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これは単純な/愚かなエラーであるか、すでに回答があった場合、私はお詫びします。私はプログラミングに非常に慣れていて、自分自身を教育しています。これは私の最初の質問stackoverflowですので、もし私があなたの詳細情報が必要か、私の質問が明確ではないことを教えてください。pyqt4 lineの空白値が返されます
私のコードは、私の行編集フィールドに入力したIPアドレスを取得することができません。関数 "readip"では、私はlineEditの値を取得しようとしていますが、 ip = str（gui.lineEdit.text（））およびip = str（gui.lineEdit.text）。 ip = str（gui.lineEdit.text）は私にオブジェクトのメモリスロットを与えますが、IPアドレスは与えません。
私のアプリケーションからコードを添付しています。私がやっているものを私に教えてください間違っ
これは私の主な用途である：以下
import Gui
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import PyQt4
import subprocess
import time
import os
import sys
from threading import Thread
class Gui(QDialog,Gui.Ui_mGui):
def __init__(self,parent=None):
global ip
super(Gui,self).__init__(parent)
self.setupUi(self)
self.connect(self.instructionButton, SIGNAL("clicked()"), self.showInstructions)
Gui.connect(self.serviceButton, SIGNAL("clicked()"), backendServiceClass)
self.checkBox.stateChanged.connect(self.autostartService)
if self.checkBox.isChecked():
print "The AutoStartService Button was checked"
#backendService()
else:
print "The AutoStartService Button was not checked"
def readip(self):
global ip
gui=Gui()
ip=str(gui.lineEdit.text())
print ip
time.sleep(1)
print"test"
print ip
time.sleep(20)
def showInstructions(self):
QMessageBox.information(self,"Instructions","Enter the IP address of a mobile device you carry with you always.The Application would check whether it can reach that device using your wireless network. If the device is unreachable, it would put the computer to sleep!")
def autostartService(self):
if self.checkBox.isChecked():
autoStartService=1
TrackAutoStartService = open("AutoStartService", "w+")
TrackAutoStartService.write(str(autoStartService))
TrackAutoStartService.close
print "Autostart Service Checked"
print autoStartService
else:
autoStartService = 0
TrackAutoStartService = open("AutoStartService", "w+")
TrackAutoStartService.write(str(autoStartService))
TrackAutoStartService.close
print "Autostart Service Unchecked"
print autoStartService
class backendServiceClass(Thread,Gui):
def __init__(self,parent=None):
Thread.__init__(self)
self.daemon = True
self.start()
def run(Gui):
global loop
global ip
Gui.readip()
print ip
print ip
TrackIP = open("TrackIP", "w+")
TrackIP.write(ip)
TrackIP.close
if loop==1:
loop=0
#Gui.serviceButton.setText("Start Service")
else:
loop=1
#Gui.serviceButton.setText("Stop Service")
print("ping -n 1 -w 1000 " + ip)
down = 0
while loop==1:
try:
response = subprocess.check_output(
['ping', '-n', '1', '-w', '2000', ip],
stderr=subprocess.STDOUT, # get all output
universal_newlines=True, # return string not bytes
shell=True,
creationflags=subprocess.SW_HIDE
)
except subprocess.CalledProcessError:
response = None
if (response != None):
down = 0
time.sleep(1)
print ("The host" + ip + " is Alive!")
else:
down = down + 1
time.sleep(1)
print (down)
if (down == 10):
print ("a total of " + str(down) + "pings has been lost")
down = 0
time.sleep(10)
os.system("shutdown -h")
global loop
loop=0
app=QApplication(sys.argv)
form=Gui()
form.show()
app.exec_()
あるGui.py
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Gui.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!
from PyQt4 import QtCore, QtGui
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_mGui(object):
def setupUi(self, mGui):
mGui.setObjectName(_fromUtf8("mGui"))
mGui.resize(246, 308)
mGui.setMinimumSize(QtCore.QSize(246, 308))
mGui.setMaximumSize(QtCore.QSize(246, 309))
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap(_fromUtf8(":/image/logo.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
mGui.setWindowIcon(icon)
self.checkBox = QtGui.QCheckBox(mGui)
self.checkBox.setGeometry(QtCore.QRect(20, 140, 201, 20))
f = open("AutoStartService", "r+")
AutoStartService = int(f.read())
if AutoStartService == 1:
self.checkBox.setChecked(True)
else:
self.checkBox.setChecked(False)
self.checkBox.setObjectName(_fromUtf8("checkBox"))
self.SleeperLabel = QtGui.QLabel(mGui)
self.SleeperLabel.setGeometry(QtCore.QRect(90, 10, 131, 51))
font = QtGui.QFont()
font.setFamily(_fromUtf8("Harlow Solid Italic"))
font.setPointSize(28)
font.setBold(False)
font.setItalic(True)
font.setWeight(50)
self.SleeperLabel.setFont(font)
self.SleeperLabel.setObjectName(_fromUtf8("SleeperLabel"))
self.SleeperLabel_2 = QtGui.QLabel(mGui)
self.SleeperLabel_2.setGeometry(QtCore.QRect(10, 10, 71, 61))
font = QtGui.QFont()
font.setFamily(_fromUtf8("Harlow Solid Italic"))
font.setPointSize(28)
font.setBold(False)
font.setItalic(True)
font.setWeight(50)
self.SleeperLabel_2.setFont(font)
self.SleeperLabel_2.setText(_fromUtf8(""))
self.SleeperLabel_2.setPixmap(QtGui.QPixmap(_fromUtf8(":/image/logo64x64.png")))
self.SleeperLabel_2.setObjectName(_fromUtf8("SleeperLabel_2"))
self.serviceButton = QtGui.QPushButton(mGui)
self.serviceButton.setGeometry(QtCore.QRect(10, 260, 101, 31))
self.serviceButton.setObjectName(_fromUtf8("serviceButton"))
self.instructionButton = QtGui.QPushButton(mGui)
self.instructionButton.setGeometry(QtCore.QRect(130, 260, 101, 31))
self.instructionButton.setObjectName(_fromUtf8("instructionButton"))
self.label = QtGui.QLabel(mGui)
self.label.setGeometry(QtCore.QRect(20, 210, 151, 16))
self.label.setObjectName(_fromUtf8("label"))
self.label_2 = QtGui.QLabel(mGui)
self.label_2.setGeometry(QtCore.QRect(20, 80, 171, 16))
self.label_2.setObjectName(_fromUtf8("label_2"))
self.checkBox_2 = QtGui.QCheckBox(mGui)
self.checkBox_2.setGeometry(QtCore.QRect(20, 160, 221, 20))
self.checkBox_2.setObjectName(_fromUtf8("checkBox_2"))
self.label_3 = QtGui.QLabel(mGui)
self.label_3.setGeometry(QtCore.QRect(20, 190, 151, 16))
self.label_3.setObjectName(_fromUtf8("label_3"))
self.lineEdit = QtGui.QLineEdit(mGui)
self.lineEdit.setGeometry(QtCore.QRect(20, 98, 181, 31))
self.lineEdit.setObjectName(_fromUtf8("lineEdit"))
self.retranslateUi(mGui)
QtCore.QMetaObject.connectSlotsByName(mGui)
def retranslateUi(self, mGui):
mGui.setWindowTitle(_translate("mGui", "Sleeper V3.0", None))
self.checkBox.setText(_translate("mGui", "Autostart Service at Application start", None))
self.SleeperLabel.setText(_translate("mGui", "Sleeper", None))
self.serviceButton.setText(_translate("mGui", "Start Service", None))
self.instructionButton.setText(_translate("mGui", "Instructions", None))
self.label.setText(_translate("mGui", "Currently Tracking the device :", None))
self.label_2.setText(_translate("mGui", "IP Address of your Mobile Device", None))
self.checkBox_2.setText(_translate("mGui", "Autostart Application at System Startup", None))
self.label_3.setText(_translate("mGui", "Service Status :", None))
f1 = open("TrackIP", "r+")
IP = str(f1.read())
if IP != "":
self.lineEdit.setText(_translate("mGui", IP, None))
self.lineEdit.setPlaceholderText(_translate("mGui", "Mobile IP", None))
import xz_rc
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
mGui = QtGui.QWidget()
ui = Ui_mGui()
ui.setupUi(mGui)
mGui.show()
sys.exit(app.exec_())
あなたはさらに情報が必要な場合は私に知らせてください
PY、新しい 'Gui'インスタンスを作成する必要はありません。 'self'を使う：' self.lineEdit.text（） ' – Crispin