Attributes

Use the method getAttrib to retrieve the value of one or more controls. Its synopsis is one of the following:

getAttrib(attr)
getAttrib([attr1, attr2, ..., attrk])
getAttrib(attr1, attr2, ..., attrk)
getAttrib()

The first form is for obtaining the value of the attribute attr. The output will be the value of the attribute. The second and third forms are for retrieving attr1 , attr2 , ..., and attrk. Whether the attributes are declared in a list or a tuple does not matter. The result will be a dictionary coupling each attribute with its value. The last form is to obtain all attributes; the result is a dictionary coupling all attributes with their respective value.

A list of all attributes can be found on the Xpress Optimizer's reference manual. As for controls, the attribute parameters to be passed in getAttrib are lower-case strings. For a problem p the call will be as follows:

nrows = p.getAttrib('rows')
problemsize = p.getAttrib('rows', 'cols')