[issue13410] String formatting bug in interactive mode

Eric V. Smith report at bugs.python.org
Wed Nov 16 10:47:21 CET 2011


Eric V. Smith <eric at trueblade.com> added the comment:

Interesting! Same here.

Using eval() fails with or without -v:

--- a/Lib/test/test_format.py
+++ b/Lib/test/test_format.py
@@ -289,6 +289,18 @@
             else:
                 raise TestFailed, '"%*d"%(maxsize, -127) should fail'
 
+    def test_issue13410(self):
+        class Foo(object):
+            def __init__(self, x):
+                self.x = x
+            def __long__(self):
+                return long(self.x)
+            def __float__(self):
+                return float(self.x)
+        eval(u'%d' % Foo(22))
+        eval('%d' % Foo(22))
+
+
 def test_main():
     test_support.run_unittest(FormatTest)
 
I've put both '%d' and u'%d' here, but it also fails with just one of them.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13410>
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