title: Check whether 2D array contains a specific 1D array in Numpy
body: <p>Is there a way I can check to see whether a matrix in Numpy contains a specific vector? </p>
  
  <p>i.e. </p>
  
  <pre><code>X = np.array([[1, 1, 1], [2, 2, 2], [3, 3, 3]]) 
  
  v = np.array([1, 1, 1])
  </code></pre>
  
  <p>I want to be able to test: <code>bool = v</code> in <code>X</code>. I know this doesn't work with Numpy and wonder if there is a ay to test this without obnoxious loops? Thanks for any help!</p>