# numpy.source

numpy.source(object, output=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

  Print or write to a file the source code for a NumPy object.

  The source code is only returned for objects written in Python. Many functions and classes are defined in C and will therefore not return useful information.

  Parameters:
    object numpy object

      Input object. This can be any object (function, class, module, …).

    output file object, optional

      If output not supplied then source code is printed to screen (sys.stdout). File object must be created with either write ‘w’ or append ‘a’ modes.

  See also

  `lookfor`, `info`

  Examples

      >>> np.source(np.interp)
      In file: /usr/lib/python2.6/dist-packages/numpy/lib/function_base.py
      def interp(x, xp, fp, left=None, right=None):
          """.... (full docstring printed)"""
          if isinstance(x, (float, int, number)):
              return compiled_interp([x], xp, fp, left, right).item()
          else:
              return compiled_interp(x, xp, fp, left, right)

  The source code is only returned for objects written in Python.

      >>> np.source(np.array)
      Not available for this object.