Use just "python" in generate-examples.sh

It does the right thng under Travis CI.

Author: lupino3

scripts/generate-examples.sh

@@ -1,29 +1,17 @@
 #!/bin/bash
-
-# Ugly way to get any python interpreter. This is necessary because the script will run
-# both with Python 2.7 and Python 3.x under Travis.
-PYTHONS=$(which python3 python2.7 python)
-PYTHON=$(echo $PYTHONS | cut -d" " -f1)
-
-if [ -z "${PYTHON}" ]; then
-    echo "ERROR: no Python interpreter found."
-    exit 1
-fi
-echo "Using Python interpreter ${PYTHON}"
-
-# Return an error if any of the following commands fails.
 set -e
+
 echo "example1.cmd, --show-all-calls"
-${PYTHON} cmd-call-graph.py --show-all-calls < examples/example1.cmd > examples/example1.dot
+python cmd-call-graph.py --show-all-calls < examples/example1.cmd > examples/example1.dot
 echo
 echo "example1.cmd, --show-all-calls --show-node-stats"
-${PYTHON} cmd-call-graph.py --show-all-calls --show-node-stats < examples/example1.cmd > examples/example1-nodestats.dot
+python cmd-call-graph.py --show-all-calls --show-node-stats < examples/example1.cmd > examples/example1-nodestats.dot
 echo
 echo "example1.cmd, without --show-all-calls"
-${PYTHON} cmd-call-graph.py < examples/example1.cmd > examples/example1-noshowall.dot
+python cmd-call-graph.py < examples/example1.cmd > examples/example1-noshowall.dot
 echo
 echo "loc.cmd, with --show-node-status and without --show-all-calls"
-${PYTHON} cmd-call-graph.py --show-node-stats < examples/loc.cmd > examples/loc.dot
+python cmd-call-graph.py --show-node-stats < examples/loc.cmd > examples/loc.dot
 
 dot -Tpng examples/example1.dot > examples/example1.png
 dot -Tpng examples/example1-nodestats.dot > examples/example1-nodestats.png