviewer
idle pyro-es pyro-nsc pyro-xnsc python-config
ncdump pyro-esd pyro-nsd python smtpd.py

AND when I am in /usr/bin and run python2.7

lpa@CLINO:/usr/bin$ python2.7
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

SO

I think that I need to disable the links in /usr/local/bin and I will be OK

ANY Comments