Index: StringIO.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/StringIO.py,v
retrieving revision 1.35
diff -u -r1.35 StringIO.py
--- StringIO.py	14 Mar 2004 07:54:37 -0000	1.35
+++ StringIO.py	11 May 2004 13:25:34 -0000
@@ -204,6 +204,7 @@
         elif size < self.pos:
             self.pos = size
         self.buf = self.getvalue()[:size]
+        self.len = size
 
     def write(self, s):
         """Write a string to the file.
@@ -310,6 +311,11 @@
     print 'File length =', f.tell()
     if f.tell() != length:
         raise RuntimeError, 'bad length'
+    f.truncate(length/2)
+    f.seek(0, 2)
+    print 'Truncated length =', f.tell()
+    if f.tell() != length/2:
+        raise RuntimeError, 'truncate did not adjust length'
     f.close()
 
 if __name__ == '__main__':