Add Python Order Of Module Import for Python 3

python3.html.markdown

@@ -591,6 +591,11 @@ math.sqrt(16) == m.sqrt(16)   # => True
 import math
 dir(math)
 
+# If you have a Python script named math.py in the same
+# folder as your current script, the file math.py will
+# be loaded instead of the built-in Python module.
+# This happens because the local folder has priority
+# over Python's built-in libraries.
 
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 ## 7. Advanced