diff --git a/sources/tech/20160512 Python unittest - assertTrue is truthy - assertFalse is falsy.md b/sources/tech/20160512 Python unittest - assertTrue is truthy - assertFalse is falsy.md
index bfed46fb0e..a0a556b81c 100644
--- a/sources/tech/20160512 Python unittest - assertTrue is truthy - assertFalse is falsy.md	
+++ b/sources/tech/20160512 Python unittest - assertTrue is truthy - assertFalse is falsy.md	
@@ -1,3 +1,4 @@
+Translated by chunyang-wen
 Python unittest: assertTrue is truthy, assertFalse is falsy
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