Python-сообщество

# ... imports
# ...
class Thread(QThread):
   def run(self):
      time.sleep(5)
class MainWindow(QMainWindow):
   def __init__(self):
      # ... ui
      self.thread = Thread()
      self.thread.start()
# ...
app = QApplication([])
mainwindow = MainWindow()
mainwindow.show()
sys.exit(app.exec_())

from PyQt4 import QtGui, QtCore
import time, sys
# ... imports
# ...
class Thread(QtCore.QThread):
   def run(self):
      print "Start"
      time.sleep(5)
      print "End"
class MainWindow(QtGui.QMainWindow):
   def __init__(self):
      super(MainWindow,self).__init__()
      # ... ui
      self.thread = Thread()
      self.thread.start()
# ...
app = QtGui.QApplication([])
mainwindow = MainWindow()
print "Continue"
mainwindow.show()
sys.exit(app.exec_())

# весь импорт кроме PySide отключен
class StartDatabaseThread(QThread):
	end = Signal(bool)
	def __init__(self):
		super(StartDatabaseThread, self).__init__()
	def start(self):
		print('start thread')
		# логика для теста закомментирована
		time.sleep(7)
		self.end.emit(True)
		print('end thread')
class MainWindow(QMainWindow):
	def __init__(self):
		# создание интерфейса отключено
		self.databaseInit()
	def databaseInit(self):
		# оставляем только запуск потока
		self.startDatabaseThread = StartDatabaseThread()
		self.startDatabaseThread.end.connect(self.databaseStarted)
		self.databaseStart()
	def databaseStart(self):
		self.startDatabaseThread.start()
		print('thread end?')
	@Slot(bool)
	def databaseStarted(self, ok):
		# signal from thread