remove old setuptools wheel, then fix pip, then upgrade setuptools

Author: mr-c

release-test.sh

@@ -18,10 +18,9 @@ virtualenv testenv4
 
 # First we test the head
 source testenv1/bin/activate
-pip uninstall -y setuptools \
-	&& rm testenv1/lib/python-wheels/setuptools* \
+rm testenv1/lib/python-wheels/setuptools* \
 	&& pip install --force-reinstall -U pip==1.5.6 \
-        && pip install -U setuptools==20.10.1
+        && pip install setuptools==20.10.1
 make install-dependencies
 make test
 pip uninstall -y ${package} || true; pip uninstall -y ${package} || true; make install
@@ -35,10 +34,9 @@ pushd testenv1/not-${module}; ../bin/${run_tests}; popd
 
 cd testenv2
 source bin/activate
-pip uninstall -y setuptools \
-	&& rm lib/python-wheels/setuptools* \
+rm lib/python-wheels/setuptools* \
 	&& pip install --force-reinstall -U pip==1.5.6 \
-        && pip install -U setuptools==20.10.1
+        && pip install setuptools==20.10.1
 pip install -e git+${repo}@${HEAD}#egg=${package}
 cd src/${package}
 make install-dependencies
@@ -54,10 +52,9 @@ bin/${run_tests}
 
 cd ../testenv3/
 source bin/activate
-pip uninstall -y setuptools \
-	&& rm lib/python-wheels/setuptools* \
+rm lib/python-wheels/setuptools* \
 	&& pip install --force-reinstall -U pip==1.5.6 \
-        && pip install -U setuptools==20.10.1
+        && pip install setuptools==20.10.1
 pip install ${package}*tar.gz
 pip install pytest
 tar xzf ${package}*tar.gz