From 4a52a71956a8d46fcb7294ac71734504bb09bcc2 Mon Sep 17 00:00:00 2001
From: S. Solomon Darnell
Date: Fri, 28 Mar 2025 21:52:21 -0500
Subject: two version of R2R are here

---
 .../site-packages/setuptools/_itertools.py         | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 .venv/lib/python3.12/site-packages/setuptools/_itertools.py

(limited to '.venv/lib/python3.12/site-packages/setuptools/_itertools.py')

diff --git a/.venv/lib/python3.12/site-packages/setuptools/_itertools.py b/.venv/lib/python3.12/site-packages/setuptools/_itertools.py
new file mode 100644
index 00000000..d6ca8413
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/setuptools/_itertools.py
@@ -0,0 +1,23 @@
+from more_itertools import consume  # noqa: F401
+
+
+# copied from jaraco.itertools 6.1
+def ensure_unique(iterable, key=lambda x: x):
+    """
+    Wrap an iterable to raise a ValueError if non-unique values are encountered.
+
+    >>> list(ensure_unique('abc'))
+    ['a', 'b', 'c']
+    >>> consume(ensure_unique('abca'))
+    Traceback (most recent call last):
+    ...
+    ValueError: Duplicate element 'a' encountered.
+    """
+    seen = set()
+    seen_add = seen.add
+    for element in iterable:
+        k = key(element)
+        if k in seen:
+            raise ValueError(f"Duplicate element {element!r} encountered.")
+        seen_add(k)
+        yield element
-- 
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