the most basic change

src/zc/buildout/bootstrap.txt

@@ -58,7 +58,6 @@ Let's try with an unknown version::
     ...
     X
     No local packages or download links found for zc.buildout==UNKNOWN...
-    error: Could not find suitable distribution for Requirement.parse('zc.buildout==UNKNOWN')
     ...
 
 Now let's try with `1.1.2`, which happens to exist::

src/zc/buildout/easy_install.py

@@ -1067,9 +1067,9 @@ def _script(module_name, attrs, path, dest, executable, arguments,
     return generated
 
 if is_jython and jython_os_name == 'linux':
-    script_header = '#!/usr/bin/env %(python)s'
+    script_header = '#!/usr/bin/env %(python)s -S'
 else:
-    script_header = '#!%(python)s'
+    script_header = '#!%(python)s -S'
 
 
 script_template = script_header + '''\

src/zc/buildout/easy_install.txt

@@ -581,7 +581,7 @@ interpreter and without having to provide a '.py' suffix.
 The demo script run the entry point defined in the demo egg:
 
     >>> cat(bin, 'demo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -618,7 +618,7 @@ rather than passing a requirement:
     ...     ws, sys.executable, bin)
 
     >>> cat(bin, 'demo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -662,7 +662,7 @@ The py script simply runs the Python interactive interpreter with
 the path set:
 
     >>> cat(bin, 'py') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     <BLANKLINE>
@@ -748,7 +748,7 @@ to be included in the a generated script:
     ...    extra_paths=[foo])
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -774,7 +774,7 @@ parentheses in the call:
     ...    arguments='1, 2')
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     import sys
     sys.path[0:0] = [
       '/sample-install/demo-0.3-py2.4.egg',
@@ -797,7 +797,7 @@ You can also pass script initialization code:
     ...    initialization='import os\nos.chdir("foo")')
 
     >>> cat(bin, 'run') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     import sys
     sys.path[0:0] = [
       '/sample-install/demo-0.3-py2.4.egg',
@@ -837,7 +837,7 @@ to pass a common base directory of the scripts and eggs:
     ...    relative_paths=bo)
 
     >>> cat(bo, 'bin', 'run')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -869,7 +869,7 @@ Of course, running the script works:
 We specified an interpreter and its paths are adjusted too:
 
     >>> cat(bo, 'bin', 'py')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import os
     <BLANKLINE>

src/zc/buildout/update.txt

@@ -81,7 +81,7 @@ new versions found in new releases:
 Our buildout script has been updated to use the new eggs:
 
     >>> cat(sample_buildout, 'bin', 'buildout')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [

zc.recipe.egg_/src/zc/recipe/egg/README.txt

@@ -373,7 +373,7 @@ extra-paths option:
 Let's look at the script that was generated:
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -420,7 +420,7 @@ breaking scripts.
 Let's look at the script that was generated:
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -467,7 +467,7 @@ each individual script section:
     Generated script '/sample-buildout/bin/foo'.
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import os
     <BLANKLINE>
@@ -520,7 +520,7 @@ to be included in generated scripts:
     Generated script '/sample-buildout/bin/foo'.
 
     >>> cat(sample_buildout, 'bin', 'foo') # doctest: +NORMALIZE_WHITESPACE
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [
@@ -578,7 +578,7 @@ declare entry points using the entry-points option:
     -  other
 
     >>> cat(sample_buildout, 'bin', 'other')
-    #!/usr/local/bin/python2.4
+    #!/usr/local/bin/python2.4 -S
     <BLANKLINE>
     import sys
     sys.path[0:0] = [