Source Code for Module vqt.qpython

 1  '''
 
 2  Home of some helpers for python interactive stuff.
 
 3  ''' 
 4  import types 
 5  import traceback 
 6  
 
 7  from threading import Thread 
 8  from PyQt4 import QtCore, QtGui 
 9  
 
10  from vqt.main import idlethread 
11  from vqt.basics import * 
12  
 
13  @idlethread 
14 -def scripterr(msg, info): 
15      msgbox = QtGui.QMessageBox() 
16      msgbox.setText('Script Error: %s' % msg) 
17      msgbox.setInformativeText(info) 
18      msgbox.exec_() 
19  
 
20 -class ScriptThread(Thread): 
21  
 
22 -    def __init__(self, cobj, locals): 
23          Thread.__init__(self) 
24          self.setDaemon(True) 
25          self.cobj = cobj 
26          self.locals = locals 
27  
 
28 -    def run(self): 
29          try: 
30              exec(self.cobj, self.locals) 
31          except Exception, e: 
32              scripterr(str(e), traceback.format_exc()) 
33  
 
34 -class VQPythonView(QtGui.QWidget): 
35  
 
36 -    def __init__(self, locals=None, parent=None): 
37          if locals == None: 
38              locals = {} 
39  
 
40          self._locals = locals 
41  
 
42          QtGui.QWidget.__init__(self, parent=parent) 
43  
 
44          self._textWidget = QtGui.QTextEdit(parent=self) 
45          self._botWidget = QtGui.QWidget(parent=self) 
46          self._help_button = QtGui.QPushButton('?', parent=self._botWidget) 
47          self._run_button = QtGui.QPushButton('Run', parent=self._botWidget) 
48          self._run_button.clicked.connect(self._okClicked) 
49          self._help_button.clicked.connect( self._helpClicked )  
50  
 
51          self._help_text = None 
52  
 
53          hbox = HBox( None, self._help_button, self._run_button ) 
54          self._botWidget.setLayout( hbox ) 
55  
 
56          vbox = VBox( self._textWidget, self._botWidget ) 
57          self.setLayout( vbox ) 
58  
 
59          self.setWindowTitle('Python Interactive') 
60  
 
61 -    def _okClicked(self): 
62          pycode = str(self._textWidget.document().toPlainText()) 
63          cobj = compile(pycode, "vqpython_exec.py", "exec") 
64          sthr = ScriptThread(cobj, self._locals) 
65          sthr.start() 
66  
 
67 -    def _helpClicked(self): 
68          withhelp = [] 
69          for lname,lval in self._locals.items(): 
70              if type(lval) in (types.ModuleType, ): 
71                  continue 
72              doc = getattr(lval, '__doc__', '\nNo Documentation\n') 
73              if doc == None: 
74                  doc = '\nNo Documentation\n' 
75              withhelp.append( (lname, doc) ) 
76  
 
77          withhelp.sort() 
78  
 
79          txt = 'Objects/Functions in the namespace:\n' 
80          for name,doc in withhelp: 
81              txt += ( '====== %s\n' % name ) 
82              txt += ( '%s\n' % doc ) 
83  
 
84          self._help_text = QtGui.QTextEdit() 
85          self._help_text.setReadOnly( True ) 
86          self._help_text.setWindowTitle('Python Interactive Help') 
87          self._help_text.setText( txt ) 
88          self._help_text.show() 
89