python - PyQt : Compiling date/time into window title

Question

如何将编译日期/时间放入窗口标题中？ 下面的示例(当然)不起作用，因为它会将程序启动时的日期和时间放入标题中。 好吧，每次编译新版本时，我都可以在源代码中手动输入日期和时间。然而，我希望有一个智能和自动化的解决方案。有什么想法吗？

代码:

import sys
from datetime import datetime
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QMessageBox 

class MyWindow(QWidget):
    def __init__(self):
        super(MyWindow,self).__init__()
        self.setGeometry(100,100,400,200)
        self.setWindowTitle('Version ' + datetime.now().strftime("%Y%m%d-%H%M"))
        # define button1 
        self.button1 = QPushButton('Push me',self)
        self.button1.move(100,100)
        self.button1.setStyleSheet("background-color: #ddffdd")
        self.button1.clicked.connect(self.button1_clicked)

    def button1_clicked(self):
        msg = QMessageBox()
        msg.setText("This is a message box")
        msg.exec_()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    app.setStyle("plastique")
    window = MyWindow()
    window.show()
    sys.exit(app.exec_())

编译:

pyinstaller --onefile tbMinimalPyQt5.py

.spec 文件

# -*- mode: python -*-

block_cipher = None


a = Analysis(['tbMinimalPyQt5.py'],
             pathex=['C:\\User\\Test'],
             binaries=[],
             datas=[],
             hiddenimports=[],
             hookspath=[],
             runtime_hooks=[],
             excludes=[],
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             cipher=block_cipher)
pyz = PYZ(a.pure, a.zipped_data,
             cipher=block_cipher)
exe = EXE(pyz,
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          name='tbMinimalPyQt5',
          debug=False,
          strip=False,
          upx=True,
          runtime_tmpdir=None,
          console=True )

Answer 1

一种解决方案是在 .spec 中编写一段代码，用数据创建 .py:

# -*- mode: python -*-

import datetime

data = {
  "BUILD_DATE": datetime.datetime.now().strftime("%Y%m%d-%H%M")
}

with open('constants.py', 'w') as f:
    for k, v in data.items():
      f.write("{} = \"{}\"\n".format(k, v))

block_cipher = None


a = Analysis(['tbMinimalPyQt5.py'],
             pathex=['C:\\User\\Test'],
# ...

然后在 .py 中使用编译时生成的值导入文件constants.py:

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QMessageBox 
import constants

class MyWindow(QWidget):
    def __init__(self):
        super(MyWindow,self).__init__()
        self.setGeometry(100,100,400,200)
        self.setWindowTitle('Version ' + constants.BUILD_DATE)
        # define button1 
        self.button1 = QPushButton('Push me',self)
        self.button1.move(100,100)
        self.button1.setStyleSheet("background-color: #ddffdd")
        self.button1.clicked.connect(self.button1_clicked)

    def button1_clicked(self):
        msg = QMessageBox()
        msg.setText("This is a message box")
        msg.exec_()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    app.setStyle("plastique")
    window = MyWindow()
    window.show()
    sys.exit(app.exec_())

最后使用 .spec 进行编译:

pyinstaller tbMinimalPyQt5.spec