Question

在以下代码下运行时出现错误，似乎父窗口有问题。由于错误消息框而导致错误后，应用程序立即崩溃

QObject :: setParent：无法设置父对象，新的父对象位于另一个线程中

QObject :: startTimer：无法从另一个线程启动计时器

分段错误（核心已转储）

def error_box(self, error_message):
    error_alert = QtWidgets.QErrorMessage(self.mainwindow)
    error_alert.setWindowTitle("ERROR")
    error_alert.showMessage(error_message)

def start_method(self, provided_email):
    def provision_card():
        self.lineEdit.setReadOnly(1)
        self.pushButton.setEnabled(False)
        self.pushButton_2.setEnabled(False)
        self.textEdit.setStyleSheet("QTextEdit {color:black}")
        self.textEdit.append(" Email Address Entered : "+provided_email+"\n")
        os.chdir(Path)
        dark_pcc = "java -jar *.jar | tee -i stdout.txt"
        p = subprocess.Popen(dark_pcc, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE)
        line = p.stdout.readline().rstrip()
        print (line)
        self.textEdit.append(str("\n"+line.decode()))

        input_string = provided_email+'\ny\ny\n'
        line2 = p.communicate(input=input_string.encode())[0]
        print (line2.decode())
        self.textEdit.append("\n"+line2.decode())

        stdout = Path+"stdout.txt"
        f = open(stdout, 'r')
        for line in f:
            if re.match("(.+)completed successfully(.+)", line):
                self.textEdit.setStyleSheet("QTextEdit {color:Green}")
                self.lineEdit.clear()
            elif re.match("(.+)ailed(.+)", line):
                self.textEdit.setStyleSheet("QTextEdit {color:red}")
                self.error_box("FAILED\n"+line)

        self.lineEdit.setFocus(True)
        os.remove(stdout)
        self.lineEdit.setReadOnly(0)
        self.pushButton.setEnabled(True)
        self.pushButton_2.setEnabled(True)
    multi = threading.Thread(target=provision_card)
    multi.setDaemon(True)
    multi.start()

QObject :: setParent：无法设置父级，新的父级在另一个线程中分段故障（核心已转储）

0 个答案: