convert python list to numpy array code example

Example 1: convert list to nd array

numpy.asarray(arr, dtype=None, order=None)

Example 2: convert list of lists to numpy array matrix python

x=[[1,2],[1,2,3],[1]]
y=numpy.array([numpy.array(xi) for xi in x])
type(y)
# <type 'numpy.ndarray'>
type(y[0])
# <type 'numpy.ndarray'>