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-rw-r--r--kconfiglib.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/kconfiglib.py b/kconfiglib.py
index 5b6dcb7..850827d 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -1782,6 +1782,8 @@ class Config(object):
def _make_and(e1, e2):
"""Constructs an AND (&&) expression. Performs trivial simplification.
+ Nones equate to 'y'.
+
Note: returns None if e1 == e2 == None."""
if e1 == "n" or e2 == "n":
return "n"