# XXX TO DO:# - popup menu# - support partial or total redisplay# - more doc strings# - tooltips # object browser # XXX TO DO:# - for classes/modules, add "open source" to object browser from TreeWidget import TreeItem, TreeNode, ScrolledCanvas from repr import Repr myrepr = Repr()myrepr.maxstring = 100myrepr.maxother = 100 class ObjectTreeItem(TreeItem):    def __init__(self, labeltext, object, setfunction=None):        self.labeltext = labeltext        self.object = object        self.setfunction = setfunction    def GetLabelText(self):        return self.labeltext    def GetText(self):        return myrepr.repr(self.object)    def GetIconName(self):        if not self.IsExpandable():            return "python"    def IsEditable(self):        return self.setfunction is not None    def SetText(self, text):        try:            value = eval(text)            self.setfunction(value)        except:            pass        else:            self.object = value    def IsExpandable(self):        return not not dir(self.object)    def GetSubList(self):        keys = dir(self.object)        sublist = []        for key in keys:            try:                value = getattr(self.object, key)            except AttributeError:                continue            item = make_objecttreeitem(                str(key) + " =",                value,                lambda value, key=key, object=self.object:                    setattr(object, key, value))            sublist.append(item)        return sublist class InstanceTreeItem(ObjectTreeItem):    def IsExpandable(self):        return True    def GetSubList(self):        sublist = ObjectTreeItem.GetSubList(self)        sublist.insert(0,            make_objecttreeitem("__class__ =", self.object.__class__))        return sublist class ClassTreeItem(ObjectTreeItem):    def IsExpandable(self):        return True    def GetSubList(self):        sublist = ObjectTreeItem.GetSubList(self)        if len(self.object.__bases__) == 1:            item = make_objecttreeitem("__bases__[0] =",                self.object.__bases__[0])        else:            item = make_objecttreeitem("__bases__ =", self.object.__bases__)        sublist.insert(0, item)        return sublist class AtomicObjectTreeItem(ObjectTreeItem):    def IsExpandable(self):        return 0 class SequenceTreeItem(ObjectTreeItem):    def IsExpandable(self):        return len(self.object) > 0    def keys(self):        return range(len(self.object))    def GetSubList(self):        sublist = []        for key in self.keys():            try:                value = self.object[key]            except KeyError:                continue            def setfunction(value, key=key, object=self.object):                object[key] = value            item = make_objecttreeitem("%r:" % (key,), value, setfunction)            sublist.append(item)        return sublist class DictTreeItem(SequenceTreeItem):    def keys(self):        keys = self.object.keys()        try:            keys.sort()        except:            pass        return keys from types import * dispatch = {    IntType: AtomicObjectTreeItem,    LongType: AtomicObjectTreeItem,    FloatType: AtomicObjectTreeItem,    StringType: AtomicObjectTreeItem,    TupleType: SequenceTreeItem,    ListType: SequenceTreeItem,    DictType: DictTreeItem,    InstanceType: InstanceTreeItem,    ClassType: ClassTreeItem,} def make_objecttreeitem(labeltext, object, setfunction=None):    t = type(object)    if dispatch.has_key(t):        c = dispatch[t]    else:        c = ObjectTreeItem    return c(labeltext, object, setfunction) # Test script def _test():    import sys    from Tkinter import Tk    root = Tk()    root.configure(bd=0, bg="yellow")    root.focus_set()    sc = ScrolledCanvas(root, bg="white", highlightthickness=0, takefocus=1)    sc.frame.pack(expand=1, fill="both")    item = make_objecttreeitem("sys", sys)    node = TreeNode(sc.canvas, None, item)    node.update()    root.mainloop() if __name__ == '__main__':    _test()