SF patch# 1770008 by Christian Heimes (plus some extras).

Completely get rid of StringIO.py and cStringIO.c.

I had to fix a few tests and modules beyond what Christian did, and
invent a few conventions.  E.g. in elementtree, I chose to
write/return Unicode strings whe no encoding is given, but bytes when
an explicit encoding is given.  Also mimetools was made to always
assume binary files.

1 files changed, 1 insertions, 9 deletions

diff --git a/Lib/optparse.py b/Lib/optparse.py
index e648a281e4..84a6abd192 100644
--- a/Lib/optparse.py
+++ b/Lib/optparse.py
@@ -1621,13 +1621,6 @@ class OptionParser (OptionContainer):
         result.append(self.format_epilog(formatter))
         return "".join(result)
 
-    # used by test suite
-    def _get_encoding(self, file):
-        encoding = getattr(file, "encoding", None)
-        if not encoding:
-            encoding = sys.getdefaultencoding()
-        return encoding
-
     def print_help(self, file=None):
         """print_help(file : file = stdout)
 
@@ -1636,8 +1629,7 @@ class OptionParser (OptionContainer):
         """
         if file is None:
             file = sys.stdout
-        encoding = self._get_encoding(file)
-        file.write(self.format_help().encode(encoding, "replace"))
+        file.write(self.format_help())
 
 # class OptionParser