From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Thu, 31 Jan 2008 16:39:33 +0000 (+0100)
Subject:  * Add file for misc tools, now containing make_iter to ensure something is iteratable.
X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fprojects%2Fxerxes.git;a=commitdiff_plain;h=30a3414a97f6bbcae73a936f658b639296fcdf98

 * Add file for misc tools, now containing make_iter to ensure something is iteratable.
---

diff --git a/tools/misc.py b/tools/misc.py
new file mode 100644
index 0000000..110c370
--- /dev/null
+++ b/tools/misc.py
@@ -0,0 +1,15 @@
+"""
+Makes an iteratable object out of the given value. If value is already
+iterable, it is simply returned. An exception is made for strings, which
+are treated as non-iterable (It is assumed that you never want to have a
+list of characters). For non iteratable values or strings, a list
+containing only value is returned.
+"""
+def make_iter(value):
+    if (not isinstance(value, basestring)):
+        try:
+            iter(value)
+            return value
+        except TypeError:
+            pass
+    return [value]