# HG changeset patch
# Parent  c49084a28969a690973bba76f14421f359349e11
Issue #27716: Document how HTTP header fields are transformed to text

diff -r c49084a28969 -r a6c10710c0ee Doc/library/http.client.rst
--- a/Doc/library/http.client.rst	Sat Sep 17 07:59:32 2016 +0000
+++ b/Doc/library/http.client.rst	Sun Sep 18 01:51:50 2016 +0000
@@ -405,6 +405,10 @@
 body.  The response is an iterable object and can be used in a with
 statement.
 
+Header field values are decoded to text :class:`str` objects using
+ISO-8859-1.  They may be encoded back with ISO-8895-1 to produce the
+original bytes sent in the response.
+
 .. versionchanged:: 3.5
    The :class:`io.BufferedIOBase` interface is now implemented and
    all of its reader operations are supported.