We can re-trigger this code and there is little point in stacking a ton of 
duplicate
paths which just waste time during searches for modules. This could in theory 
alter
layer module search order but that seems unlikely in common use.

Signed-off-by: Richard Purdie <[email protected]>
---
 meta/classes/base.bbclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index cc81461473f..e51722d945d 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -20,8 +20,8 @@ PACKAGECONFIG_CONFARGS ??= ""
 def oe_import(d):
     import sys
 
-    bbpath = d.getVar("BBPATH").split(":")
-    sys.path[0:0] = [os.path.join(dir, "lib") for dir in bbpath]
+    bbpath = [os.path.join(dir, "lib") for dir in 
d.getVar("BBPATH").split(":")]
+    sys.path[0:0] = [dir for dir in bbpath if dir not in sys.path]
 
     def inject(name, value):
         """Make a python object accessible from the metadata"""
-- 
2.32.0

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