Hello Wei Hu again. > my system has both pyton2.3 and python2.4. Is it safe to remove > python2.3 using apt-get remove. Not as long as there are programs which need it. And at the moment the default python package still points to python2.3, so programs will most likely use it. But there is a transition ongoing from version 2.3 to 2.4. At the moment it is only in the experimental branch but it is planned to include this transition with the release of Etch in december. So, if you are using Testing or Unstable you may try the new packages from Testing and checkout your Python programs after upgrading. But don’t demand that all of them keep working. This is what the transition currently is for. Regards, Mathias
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