Installing Trac 12 on Centos 5.5 – requires Python 2.6

2012-12-31

Installing Trac 12 on Centos 5.5 – requires Python 2.6

I had problems with incompatible versions – CentOS 5.5 insists on having Python 2.4 because Yum uses it.

If you try to uninstall python-sqlite to upgrade to support SQLite 3.x, which is needed by Trac >=12.x, stupid yum will uninstall itself. I never thought any package manager would do that, but be warned – yum is really pretty dumb.

Basically, I added all the RPM repositories I found to Yum.

In the end, my /etc/yum.repo.d contained:

[root@localhost yum.repos.d]# ls -1
CentOS-Base.repo
CentOS-Media.repo
chl.repo
epel.repo
epel-testing.repo
fedora-repos.repo
jpackage50.repo
mirrors-rpmforge
rpmforge.repo
rpmforge-testing.repo
trac-repos.repo

First, I needed Python 2.6. This was soved by Chris Lea's repo – he made a package which installs Python 2.6 to /usr/lib/python2.6, leaving Python 2.4 in peace.

Then, CentOS had SVN 1.4.2. I used yum update subversion, which updated to SVN 1.6.13 from one of the repos above, probably RPMForge.

The last piece was to install subversion-python binding package to python 2.6, for which I needed to learn a new RPM trick:

rpm -i subversion-python...rpm --relocate /usr/lib/python2.4=/usr/lib/python2.6

Yum can't do this AFAIK.

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