Python
# -*- coding: cp1251 -*-
#file aaa.py
 
import sys
from PyQt4 import QtCore, QtGui
 
class _MimeData(QtCore.QMimeData):
  u"Класс поддержки клипбоарда"
  format_templ = u'application/x-python-mime;value="%s"'
  obj = None
  format_name = ''
  def __init__(self, obj):
    super(_MimeData, self).__init__()
    self.obj = obj
    self.format_name = self.format_templ % obj.__class__.__name__
 
  def hasFormat(self, mimetype):
    if mimetype in (self.format_name, u'text/plain'):
      return True
    return QtCore.QMimeData.hasFormat(self, mimetype)
 
  def formats(self):
    base_formats = QtCore.QMimeData.formats(self)
    return list(set(list(base_formats) + [self.format_name, u'text/plain']))
 
  def retrieveData(self, mimetype, preferredType):
    print 'retrieveData(%s, %s)' %(mimetype, preferredType)
    if mimetype == self.format_name:
      return QtCore.QVariant(self.obj)
    if mimetype == u'text/plain':
      return QtCore.QVariant(u'%s' % self.obj)
    return QtCore.QMimeData.retrieveData(self, mimetype, preferredType)
 
def main():
  app = QtGui.QApplication(sys.argv)
  print 'copy data to clipboard'
  data1 = _MimeData(['aaa', 'bbb', 'ccc'])
  QtGui.QApplication.clipboard().setMimeData(data1)
  print 'paste data from clipboard'
  data2 = QtGui.QApplication.clipboard().mimeData()
  text = data2.text()
  print text
 
if __name__ == '__main__':
  main()
 

C:\Lang>aaa.py
copy data to clipboard
paste data from clipboard
retrieveData(text/plain, 10)
['aaa', 'bbb', 'ccc']

C:\Lang\test\python\qtClipb>aaa.py
2008-12-01 14:04:22.971000 copy data to clipboard
!>2008-12-01 14:04:29.148000 retrieveData(text/plain, 10)

2008-12-01 14:04:34.668000 paste data from clipboard
2008-12-01 14:04:34.668000 retrieveData(text/plain, 10)
['aaa', 'bbb', 'ccc']

C:\Lang\test\python\qtClipb>bbb.py
2008-12-01 14:04:29.123000 paste data from clipboard
2008-12-01 14:04:29.150000 ['aaa', 'bbb', 'ccc']

Python
# -*- coding: cp1251 -*-
#file aaa.py
import sys
from datetime import datetime
from PyQt4 import QtCore, QtGui
 
#Работа с клипбоардом.
class _MimeData(QtCore.QMimeData):
  u"Класс поддержки клипбоарда"
  format_templ = u'application/x-python-mime;value="%s"'
  obj = None
  format_name = ''
  def __init__(self, obj):
    super(_MimeData, self).__init__()
    self.obj = obj
    self.format_name = self.format_templ % obj.__class__.__name__
 
  def hasFormat(self, mimetype):
    if mimetype in (self.format_name, u'text/plain'):
      return True
    return QtCore.QMimeData.hasFormat(self, mimetype)
 
  def formats(self):
    base_formats = QtCore.QMimeData.formats(self)
    return list(set(list(base_formats) + [self.format_name, u'text/plain']))
 
  def retrieveData(self, mimetype, preferredType):
    print '%s retrieveData(%s, %s)' %(datetime.now(), mimetype, preferredType)
    if mimetype == self.format_name:
      return QtCore.QVariant(self.obj)
    if mimetype == u'text/plain':
      return QtCore.QVariant(u'%s' % self.obj)
    return QtCore.QMimeData.retrieveData(self, mimetype, preferredType)
 
def main():
  app = QtGui.QApplication(sys.argv)
  print datetime.now(), 'copy data to clipboard'
  data1 = _MimeData(['aaa', 'bbb', 'ccc'])
  QtGui.QApplication.clipboard().setMimeData(data1)
  raw_input('!>')
  print datetime.now(), 'paste data from clipboard'
  data2 = QtGui.QApplication.clipboard().mimeData()
  text = data2.text()
  print text
 
if __name__ == '__main__':
  main()
 

Python
# -*- coding: cp1251 -*-
#file bbb.py
import sys
from datetime import datetime
from PyQt4 import QtCore, QtGui
 
def main():
  app = QtGui.QApplication(sys.argv)
  print datetime.now(), 'paste data from clipboard'
  data2 = QtGui.QApplication.clipboard().mimeData()
  text = data2.text()
  print datetime.now(), text
 
if __name__ == '__main__':
  main()