Printing numpy.float64 with full precision

Question

What is the proper/accepted way to print and convert a numpy.float64 to a string? I\'ve noticed just using print or str() will lose some precision

Answer 1

The astype method works well:

>>> numpy.float64('6374.345407799015').astype(str)
'6374.345407799015'

Answer 2

Look into numpy.set_printoptions. Specifically,

numpy.set_printoptions(precision=15)