Issue 1742669. Now %d accepts very big float numbers.
Thanks Gabriel Genellina.
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py
index cefdcac..4e2b37e 100644
--- a/Lib/test/string_tests.py
+++ b/Lib/test/string_tests.py
@@ -1033,7 +1033,14 @@
             # unicode raises ValueError, str raises OverflowError
             self.checkraises((ValueError, OverflowError), '%c', '__mod__', ordinal)
 
+        longvalue = sys.maxint + 10L
+        slongvalue = str(longvalue)
+        if slongvalue[-1] in ("L","l"): slongvalue = slongvalue[:-1]
         self.checkequal(' 42', '%3ld', '__mod__', 42)
+        self.checkequal('42', '%d', '__mod__', 42L)
+        self.checkequal('42', '%d', '__mod__', 42.0)
+        self.checkequal(slongvalue, '%d', '__mod__', longvalue)
+        self.checkcall('%d', '__mod__', float(longvalue))
         self.checkequal('0042.00', '%07.2f', '__mod__', 42)
         self.checkequal('0042.00', '%07.2F', '__mod__', 42)
 
@@ -1043,6 +1050,8 @@
         self.checkraises(TypeError, '%c', '__mod__', (None,))
         self.checkraises(ValueError, '%(foo', '__mod__', {})
         self.checkraises(TypeError, '%(foo)s %(bar)s', '__mod__', ('foo', 42))
+        self.checkraises(TypeError, '%d', '__mod__', "42") # not numeric
+        self.checkraises(TypeError, '%d', '__mod__', (42+0j)) # no int/long conversion provided
 
         # argument names with properly nested brackets are supported
         self.checkequal('bar', '%((foo))s', '__mod__', {'(foo)': 'bar'})