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如何执行“使用Python和Qt进行快速GUI编程”示例的PyQt?

[英]How can I execute PyQt the sample of “Rapid GUI Programming with Python and Qt”?

我是一名新的编码学习者。 我使用《用Python和Qt快速进行GUI编程》一书来学习PyQt。 但是,我发现我无法执行书中给出的示例(.py文件)。 几乎所有样品都无法打开。

这是样本之一

#!/usr/bin/env python
# Copyright (c) 2007-8 Qtrac Ltd. All rights reserved.

# This program or module is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation, either version 2 of the License, or
# version 3 of the License, or (at your option) any later version. It is
# provided for educational purposes and is distributed in the hope that
# it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
# the GNU General Public License for more details.

import random
from PyQt4.QtCore import *
from PyQt4.QtGui import *


if random.choice((1, 2)) == 1:
    import ui_ticketorderdlg1 as ui_ticketorderdlg
else:
    import ui_ticketorderdlg2 as ui_ticketorderdlg


class TicketOrderDlg(QDialog,
        ui_ticketorderdlg.Ui_TicketOrderDlg):

    def __init__(self, parent=None):
        super(TicketOrderDlg, self).__init__(parent)
        self.setupUi(self)
        today = QDate.currentDate()
        self.whenDateTimeEdit.setDateRange(today.addDays(1),
                                   today.addYears(1))
        self.updateUi()
        self.customerLineEdit.setFocus()


    @pyqtSignature("QString")
    def on_customerLineEdit_textEdited(self, text):
        self.updateUi()


    @pyqtSignature("double")
    def on_priceSpinBox_valueChanged(self, value):
        self.updateUi()


    @pyqtSignature("int")
    def on_quantitySpinBox_valueChanged(self, value):
        self.updateUi()


    def updateUi(self):
        amount = self.priceSpinBox.value() * \
                 self.quantitySpinBox.value()
        enable = not self.customerLineEdit.text().isEmpty() and amount
        self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(enable)
        self.amountLabel.setText("$ %0.2f" % amount)


    def result(self):
        when = self.whenDateTimeEdit.dateTime().toPyDateTime()
        return (unicode(self.customerLineEdit.text()), when,
                self.priceSpinBox.value(), self.quantitySpinBox.value())


if __name__ == "__main__":
    import sys

    app = QApplication(sys.argv)
    form = TicketOrderDlg()
    form.show()
    app.exec_()
    print(form.result())

我使用Windows命令并输入:“ python -m ticketorderdlg.py”,它返回如下:

C:\Python34\python.exe: Error while finding spec for 'ticketorderdlg.py'
    (<class 'AttributeError'>: 'module' object has no attribute '__path__')

我能做什么? 请帮我!

python版本:3.4; PyQt版本:适用于Python v3.4(x32)的GPL v4.11.4

您必须在没有参数m情况下执行:

python ticketorderdlg.py

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