Python in a Nutshell

Name

tolist

Synopsis

                        a.tolist( )

Returns a list L equivalent to a. For example, if a .shape is (2,3) and a’s type code is 'd', L is a list of two lists of three float values each. In other words, for each valid i and j, L [ i ][ j ]== a [ i,j ]. Note that list( a ) converts only the top-level (axis 0) of array a into a list, and thus is not equivalent to a .tolist( ) if a’s rank is 2 or more. For example:

a=array([[1,2,3],[4,5,6]],typecode='d')
print a.shape             # prints: (2,3)
print a                   # prints: [[1. 2. 3.]
                          #          [4. 5. 6.]]
print list(a)             
# prints: [array([1.,2.,3.]), array([4.,5.,6.])]
print a.tolist( )          
# prints: [[1.0,2.0,3.0],[4.0,5.0,6.0]]