[Python-checkins] r88336 - in python/branches/release27-maint: Doc/library/io.rst

[antoine.pitrou]

Author: antoine.pitrou
Date: Fri Feb  4 21:17:53 2011
New Revision: 88336

Log:
Merged revisions 88334 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r88334 | antoine.pitrou | 2011-02-04 21:11:11 +0100 (ven., 04 févr. 2011) | 3 lines
  
  Mention that seek and tell over a TextIOWrapper can be very slow.
........


Modified:
   python/branches/release27-maint/   (props changed)
   python/branches/release27-maint/Doc/library/io.rst

Modified: python/branches/release27-maint/Doc/library/io.rst
==============================================================================
--- python/branches/release27-maint/Doc/library/io.rst	(original)
+++ python/branches/release27-maint/Doc/library/io.rst	Fri Feb  4 21:17:53 2011
@@ -812,6 +812,8 @@
 binary I/O over the same storage, because it implies conversions from
 unicode to binary data using a character codec.  This can become noticeable
 if you handle huge amounts of text data (for example very large log files).
+Also, :meth:`TextIOWrapper.tell` and :meth:`TextIOWrapper.seek` are both
+quite slow due to the reconstruction algorithm used.
 
 :class:`StringIO`, however, is a native in-memory unicode container and will
 exhibit similar speed to :class:`BytesIO`.