导入PyQt4不包括PyQt4.QtCore或QtGui

Question

Why do neither of these statements import QtCore, QtGui, QtNetwork or any of the others? I've searched so long and can't find anyone to answer such a simple question. Or at least that's what I think it is.

import PyQt4
from PyQt4 import *

Instead I have to do:

from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtNetwork import *

Plus a bunch more. Any shortcuts to grab them all?

Edit : My solutions was to go through the libraries that I was using (for Py2exe) and just copy their imports. That worked. Still, but not as tedious.

Answer 1

Don't use import * , namespaces exist for a good reason.

Import the modules you need, in the modules you need them in.

This code might require a few extra letters, but you'd only know QUrl was a Qt module by convention, not surety.

 from PyQt import QtCore
 u = QtCore.QUrl

The above code means when you are examining the second line you know for certain that it is a Qt object from a specific module and nothing else.

Answer 2

如果要将所有PyQt4类导入一个名称空间，则可以执行以下操作：

from PyQt4 import Qt