Bug #1688564: document os.path.join's absolute path behavior in the docstring.
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index 6f15d48..6d4a9e2 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -56,7 +56,9 @@
# Insert a '/' unless the first part is empty or already ends in '/'.
def join(a, *p):
- """Join two or more pathname components, inserting '/' as needed"""
+ """Join two or more pathname components, inserting '/' as needed.
+ If any component is an absolute path, all previous path components
+ will be discarded."""
path = a
for b in p:
if b.startswith('/'):