seterr#
- scipy.special.seterr(**kwargs)#
- Set how special-function errors are handled. - Parameters:
- all{‘ignore’, ‘warn’ ‘raise’}, optional
- Set treatment for all type of special-function errors at once. The options are: - ‘ignore’ Take no action when the error occurs 
- ‘warn’ Print a - SpecialFunctionWarningwhen the error occurs (via the Python- warningsmodule)
- ‘raise’ Raise a - SpecialFunctionErrorwhen the error occurs.
 - The default is to not change the current behavior. If behaviors for additional categories of special-function errors are specified, then - allis applied first, followed by the additional categories.
- singular{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for singularities. 
- underflow{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for underflow. 
- overflow{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for overflow. 
- slow{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for slow convergence. 
- loss{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for loss of accuracy. 
- no_result{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for failing to find a result. 
- domain{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for an invalid argument to a function. 
- arg{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for an invalid parameter to a function. 
- other{‘ignore’, ‘warn’, ‘raise’}, optional
- Treatment for an unknown error. 
 
- Returns:
- olderrdict
- Dictionary containing the old settings. 
 
 - See also - geterr
- get the current way of handling special-function errors 
- errstate
- context manager for special-function error handling 
- numpy.seterr
- similar numpy function for floating-point errors 
 - Examples - >>> import scipy.special as sc >>> from pytest import raises >>> sc.gammaln(0) inf >>> olderr = sc.seterr(singular='raise') >>> with raises(sc.SpecialFunctionError): ... sc.gammaln(0) ... >>> _ = sc.seterr(**olderr) - We can also raise for every category except one. - >>> olderr = sc.seterr(all='raise', singular='ignore') >>> sc.gammaln(0) inf >>> with raises(sc.SpecialFunctionError): ... sc.spence(-1) ... >>> _ = sc.seterr(**olderr)