сделал. после
apt-get clean
apt-get update
и опять apt-get install trac
но сообщение осталось прежним.
может чем поможет это сообщение.
aptitude show python
Package: python
State: not installed
Version: 2.4.5-alt0.M40.1
Priority: optional
Section: Development/Python
Maintainer: Python Development Team <python@packages.altlinux.org>
Uncompressed Size: 0
Depends: python-base (= 2.4.5-alt0.M40.1), python-modules,
python-modules-encodings, python-modules-curses, python-modules-xml,
python-modules-compiler, python-modules-email, python-modules-hotshot,
python-modules-bsddb, python-modules-logging
Provides: python
Provided by: python, python-relaxed, python-strict
Description: An interpreted, interactive object-oriented programming language
Python is an interpreted, interactive, object-oriented programming language
often compared to Tcl, Perl, Scheme or Java. Python includes modules, classes,
exceptions, very high level dynamic data types and dynamic typing. Python
supports interfaces to many system calls and libraries, as well as to various
windowing systems (X11, Motif, Tk, Mac and MFC). Programmers can write new
built-in modules for Python in C or C++. Python can be used as an extension
language for applications that need a programmable interface. This package
contains most of the standard Python modules, as well as modules for
interfacing to the Tix widget set for Tk and RPM. Note that documentation for
Python is provided in the python-docs package.
но пифон стоит на самом деле. По крайней мере команда python или python2.5 вызывает его.