[python] == doesn't coerce types; use bool() to demonstrate truthiness instead. Closes #418.

python.html.markdown

@@ -105,8 +105,8 @@ None is None  #=> True
 
 # None, 0, and empty strings/lists all evaluate to False.
 # All other values are True
-0 == False  #=> True
-"" == False #=> True
+bool(0)  #=> False
+bool("") #=> False
 
 
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