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Module « numpy »

Fonction info - module numpy

Signature de la fonction info

def info(object=None, maxwidth=76, output=None, toplevel='numpy') 

Description

help(numpy.info)

Get help information for an array, function, class, or module.

Parameters
----------
object : object or str, optional
    Input object or name to get information about. If `object` is
    an `ndarray` instance, information about the array is printed.
    If `object` is a numpy object, its docstring is given. If it is
    a string, available modules are searched for matching objects.
    If None, information about `info` itself is returned.
maxwidth : int, optional
    Printing width.
output : file like object, optional
    File like object that the output is written to, default is
    ``None``, in which case ``sys.stdout`` will be used.
    The object has to be opened in 'w' or 'a' mode.
toplevel : str, optional
    Start search at this level.

Notes
-----
When used interactively with an object, ``np.info(obj)`` is equivalent
to ``help(obj)`` on the Python prompt or ``obj?`` on the IPython
prompt.

Examples
--------
>>> np.info(np.polyval) # doctest: +SKIP
   polyval(p, x)
     Evaluate the polynomial p at x.
     ...

When using a string for `object` it is possible to get multiple results.

>>> np.info('fft') # doctest: +SKIP
     *** Found in numpy ***
Core FFT routines
...
     *** Found in numpy.fft ***
 fft(a, n=None, axis=-1)
...
     *** Repeat reference found in numpy.fft.fftpack ***
     *** Total of 3 references found. ***

When the argument is an array, information about the array is printed.

>>> a = np.array([[1 + 2j, 3, -4], [-5j, 6, 0]], dtype=np.complex64)
>>> np.info(a)
class:  ndarray
shape:  (2, 3)
strides:  (24, 8)
itemsize:  8
aligned:  True
contiguous:  True
fortran:  False
data pointer: 0x562b6e0d2860  # may vary
byteorder:  little
byteswap:  False
type: complex64

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