diff --git a/Doc/library/site.rst b/Doc/library/site.rst
index 23ce46504f4..46bd5dc6bd0 100644
--- a/Doc/library/site.rst
+++ b/Doc/library/site.rst
@@ -129,6 +129,10 @@ empty, and the path manipulations are skipped; however the import of
    unless the :program:`python` interpreter was started with the :option:`-S`
    flag.
 
+   .. versionchanged:: 3.3
+      This function used to be called unconditionnally.
+
+
 .. function:: addsitedir(sitedir, known_paths=None)
 
    Adds a directory to sys.path and processes its pth files.
diff --git a/Tools/scripts/findnocoding.py b/Tools/scripts/findnocoding.py
index 77607ce1370..c42fa7cfa3e 100755
--- a/Tools/scripts/findnocoding.py
+++ b/Tools/scripts/findnocoding.py
@@ -2,7 +2,7 @@
 
 """List all those Python files that require a coding directive
 
-Usage: nocoding.py dir1 [dir2...]
+Usage: findnocoding.py dir1 [dir2...]
 """
 
 __author__ = "Oleg Broytmann, Georg Brandl"
@@ -50,7 +50,7 @@ def has_correct_encoding(text, codec):
 
 def needs_declaration(fullpath):
     try:
-        infile = open(fullpath, 'rU')
+        infile = open(fullpath)
     except IOError: # Oops, the file was removed - ignore it
         return None
 
diff --git a/Tools/scripts/pysource.py b/Tools/scripts/pysource.py
index 048131e2433..c7dbe605d49 100644
--- a/Tools/scripts/pysource.py
+++ b/Tools/scripts/pysource.py
@@ -42,7 +42,7 @@ def _open(fullpath):
         return None
 
     try:
-        return open(fullpath, 'rU')
+        return open(fullpath)
     except IOError as err: # Access denied, or a special file - ignore it
         print_debug("%s: access denied: %s" % (fullpath, err))
         return None