python - Get subarray from bi-dimensional array in just one line -

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I have a problem finding and receiving from a two-dimensional array in Python and trying the array I get it For example does not pretend to use the structure. Someone knows how to get this array in just one or a few lines of code.

Thank you.

An example is: 

  my_dimensional_array   
 I need to go back  
 <(1, 'A'), (1, 'b'), (2, 'c') code> my_single_array_from_1 = [(1, 'a'), (1, 'b')]    
 
 
 You can use the  my_dimensional_array  to select the elements whose first value is 1 In [16]: my_dimensional_array = [[17] in [(1, 'a'), (1, 'b'), (2, 'c')] : [Item in item i_dimensional_array if item [0] == 1] outside [17]: [(1, 'a'), (1, 'b')]    < / Html>

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