utils: move listify to a generic trappy.utils file

listify() is used in both plotter and stats.  Move it out of
trappy.plotter.Utils into a generic trappy.utils file as it's not
something specific of the plotter.

1 files changed, 27 insertions, 0 deletions

diff --git a/trappy/utils.py b/trappy/utils.py
new file mode 100644
index 0000000..5d205e9
--- /dev/null
+++ b/trappy/utils.py
@@ -0,0 +1,27 @@
+#    Copyright 2015-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Generic functions that can be used in multiple places in trappy
+"""
+
+def listify(to_select):
+    """Utitlity function to handle both single and
+    list inputs
+    """
+
+    if not isinstance(to_select, list):
+        to_select = [to_select]
+
+    return to_select