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Module « numpy.matlib »

Fonction geterrcall - module numpy.matlib

Signature de la fonction geterrcall

def geterrcall() 

Description

help(numpy.matlib.geterrcall)

Return the current callback function used on floating-point errors.

When the error handling for a floating-point error (one of "divide",
"over", "under", or "invalid") is set to 'call' or 'log', the function
that is called or the log instance that is written to is returned by
`geterrcall`. This function or log instance has been set with
`seterrcall`.

Returns
-------
errobj : callable, log instance or None
    The current error handler. If no handler was set through `seterrcall`,
    ``None`` is returned.

See Also
--------
seterrcall, seterr, geterr

Notes
-----
For complete documentation of the types of floating-point exceptions and
treatment options, see `seterr`.

Examples
--------
>>> import numpy as np
>>> np.geterrcall()  # we did not yet set a handler, returns None

>>> orig_settings = np.seterr(all='call')
>>> def err_handler(type, flag):
...     print("Floating point error (%s), with flag %s" % (type, flag))
>>> old_handler = np.seterrcall(err_handler)
>>> np.array([1, 2, 3]) / 0.0
Floating point error (divide by zero), with flag 1
array([inf, inf, inf])

>>> cur_handler = np.geterrcall()
>>> cur_handler is err_handler
True
>>> old_settings = np.seterr(**orig_settings)  # restore original
>>> old_handler = np.seterrcall(None)  # restore original

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