python - 我正在尝试在 python 中运行 sudo 来打开一个应用程序

Question

例如，如果我想在我的 python 脚本上调用 synaptic，这就是我尝试的方法，但 Popen 出现错误。有没有办法用 sudo 而不是 gksu 来完成这项工作？我想使用这种方法在更大的程序中运行脚本。

process = subprocess.Popen("sudo synaptic", 'w', stdout=subprocess.PIPE, bufsize=1).write(password)
TypeError: __init__() got multiple values for keyword argument 'bufsize'

下面是我正在使用的

from PyQt4 import QtGui, QtCore
import os
import sys
import subprocess
# from mainwindow import Ui_MainWindow

class PasswordDialog(QtGui.QDialog):
    def __init__(self, parent=None):
        super(PasswordDialog, self).__init__(parent)
        PasswordDialog.resize(self, 375, 130)
        PasswordDialog.setWindowTitle(self, "Enter Password")
        self.buttonOk = QtGui.QPushButton(self)
        self.buttonOk.setText("OK")
        self.buttonCancel = QtGui.QPushButton(self)
        self.buttonCancel.setText("Cancel")
        self.textEdit = QtGui.QLineEdit(self)
        self.textEdit.setFocus()

        self.label = QtGui.QLabel(self)
        font = QtGui.QFont()
        font.setBold(True)
        font.setWeight(75)
        self.label.setFont(font)
        self.label.setText("Enter your password to perform administrative Tasks")
        self.label.setWordWrap(True)
        self.label_2 = QtGui.QLabel(self)
        self.label_2.setText("Password")
        self.verticalLayout = QtGui.QVBoxLayout(self)
        self.verticalLayout.addWidget(self.label)
        self.horizontalLayout = QtGui.QHBoxLayout(self)
        self.horizontalLayout.addWidget(self.label_2)
        self.horizontalLayout.addWidget(self.textEdit)
        self.verticalLayout.addLayout(self.horizontalLayout)
        self.horizontalLayout2 = QtGui.QHBoxLayout(self)
        self.horizontalLayout2.setAlignment(QtCore.Qt.AlignRight)
        self.horizontalLayout2.addWidget(self.buttonCancel)
        self.horizontalLayout2.addWidget(self.buttonOk)
        self.verticalLayout.addLayout(self.horizontalLayout2)
        self.buttonOk.clicked.connect(self.handleLogin)
        self.buttonCancel.clicked.connect(self.close)

    def handleLogin(self):
        password = self.textEdit.text()
        process = subprocess.Popen("sudo synaptic", 'w').write(password)
        #out = process.stdout.read(1)
        try:
            subprocess.check_call(process)
        except subprocess.CalledProcessError as error:
            print "error code", error.returncode, error.output



if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    login = PasswordDialog()

    if login.exec_() == QtGui.QDialog.Accepted:
        window = Window()
        window.show()
        sys.exit(app.exec_())

Answer 1

我认为您应该使用communicate 将密码发送到sudo 命令。

试试这个:

import subprocess

with subprocess.Popen(["sudo", "synaptic"], stdout=subprocess.PIPE, bufsize=1) as process:
    process.communicate(password)
    process.wait()

process 的值应该是字节串……