python GUI输入窗口

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为了解决 sublime text 下 python 的 raw_input() 函数无法起效，便萌生了个用 GUI 窗口来获取输入的想法，一开始想用 Tkinter，后来想了下还是用 PyQt 吧，一来代码量差不到哪里去，二来 Qt 显然更美观一些。封装成一个模块 Input.py:

#!/usr/bin/env python
#-*- coding: utf-8 -*-def getInput(label_str=None):
'''Return the utf-8 string of text that you write in the lineEdit.
label_str: the string as the prompt of the label in the dialog.'''
from PyQt4 import QtGui, QtCore
import sys if label_str == None:
label_str = u'窗口以Unicode编码返回你所输入的信息：'
else:
label_str = unicode(label_str) class MyWindow(QtGui.QDialog): input_str = '' def __init__(self):
QtGui.QDialog.__init__(self)
self.setWindowTitle(u'GUI Input') self.label = QtGui.QLabel(label_str)
self.lineEdit = QtGui.QLineEdit() self.ok = QtGui.QPushButton(u'确定')
self.connect(self.ok, QtCore.SIGNAL('clicked()'), self.getLine) self.clean = QtGui.QPushButton(u'清空')
self.connect(self.clean, QtCore.SIGNAL('clicked()'), self.cleaning) self.cancel = QtGui.QPushButton(u'取消')
self.connect(self.cancel, QtCore.SIGNAL('clicked()'), self.quit) layout = QtGui.QGridLayout()
layout.addWidget(self.label, 0, 0, 1, 4)
layout.addWidget(self.lineEdit, 1, 0, 1, 4)
layout.addWidget(self.ok, 2, 1, 1, 1)
layout.addWidget(self.clean, 2, 2, 1, 1)
layout.addWidget(self.cancel, 2, 3, 1, 1)
self.setLayout(layout) MyWindow.input_str = '' def getLine(self):
MyWindow.input_str = str(self.lineEdit.text().toUtf8())
self.close() def cleaning(self):
self.lineEdit.setText('') def quit(self):
MyWindow.input_str = ''
self.close() app = QtGui.QApplication(sys.argv)
win = MyWindow()
win.show()
app.exec_()
return MyWindow.input_strif __name__ == '__main__':
pre_str = getInput()
now_str = pre_str.decode('utf-8')
print type(pre_str), type(now_str)
print pre_str
# print long(pre_str)
# fp = open(now_str + '.txt', 'wb+')
# fp.close()