1 files changed, 19 insertions, 0 deletions
diff --git a/ngxtop/utils.py b/ngxtop/utils.py
new file mode 100644
index 0000000..ef61072
--- /dev/null
+++ b/ngxtop/utils.py
@@ -0,0 +1,19 @@
+import sys
+
+
+def choose_one(choices, prompt):
+    for idx, choice in enumerate(choices):
+        print('%d. %s' % (idx + 1, choice))
+    selected = None
+    while not selected or selected <= 0 or selected > len(choices):
+        selected = raw_input(prompt)
+        try:
+            selected = int(selected)
+        except ValueError:
+            selected = None
+    return choices[selected - 1]
+
+
+def error_exit(msg, status=1):
+    sys.stderr.write('Error: %s\n' % msg)
+    sys.exit(status)
+\ No newline at end of file