18 lines
		
	
	
		
			555 B
		
	
	
	
		
			Python
		
	
	
	
	
	
		
		
			
		
	
	
			18 lines
		
	
	
		
			555 B
		
	
	
	
		
			Python
		
	
	
	
	
	
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								import numpy as np
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								from numpy.testing import assert_, assert_array_equal, assert_equal
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								class TestView:
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								    def test_type(self):
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								        x = np.array([1, 2, 3])
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								        assert_(isinstance(x.view(np.matrix), np.matrix))
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								    def test_keywords(self):
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								        x = np.array([(1, 2)], dtype=[('a', np.int8), ('b', np.int8)])
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								        # We must be specific about the endianness here:
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								        y = x.view(dtype='<i2', type=np.matrix)
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								        assert_array_equal(y, [[513]])
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								        assert_(isinstance(y, np.matrix))
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								        assert_equal(y.dtype, np.dtype('<i2'))
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