call site 19 for test.raises
code/testing/test_source.py - line 76
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   def test_syntaxerror_rerepresentation():
->     ex = py.test.raises(SyntaxError, py.code.compile, 'x x')
       assert ex.value.lineno == 1
       assert ex.value.offset == 3
       assert ex.value.text.strip(), 'x x'