org.python.core

## Class PyClass

- java.lang.Object
- - org.python.core.PyObject
  - - org.python.core.PyClass

All Implemented Interfaces:
  java.io.Serializable, Traverseproc

    public class PyClass
    extends PyObject
    implements Traverseproc

The classic Python class.

See Also:
  Serialized Form

### Nested Class Summary

### Nested classes/interfaces inherited from class org.python.core.PyObject

`PyObject.ConversionException`

### Field Summary

Fields
`PyTuple` `__bases__` The base classes of this class
`PyObject` `__dict__` Holds the namespace for this class
`java.lang.String` `__name__` The name of this class
`static PyType` `TYPE`

### Fields inherited from class org.python.core.PyObject

`gcMonitorGlobal`

### Method Summary

All Methods Static Methods Instance Methods Concrete Methods
`PyObject` `__call__(PyObject[] args, java.lang.String[] keywords)` The basic method to override when implementing a callable object.
`int` `__cmp__(PyObject other)` Equivalent to the standard Python __cmp__ method.
`void` `__delattr__(java.lang.String name)` A variant of the __delattr__ method which accepts a String as the key.
`PyObject` `__findattr_ex__(java.lang.String name)` Attribute lookup hook.
`void` `__rawdir__(PyDictionary accum)`
`void` `__setattr__(java.lang.String name, PyObject value)` A variant of the __setattr__ method which accepts a String as the key.
`PyString` `__str__()` Equivalent to the standard Python __str__ method.
`static PyObject` `classobj___new__(PyNewWrapper new_, boolean init, PyType subtype, PyObject[] args, java.lang.String[] keywords)`
`static PyObject` `classobj___new__(PyObject name, PyObject bases, PyObject dict)`
`PyObject` `fastGetDict()` xxx implements where meaningful
`boolean` `isCallable()`
`boolean` `isSubClass(PyClass superclass)`
`void` `noAttributeError(java.lang.String name)` Customized AttributeError for class objects.
`boolean` `refersDirectlyTo(PyObject ob)` Optional operation.
`void` `setBases(PyObject value)`
`void` `setDict(PyObject value)`
`void` `setName(PyObject value)`
`java.lang.String` `toString()`
`int` `traverse(Visitproc visit, java.lang.Object arg)` Traverses all directly contained `PyObject`s.

### Methods inherited from class org.python.core.PyObject

`__abs__, __add__, __and__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __call__, __coerce__, __coerce_ex__, __complex__, __contains__, __delattr__, __delete__, __delitem__, __delitem__, __delslice__, __delslice__, __dir__, __div__, __divmod__, __ensure_finalizer__, __eq__, __findattr__, __findattr__, __finditem__, __finditem__, __finditem__, __float__, __floordiv__, __format__, __ge__, __get__, __getattr__, __getattr__, __getitem__, __getitem__, __getnewargs__, __getslice__, __getslice__, __gt__, __hash__, __hex__, __iadd__, __iand__, __idiv__, __idivmod__, __ifloordiv__, __ilshift__, __imod__, __imul__, __index__, __int__, __invert__, __ior__, __ipow__, __irshift__, __isub__, __iter__, __iternext__, __itruediv__, __ixor__, __le__, __len__, __long__, __lshift__, __lt__, __mod__, __mul__, __ne__, __neg__, __nonzero__, __not__, __oct__, __or__, __pos__, __pow__, __pow__, __radd__, __rand__, __rdiv__, __rdivmod__, __reduce__, __reduce_ex__, __reduce_ex__, __repr__, __rfloordiv__, __rlshift__, __rmod__, __rmul__, __ror__, __rpow__, __rrshift__, __rshift__, __rsub__, __rtruediv__, __rxor__, __set__, __setattr__, __setitem__, __setitem__, __setitem__, __setslice__, __setslice__, __sub__, __tojava__, __truediv__, __trunc__, __unicode__, __xor__, _add, _and, _callextra, _cmp, _div, _divmod, _doget, _doget, _doset, _eq, _floordiv, _ge, _gt, _iadd, _iand, _idiv, _idivmod, _ifloordiv, _ilshift, _imod, _imul, _in, _ior, _ipow, _irshift, _is, _isnot, _isub, _itruediv, _ixor, _jcall, _jcallexc, _jthrow, _le, _lshift, _lt, _mod, _mul, _ne, _notin, _or, _pow, _rshift, _sub, _truediv, _xor, asDouble, asIndex, asIndex, asInt, asInt, asIterable, asLong, asLong, asName, asName, asString, asString, asStringOrNull, asStringOrNull, bit_length, conjugate, delDict, delType, dispatch__init__, equals, fastGetClass, getDict, getType, hashCode, implementsDescrDelete, implementsDescrGet, implementsDescrSet, invoke, invoke, invoke, invoke, invoke, invoke, isDataDescr, isIndex, isInteger, isMappingType, isNumberType, isSequenceType, object___subclasshook__, readonlyAttributeError, setType`

### Methods inherited from class java.lang.Object

`getClass, notify, notifyAll, wait, wait, wait`

### Field Detail

#### TYPE

    public static final PyType TYPE

#### __dict__

    public PyObject __dict__

Holds the namespace for this class

#### __bases__

    public PyTuple __bases__

The base classes of this class

#### __name__

    public java.lang.String __name__

The name of this class

### Method Detail

#### classobj___new__

    public static PyObject classobj___new__(PyNewWrapper new_,
                                            boolean init,
                                            PyType subtype,
                                            PyObject[] args,
                                            java.lang.String[] keywords)

#### classobj___new__

    public static PyObject classobj___new__(PyObject name,
                                            PyObject bases,
                                            PyObject dict)

#### fastGetDict

    public PyObject fastGetDict()

Description copied from class: `PyObject`
xxx implements where meaningful

Overrides:
  `fastGetDict` in class `PyObject`
Returns:
  internal object per instance dict or null

#### __findattr_ex__

    public PyObject __findattr_ex__(java.lang.String name)

Description copied from class: `PyObject`
Attribute lookup hook. If the attribute is not found, null may be returned or a Py.AttributeError can be thrown, whatever is more correct, efficient and/or convenient for the implementing class. Client code should use `PyObject.__getattr__(String)` or `PyObject.__findattr__(String)`. Both methods have a clear policy for failed lookups.

Overrides:
  `__findattr_ex__` in class `PyObject`
Returns:
  The looked up value. May return null if the attribute is not found

#### __setattr__

    public void __setattr__(java.lang.String name,
                            PyObject value)

Description copied from class: `PyObject`
A variant of the __setattr__ method which accepts a String as the key. This String must be interned.

Overrides:
  `__setattr__` in class `PyObject`
Parameters:
  `name` - the name whose value will be set - must be an interned string .
  `value` - the value to set this name to
See Also:
  `PyObject.__setattr__(PyString, PyObject)`

#### __delattr__

    public void __delattr__(java.lang.String name)

Description copied from class: `PyObject`
A variant of the __delattr__ method which accepts a String as the key. This String must be interned. By default, this will call `__delattr__(PyString name)` with the appropriate args. The only reason to override this method is for performance.

Overrides:
  `__delattr__` in class `PyObject`
Parameters:
  `name` - the name which will be removed - must be an interned string .
See Also:
  `PyObject.__delattr__(PyString)`

#### __rawdir__

    public void __rawdir__(PyDictionary accum)

#### noAttributeError

    public void noAttributeError(java.lang.String name)

Customized AttributeError for class objects.

Overrides:
  `noAttributeError` in class `PyObject`

#### __call__

    public PyObject __call__(PyObject[] args,
                             java.lang.String[] keywords)

Description copied from class: `PyObject`
The basic method to override when implementing a callable object. The first len(args)-len(keywords) members of args[] are plain arguments. The last len(keywords) arguments are the values of the keyword arguments.

Overrides:
  `__call__` in class `PyObject`
Parameters:
  `args` - all arguments to the function (including keyword arguments).
  `keywords` - the keywords used for all keyword arguments.

#### isCallable

    public boolean isCallable()

Overrides:
  `isCallable` in class `PyObject`

#### __cmp__

    public int __cmp__(PyObject other)

Description copied from class: `PyObject`
Equivalent to the standard Python __cmp__ method.

Overrides:
  `__cmp__` in class `PyObject`
Parameters:
  `other` - the object to compare this with.
Returns:
  -1 if `this<o`; 0 if `this==o`; +1 if `this>o`; -2 if no comparison is implemented

#### __str__

    public PyString __str__()

Description copied from class: `PyObject`
Equivalent to the standard Python __str__ method. The default implementation (in `PyObject`) calls `PyObject.__repr__()`, making it unnecessary to override `__str__` in sub-classes of `PyObject` where both forms are the same. A common choice is to provide the same implementation to `__str__` and `toString`, for consistency in the printed form of objects between Python and Java.

Overrides:
  `__str__` in class `PyObject`

#### toString

    public java.lang.String toString()

Overrides:
  `toString` in class `PyObject`

#### isSubClass

    public boolean isSubClass(PyClass superclass)

#### setDict

    public void setDict(PyObject value)

Overrides:
  `setDict` in class `PyObject`

#### setBases

    public void setBases(PyObject value)

#### setName

    public void setName(PyObject value)

#### traverse

    public int traverse(Visitproc visit,
                        java.lang.Object arg)

Description copied from interface: `Traverseproc`
Traverses all directly contained `PyObject`s. Like in CPython, `arg` must be passed unmodified to `visit` as its second parameter. If `Visitproc.visit(PyObject, Object)` returns nonzero, this return value must be returned immediately by traverse. `Visitproc.visit(PyObject, Object)` must not be called with a `null` PyObject-argument.

Specified by:
  `traverse` in interface `Traverseproc`

#### refersDirectlyTo

    public boolean refersDirectlyTo(PyObject ob)

Description copied from interface: `Traverseproc`
Optional operation. Should only be implemented if it is more efficient than calling `Traverseproc.traverse(Visitproc, Object)` with a visitproc that just watches out for `ob`. Must return `false` if `ob` is `null`.

Specified by:
  `refersDirectlyTo` in interface `Traverseproc`