Move the src directory to poezio, for better cython compatibility.

1 files changed, 20 insertions, 0 deletions

diff --git a/poezio/singleton.py b/poezio/singleton.py
new file mode 100644
index 00000000..9133012b
--- /dev/null
+++ b/poezio/singleton.py
@@ -0,0 +1,20 @@
+# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
+#
+# This file is part of Poezio.
+#
+# Poezio is free software: you can redistribute it and/or modify
+# it under the terms of the zlib license. See the COPYING file.
+
+"""
+Defines a Singleton function that initialize an object
+of the given class if it was never instantiated yet. Else, returns
+the previously instantiated object.
+This method is the only one that I can come up with that do not call
+__init__() each time.
+"""
+
+instances = {}
+def Singleton(cls, *args, **kwargs):
+    if not cls in instances:
+        instances[cls] = cls(*args, **kwargs)
+    return instances[cls]