[pypy-commit] pypy py3k: make sure to call __str__ when formatting subclasses of str. This fixes test_format_unicode_subclass

[antocuni]

Author: Antonio Cuni <anto.c...@gmail.com>
Branch: py3k
Changeset: r53682:16e67dc2726d
Date: 2012-03-15 16:31 +0100
http://bitbucket.org/pypy/pypy/changeset/16e67dc2726d/

Log:    make sure to call __str__ when formatting subclasses of str. This
        fixes test_format_unicode_subclass

diff --git a/pypy/objspace/std/newformat.py b/pypy/objspace/std/newformat.py
--- a/pypy/objspace/std/newformat.py
+++ b/pypy/objspace/std/newformat.py
@@ -553,7 +553,7 @@
 
         def format_string(self, w_string):
             space = self.space
-            if not space.isinstance_w(w_string, space.w_unicode):
+            if not space.is_w(space.type(w_string), space.w_unicode):
                 w_string = space.str(w_string)
             string = space.unicode_w(w_string)
             if self._parse_spec("s", "<"):
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