IPython 커널을 PyQt4 프로그램에 임베드하는 방법은 무엇입니까?

Question

따라서 to this PR on github에 따르면 PyQt4 프로그램에 커널을 내장 할 수있는 기능이 이제 마스터에 있습니다. 아무도 실제로 그것을하는 방법의 예를 줄 수 있습니까? 문서를 찾을 수 없습니다. 이 이전 시도가있었습니다 : epatter's gist하지만 가져올 수 없기 때문에 모듈 이름이 변경되었을 것입니다.

Answer 1

이 코드는 도움이됩니다.

#!/usr/bin/env python 
# Set the QT API to PyQt4 
import os 
os.environ['QT_API'] = 'pyqt' 
import sip 
sip.setapi("QString", 2) 
sip.setapi("QVariant", 2) 
from PyQt4.QtGui import * 
# Import the console machinery from ipython 
from IPython.qt.console.rich_ipython_widget import RichIPythonWidget 
from IPython.qt.inprocess import QtInProcessKernelManager 
from IPython.lib import guisupport 

class QIPythonWidget(RichIPythonWidget): 
    """ Convenience class for a live IPython console widget. We can replace the standard banner using the customBanner argument""" 
    def __init__(self,customBanner=None,*args,**kwargs): 
     if customBanner!=None: self.banner=customBanner 
     super(QIPythonWidget, self).__init__(*args,**kwargs) 
     self.kernel_manager = kernel_manager = QtInProcessKernelManager() 
     kernel_manager.start_kernel() 
     kernel_manager.kernel.gui = 'qt4' 
     self.kernel_client = kernel_client = self._kernel_manager.client() 
     kernel_client.start_channels() 

     def stop(): 
      kernel_client.stop_channels() 
      kernel_manager.shutdown_kernel() 
      guisupport.get_app_qt4().exit()    
     self.exit_requested.connect(stop) 

    def pushVariables(self,variableDict): 
     """ Given a dictionary containing name/value pairs, push those variables to the IPython console widget """ 
     self.kernel_manager.kernel.shell.push(variableDict) 
    def clearTerminal(self): 
     """ Clears the terminal """ 
     self._control.clear()  
    def printText(self,text): 
     """ Prints some plain text to the console """ 
     self._append_plain_text(text)   
    def executeCommand(self,command): 
     """ Execute a command in the frame of the console widget """ 
     self._execute(command,False) 


class ExampleWidget(QWidget): 
    """ Main GUI Widget including a button and IPython Console widget inside vertical layout """ 
    def __init__(self, parent=None): 
     super(ExampleWidget, self).__init__(parent) 
     layout = QVBoxLayout(self) 
     self.button = QPushButton('Another widget') 
     ipyConsole = QIPythonWidget(customBanner="Welcome to the embedded ipython console\n") 
     layout.addWidget(self.button) 
     layout.addWidget(ipyConsole)   
     # This allows the variable foo and method print_process_id to be accessed from the ipython console 
     ipyConsole.pushVariables({"foo":43,"print_process_id":print_process_id}) 
     ipyConsole.printText("The variable 'foo' and the method 'print_process_id()' are available. Use the 'whos' command for information.")       

def print_process_id(): 
    print 'Process ID is:', os.getpid()   

def main(): 
    app = QApplication([]) 
    widget = ExampleWidget() 
    widget.show() 
    app.exec_()  

if __name__ == '__main__': 
    main()