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-rw-r--r--HACKING.rst10
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diff --git a/HACKING.rst b/HACKING.rst
index 3cea316..846c1b1 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -46,6 +46,16 @@ General
pass
+- Use 'raise' instead of 'raise e' to preserve original traceback or exception being reraised::
+
+ except Exception as e:
+ ...
+ raise e # BAD
+
+ except Exception:
+ ...
+ raise # OKAY
+
TODO vs FIXME
-------------