diff --git a/pep-0008.txt b/pep-0008.txt
--- a/pep-0008.txt
+++ b/pep-0008.txt
@@ -438,6 +438,17 @@ Version Bookkeeping
     other code, separated by a blank line above and below.
 
 
+Unix Shebangs and Executable Bit
+
+    Files intended to be imported as modules should not contain a shebang
+    ("#!/usr/bin/env python" or similar text on the first line) nor have the
+    executable bit set.  It is unneeded and distracting.  If a module provides
+    command-line functionality, it can be used with "python -m module" or with
+    a small script (in a different file) that imports the module and calls one
+    of its functions.  If you are using distutils, do not declare the same file
+    as module and script, it will result in undefined behavior.
+
+
 Naming Conventions
 
     The naming conventions of Python's library are a bit of a mess, so we'll