Qt for python 快速入门

Qt for Python Quick start

Requirements

• Python 3.6+
• We recommend using a virtual environment, such as venv or virtualenv

Installation

1. Creating and activating an environment

python -m venv env

source env/bin/activate #for Linux and macOS

env\Scripts\activate.bat #for Windows

2. Installation

# Now you are ready to install the Qt for Python packages using pip
# pip 更新到最新版
python -m pip install --upgrade pip
# pip 更新失败 报错“No module named 'pip'”
python -m ensurepip
# 添加国内镜像 加速下载
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple 

pip install pyside6 #for the latest version.

pip install pyside6==6.0 #for the version 6.0 specifically.

#It is also possible to install a specific snapshot from our servers. To do so, you can use the following command:
pip install --index-url=http://download.qt.io/snapshots/ci/pyside/6.0.0/latest pyside6 --trusted-host download.qt.io

3. Test your installation

# Now that you have Qt for Python installed, test your setup by running the following Python constructs to print version information:
import PySide6.QtCore

# Prints PySide6 version
print(PySide6.__version__)

# Prints the Qt version used to compile PySide6
print(PySide6.QtCore.__version__)

4.Create a Simple Application

# import
import sys
import random
from PySide6 import QtCore, QtWidgets, QtGui

#Main Class
class MyWidget(QtWidgets.QWidget):
  def __init__(self):
    super().__init__()

    self.hello = ["Hallo Welt", "Hei maailma", "Hola Mundo", "Привет мир"]

    self.button = QtWidgets.QPushButton("Click me!")
    self.text = QtWidgets.QLabel("Hello World", alignment=QtCore.Qt.AlignCenter)

    self.layout = QtWidgets.QVBoxLayout(self)
    self.layout.addWidget(self.text)
    self.layout.addWidget(self.button)

    self.button.clicked.connect(self.magic)

  @QtCore.Slot()
  def magic(self):
    self.text.setText(random.choice(self.hello))

#Application execution
if __name__ == "__main__":
  app = QtWidgets.QApplication([])

  widget = MyWidget()
  widget.resize(800, 600)
  widget.show()

  sys.exit(app.exec_())

参考文献

qt 官网