Use a wrapper to ensure unique values on find_external_links. Factors out uniqueness test into a re-usable decorator and simplifies the body of find_external_links.

--HG--
branch : distribute

1 files changed, 11 insertions, 0 deletions

diff --git a/setuptools/py24compat.py b/setuptools/py24compat.py
new file mode 100644
index 00000000..c5d7d204
--- /dev/null
+++ b/setuptools/py24compat.py
@@ -0,0 +1,11 @@
+"""
+Forward-compatibility support for Python 2.4 and earlier
+"""
+
+# from jaraco.compat 1.2
+try:
+    from functools import wraps
+except ImportError:
+    def wraps(func):
+        "Just return the function unwrapped"
+        return lambda x: x