dictionaryviewer.py

import sys
import cPickle
from PyQt4.QtCore import *
from PyQt4.QtGui import *

data = {'root': {'persons': {'person': [{'name': {'last': 'bar', 'first': 'foo'}}, {'name': {'last': 'bar', 'first': 'baz'}}]}}}

def fill_item(item, value):
    item.setExpanded(True)
    if type(value) is dict:
        for (key, val) in sorted(value.iteritems()):
            child = QTreeWidgetItem()
            child.setText(0, unicode(key))
            item.addChild(child)
            fill_item(child, val)
    elif type(value) is list:
        for val in value:
            child = QTreeWidgetItem()
            item.addChild(child)
            if type(val) is dict:
                child.setText(0, '[dict]')
                fill_item(child, val)
            elif type(val) is list:
                child.setText(0, '[list]')
                fill_item(child, val)
            else:
                child.setText(0, unicode(val))
            child.setExpanded(True)
    else:
        child = QTreeWidgetItem()
        child.setText(0, unicode(value))
        item.addChild(child)


def fill_widget(widget, value):
    widget.clear()
    fill_item(widget.invisibleRootItem(), value)
def main():
    dictionary = {}
    if len(sys.argv) > 2:
        with open(sys.argv[1]) as dict_file:
            dictionary = cPickle.load(dict_file.read())
    app = QApplication(sys.argv)


    widget = QTreeWidget()
    fill_widget(widget, dictionary)
    widget.show()
    sys.exit(app.exec_())

if __name__ == "__main__":
    main()