[backport to 2.7] bpo-28598: Support __rmod__ for RHS subclasses of str in % string formatting operations by mjpieters · Pull Request #382 · python/cpython

Expand Up @@ -38,6 +38,15 @@ def test_formatting(self): string_tests.MixinStrUnicodeUserStringTest.test_formatting(self) self.assertRaises(OverflowError, '%c'.__mod__, 0x1234)
def test_issue28598_strsubclass_rhs(self): # A subclass of str with an __rmod__ method should be able to hook # into the % operator class SubclassedStr(str): def __rmod__(self, other): return 'Success, self.__rmod__({!r}) was called'.format(other) self.assertEqual('lhs %% %r' % SubclassedStr('rhs'), "Success, self.__rmod__('lhs %% %r') was called")
@test_support.cpython_only def test_formatting_huge_precision(self): from _testcapi import INT_MAX Expand Down