file /usr/lib/python2.4/site-packages/sitecustomize.pyc from install of eric4-4.0.4-alt3 conflicts with file from package eric-3.9.0-alt1 file /usr/lib/python2.4/site-packages/sitecustomize.pyo from install of eric4-4.0.4-alt3 conflicts with file from package eric-3.9.0-alt1
sitecustomize.py[c] вообще в пакет попадать не должен, что в eric, что в eric4: "After these path manipulations, an attempt is made to import a module named sitecustomize, which can perform arbitrary *site-specific* customizations." http://docs.python.org/lib/module-site.html
Я пофиксил eric4 только. С eric3 все-таки ломает в чужое.
См. bug 13971 про eric3