当我这样做时，Theano没有通过它的测试：
python -c "import theano; theano.test();"
如果这些是已知的失败，它还不应该通过吗？ IE当我测试其他库时，KnownFailures有时会触发，但整体测试仍然通过＆＃34; OK＆＃34; （但仍会注意到KnownFails和Skipped测试）。
我的猜测是没关系，测试确实是＆＃34;传递＆＃34;，但是因为我在deeplearning.net教程之后进行全新安装，而且我得到了这个错误，我认为其他人也可能有这个问题，在Google上搜索，以及SO，并不是真的有用。
原谅错误代码转储，我相信没有人需要通读这一切，但如果其他人有这个问题，请在此处作为参考。以下是测试结束时的错误：
======================================================================
ERROR: test_none (theano.compile.tests.test_function_module.T_function)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/compile/tests/test_function_module.py", line 42, in test_none
raise KnownFailureTest('See #254: Using None as function output leads to [] return value')
KnownFailureTest: See #254: Using None as function output leads to [] return value
======================================================================
ERROR: test002_generator_one_scalar_output (theano.sandbox.scan_module.tests.test_scan.TestScan)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/sandbox/scan_module/tests/test_scan.py", line 474, in test002_generator_one_scalar_output
raise KnownFailureTest('Work-in-progress sandbox ScanOp is not fully '
KnownFailureTest: Work-in-progress sandbox ScanOp is not fully functional yet
======================================================================
ERROR: test003_one_sequence_one_output_and_weights (theano.sandbox.scan_module.tests.test_scan.TestScan)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/sandbox/scan_module/tests/test_scan.py", line 512, in test003_one_sequence_one_output_and_weights
raise KnownFailureTest('Work-in-progress sandbox ScanOp is not fully '
KnownFailureTest: Work-in-progress sandbox ScanOp is not fully functional yet
======================================================================
ERROR: test_alloc_inputs2 (theano.scan_module.tests.test_scan.T_Scan)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/scan_module/tests/test_scan.py", line 2844, in test_alloc_inputs2
"This tests depends on an optimization for scan "
KnownFailureTest: This tests depends on an optimization for scan that has not been implemented yet.
======================================================================
ERROR: test_infershape_seq_shorter_nsteps (theano.scan_module.tests.test_scan.T_Scan)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/scan_module/tests/test_scan.py", line 3040, in test_infershape_seq_shorter_nsteps
raise KnownFailureTest('This is a generic problem with infershape'
KnownFailureTest: This is a generic problem with infershape that has to be discussed and figured out
======================================================================
ERROR: test_outputs_info_not_typed (theano.scan_module.tests.test_scan.T_Scan)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: This test fails because not typed outputs_info are always gived the smallest dtype. There is no upcast of outputs_info in scan for now.
======================================================================
ERROR: test_arithmetic_cast (theano.tensor.tests.test_basic.test_arithmetic_cast)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/tensor/tests/test_basic.py", line 5583, in test_arithmetic_cast
raise KnownFailureTest('Known issue with '
KnownFailureTest: Known issue with numpy >= 1.6.x see #761
======================================================================
ERROR: test_abs_grad (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_complex_grads (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_mul_mixed (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_mul_mixed0 (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_mul_mixed1 (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_polar_grads (theano.tensor.tests.test_complex.TestRealImag)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: test_gradient (theano.tensor.tests.test_fourier.TestFourier)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 213, in knownfailer
raise KnownFailureTest(msg)
KnownFailureTest: Complex grads not enabled, see #178
======================================================================
ERROR: theano.tensor.tests.test_opt.test_log_add
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
self.test(*self.arg)
File "/usr/local/lib/python2.7/dist-packages/theano/tensor/tests/test_opt.py", line 1508, in test_log_add
raise KnownFailureTest(('log(add(exp)) is not stabilized when adding '
KnownFailureTest: log(add(exp)) is not stabilized when adding more than 2 elements, see #623
======================================================================
ERROR: Currently Theano enable the constant_folding optimization before stabilization optimization.
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
self.test(*self.arg)
File "/usr/local/lib/python2.7/dist-packages/theano/tensor/tests/test_opt.py", line 3068, in test_constant_get_stabilized
"Theano optimizes constant before stabilization. "
KnownFailureTest: Theano optimizes constant before stabilization. This breaks stabilization optimization in some cases. See #504.
======================================================================
ERROR: test_dot (theano.tests.test_rop.test_RopLop)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/tests/test_rop.py", line 277, in test_dot
self.check_rop_lop(tensor.dot(self.x, W), self.in_shape)
File "/usr/local/lib/python2.7/dist-packages/theano/tests/test_rop.py", line 191, in check_rop_lop
raise KnownFailureTest("Rop doesn't handle non-differentiable "
KnownFailureTest: Rop doesn't handle non-differentiable inputs correctly. Bug exposed by fixing Add.grad method.
======================================================================
ERROR: test_elemwise0 (theano.tests.test_rop.test_RopLop)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/theano/tests/test_rop.py", line 280, in test_elemwise0
self.check_rop_lop((self.x + 1) ** 2, self.in_shape)
File "/usr/local/lib/python2.7/dist-packages/theano/tests/test_rop.py", line 191, in check_rop_lop
raise KnownFailureTest("Rop doesn't handle non-differentiable "
KnownFailureTest: Rop doesn't handle non-differentiable inputs correctly. Bug exposed by fixing Add.grad method.
----------------------------------------------------------------------
Ran 2441 tests in 807.791s
FAILED (errors=18)
谢谢！
答案 0 :(得分：2)
KnownFailureTest是nosetests的有效返回值。当Theano开始时，我们在那里创建要实现的功能测试并在其中引入KnownFailureTest，直到我们实现它们。我们不再这样做了，因为我们最终得到了人们对此的许多问题。所以这会引起太多分心。但是我们并没有改变那些做到这一点的旧测试。
我刚刚创建了一个问题来改变它：https://github.com/Theano/Theano/issues/2375
我不知道什么时候会改变。