Undefined variable from import when using wxPython in pydev

I just downloaded wxPython, and was running some of the sample programs from here. However, on every line that uses a variable from wx.*, I get a "Undefined variable from import error"

 例如：

import wx 
class MyFrame(wx.Frame): 
    """ We simply derive a new class of Frame. """ 
    def __init__(self, parent, title): 
        wx.Frame.__init__(self, parent, title=title, size=(200,100)) 
        self.control = wx.TextCtrl(self, style=wx.TE_MULTILINE) 
        self.Show(True) 
app = wx.App(False) 
frame = MyFrame(None, 'Small editor') 
app.MainLoop() 

　　

解决办法：

删除pydev，然后重新在Window->Preferences->Pydev->Interpreter-Python进行配置即可。

down vote

PyDev finds the references when you setup the interpreter in Window->Preferences->Pydev->Interpreter-Python If wxPython was not in your site-packages directory when you first setup the interpreter, then the references to the wx objects and names will not be known to the editor lookup function.  To fix this, remove the interpreter from Window->Preferences->Pydev->Interpreter-Python and then select new.  Re-add the python installation again and press apply.  At this time, Pydev will import all of the site-package objects again and should populate the lookup dictionary.  You'll want to restart Eclipse for changes to take place.