diff --git a/packages/python/net/Coherence/build b/packages/python/net/Coherence/build
index bceba0e290..1a4739c60b 100755
--- a/packages/python/net/Coherence/build
+++ b/packages/python/net/Coherence/build
@@ -9,6 +9,4 @@ $SCRIPTS/build Python
 
 cd $BUILD/$1*
 
-$PYTHON setup.py install --prefix /usr --root .install
-
-find .install -name "*.py" -exec rm -rf "{}" ";"
+$PYTHON setup.py bdist_egg --exclude-source-files
diff --git a/packages/python/net/Coherence/install b/packages/python/net/Coherence/install
index 6c0b533731..9089e3de42 100755
--- a/packages/python/net/Coherence/install
+++ b/packages/python/net/Coherence/install
@@ -4,4 +4,8 @@
 
 $SCRIPTS/install Python
 
-cp -PR $BUILD/$1*/.install/* $INSTALL
+. config/options.python
+
+PKG_SRC_DIR=`ls -d $BUILD/$1[-_][0-9]*`
+
+$TOOLCHAIN/bin/easy_install --exclude-scripts --zip-ok --no-deps --quiet --prefix=$INSTALL/usr $PKG_SRC_DIR/dist/*.egg
diff --git a/packages/python/sysutils/cssutils/build b/packages/python/sysutils/cssutils/build
index 040ff97d6c..1a4739c60b 100755
--- a/packages/python/sysutils/cssutils/build
+++ b/packages/python/sysutils/cssutils/build
@@ -9,13 +9,4 @@ $SCRIPTS/build Python
 
 cd $BUILD/$1*
 
-$PYTHON setup.py build
-$PYTHON setup.py install --single-version-externally-managed \
-  -O1 --skip-build --prefix /usr --root .install
-
-find .install -name "*.py" -type f -exec rm -rf "{}" ";"
-find .install -name "*.pyo" -type f -exec rm -rf "{}" ";"
-
-rm -rf .install/usr/lib/python*/site-packages/tests
-rm -rf .install/usr/bin
-
+$PYTHON setup.py bdist_egg --exclude-source-files
diff --git a/packages/python/sysutils/cssutils/install b/packages/python/sysutils/cssutils/install
index 41d34f849d..9089e3de42 100755
--- a/packages/python/sysutils/cssutils/install
+++ b/packages/python/sysutils/cssutils/install
@@ -4,8 +4,8 @@
 
 $SCRIPTS/install Python
 
-BUILD_DIR=`ls -d $BUILD/$1*`
-
 . config/options.python
 
-cp -PR $BUILD_DIR/.install/* $INSTALL
\ No newline at end of file
+PKG_SRC_DIR=`ls -d $BUILD/$1[-_][0-9]*`
+
+$TOOLCHAIN/bin/easy_install --exclude-scripts --zip-ok --no-deps --quiet --prefix=$INSTALL/usr $PKG_SRC_DIR/dist/*.egg
diff --git a/packages/python/www/zope.interface/build b/packages/python/www/zope.interface/build
index 9ffdcc214c..3fe5fac842 100755
--- a/packages/python/www/zope.interface/build
+++ b/packages/python/www/zope.interface/build
@@ -3,17 +3,9 @@
 . config/options
 
 $SCRIPTS/build toolchain
+$SCRIPTS/build Python
 
 . config/options.python
 
 cd $BUILD/$1*
-
-$PYTHON setup.py build
-
-$PYTHON setup.py install -O1 --skip-build --single-version-externally-managed --root $SYSROOT_PREFIX --prefix /usr
-$PYTHON setup.py install -O1 --skip-build --single-version-externally-managed --root ./.install --prefix /usr
-
-find .install -name "*.py" -exec rm -rf "{}" ";"
-find .install -name "*.pyo" -exec rm -rf "{}" ";"
-
-rm -rf .install/usr/lib/python*/site-packages/zope/interfaces*/tests
\ No newline at end of file
+$PYTHON setup.py bdist_egg --exclude-source-files
diff --git a/packages/python/www/zope.interface/install b/packages/python/www/zope.interface/install
index 40cd5f4fad..3ed2d8cc72 100755
--- a/packages/python/www/zope.interface/install
+++ b/packages/python/www/zope.interface/install
@@ -4,4 +4,8 @@
 
 $SCRIPTS/install Python
 
-cp -PR $BUILD/$1*/.install/* $INSTALL
\ No newline at end of file
+. config/options.python
+
+PKG_SRC_DIR=`ls -d $BUILD/$1*`
+
+$TOOLCHAIN/bin/easy_install --exclude-scripts --zip-ok --no-deps --quiet --prefix=$INSTALL/usr $PKG_SRC_DIR/dist/*.egg