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Yesterday I accidentally removed the python package using "yum remove" on a CentOS server. After then I realized yum was dependant on python and I could no longer use yum. I think I need to reinstall python to fix the problem. How can I do this without using yum?

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migrated from Jul 22 '12 at 15:23

This question came from our site for professional and enthusiast programmers.

this is not a programming question – Ramchandra Apte Jul 22 '12 at 9:35
you can compile Python from source if you have a compiler installed and make and autoconfigure – Ramchandra Apte Jul 22 '12 at 9:37
You may find that your question gets better results on ServerFault =) – katrielalex Jul 22 '12 at 9:58

I'm surprised you were able to remove the python package. It has so many dependencies on a RHEL/CentOS system, that there's a good chance you removed far more than python. Running yum remove python on one of my CentOS systems yields:

Dependencies Resolved

 Package                                 Arch           Version                             Repository         Size
 python                                  x86_64         2.4.3-46.el5                        installed          72 k
Removing for dependencies:
 AcronisAgentLinux                       x86_64         41.0.16-1                           installed          13 M
 BackupAndRecoveryAgent                  x86_64         11.0.17318-1                        installed         154 M
 GConf2                                  i386           2.14.0-9.el5                        installed         4.6 M
 yum-metadata-parser                     x86_64         1.1.2-3.el5.centos                  installed          55 k
 yum-security                            noarch         1.1.16-21.el5.centos                installed          60 k
 yum-updatesd                            noarch         1:0.9-2.el5                         installed          55 k
 yum-utils                               noarch         1.1.16-21.el5.centos                installed         194 k
 zsh                                     x86_64         4.2.6-6.el5                         installed         3.6 M

Transaction Summary
Remove      493 Package(s)
Reinstall     0 Package(s)
Downgrade     0 Package(s)

Is this ok [y/N]: (Heck-no!)

Did you actually let the process remove hundreds of installed packages?

If you only removed a single package, you would need to download the python RPM for your particular version of CentOS. If this was CentOS version 5.8 on 64-bit, for instance, you'd find the current package name in the CentOS repository... Look for python-2.4.3-46.el5.x86_64.rpm

To install that particular package, use wget to download the individual package. Use rpm -ivh python-2.4.3-46.el5.x86_64.rpm to actually install it with the RPM package manager.

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That surprised me as well. Here is what happened: - I got problems when I tried "yum update", mostly on python packages - I called yum remove python, and then I realized it had so many dependant packages and stopped uninstallation. - After then yum started failing because python was removed - I logged out of the server and couldn't connect ever again using SSH terminal as OpenSSL packages were dependant on python. I'm not a linux admin but I don't think an OS should let you remove python using yum (which is dependant on python). – Umit Jul 26 '12 at 8:35

If you have make&&gcc installed:

tar jfvx Python-2.4.tar.bz2
cd python
make all
make install

Then you can have your Python back.

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Thanks for that but as I lost the access to the server using SSH terminal, I couldn't try this. I ended up reinstalling the OS. – Umit Jul 26 '12 at 8:41

Building your own Python back didn't work for me. This works:

(note this is for a Centos 6x host, which now uses Python2.6, but it's the same thing)

wget  []://
wget  []://
wget  []://

rpm -Uvh --replacepkgs *.rpm

And then Yum will work again.

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