Remove stale .pyc files before tests and local run

This should make running tests faster, as we do not remove all .pyc
files anymore!

tools/local_run.sh

@@ -7,4 +7,6 @@ if [ -z "${PYTHON}" ]; then
     which python2.7 >/dev/null 2>&1 && PYTHON=$(which python2.7)
 fi
 
+${PYTHON} "$(dirname $0)/stale_pyc.py"
+
 exec "${PYTHON}" "$(dirname $0)/local_run.py" "$@"

tools/run_tests.sh

@@ -62,7 +62,7 @@ fi
 
 # path to sources
 WEBOOB_DIR=$(readlink -e $(dirname $0)/..)
-find $WEBOOB_DIR -name "*.pyc" -delete
+${PYTHON} "$(dirname $0)/stale_pyc.py"
 echo "file://$WEBOOB_DIR/modules" > "${WEBOOB_TMPDIR}/sources.list"
 
 export WEBOOB_WORKDIR="${WEBOOB_TMPDIR}"