Message27

Calling the constructor of a PyObject subclass with arguments will
cause the __repr__() methods to be ignored. JimH hinted that this
would be solved in jpython1.1 (see below).


JPython 1.1beta1 on java1.2.1
Copyright ® 1997-1999 Corporation for National Research Initiatives
>>> import test142j
>>> a = test142j([1.1, 1.2, 1.3])
>>> print len(a)
3
>>> print repr(a)
test142j@442a4904
>>> b = test142j.new([1.1, 1.2, 1.3, 1.4])
>>> print len(b)
4
>>> print repr(b)
1.1, 1.2, 1.3, 1.4,
>>>


-------------------- test142j.java -------------------- 
import org.python.core.*;

public class test142j extends PyObject {
  double[] data;
  int len;
  public test142j(double[] darray) { 
     data=darray;
     len=data.length;
  }   
  public int __len__() {
    return len; 
  }  

  public PyString __repr__() {
    StringBuffer buf = new StringBuffer();
    for(int i=0; i<len; i++) {
      buf.append(data[i]);
      buf.append(", ");
    }
    return new PyString(buf.toString());  
  }

  public static test142j new$(double[] array) {
    return new test142j(array);
  }
}

-------------------- END -------------------- 


On 19981208, JimH wrote:

Your problem is that under the current JPython release, you can't
directly call the constructors of classes that subclass from PyObject
and get the expected result.  This is considered a clear design
mistake in JPython and will be fixed in 1.1.