Python 将textChanged函数动态连接到添加的类| PyQt5

只有“plugin2.py”文件在工作。忽略“plugin.py”

条目

刚刚连接的最后一个指定的“x”值

我希望我的所有插件都连接到

textChanged

函数。我该怎么办

※如果将

self.x

更改为

x

不工作，但我没有收到任何错误

※如果删除

self.x

变量和类型：

self.entry.textChanged.connect((__import__(plug["name"]).Window().textChangedd))

结果是一样的，不工作，但没有错误

pluginSystem/
    main.py
    plugin.py
    plugin2.py
    package.json

main.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")

#导入
类窗口（QWidget）：
定义初始化（自）：
super（）。\uuuu init\uuuuu（）
self.vBox=QVBoxLayout（）
self.entry=QLineEdit（）
self.vBox.addWidget（self.entry）
将open（“package.json”）作为f：
data=json.load（f）
对于插件数据[“插件”]：
importlib.import_模块（插件[“名称”]）
self.x=（uuu导入_uuu（插件[“名称]）.Window（）.textChangedd）
self.entry.textChanged.connect（self.x）
self.entry.textChanged.connect（self.textChanged）
self.setLayout（self.vBox）
self.show（）
def textChanged（自我，文本）：
如果文本==“关闭”：
app.quit（）
如果名称=“\uuuuu main\uuuuuuuu”：
app=QApplication（sys.argv）
window=window（）
sys.exit（app.exec（））

plugin.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")

从pluginSystem.main导入*
类窗口（QObject）：
定义初始化（自）：
super（）。\uuuu init\uuuuu（）
@pyqtSlot（str）
def textChangedd（自我，文本）：
打印（“blabla”）

plugin2.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")

#与Plugin.py相同

package.json

{
“Plugin”：[{“name”：“Plugin”}，{“name”：“plugin2”}]
}

您的代码不起作用，因为您需要保留对所有这些对象的引用，当您在

self.x

上设置时，以前的引用将丢失

我已经改变了你项目的结构，然后我可以让它在我当地的环境中工作

plugin_system/
    main.py
    plugins/
        plugin.py
        plugin2.py
    package.json

main.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")

plugin.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")

plugin2.py

from PyQt5.QtWidgets import QWidget, QApplication, QLineEdit, QVBoxLayout
import sys
import importlib
import json

class Window(QWidget):

    def __init__(self):
        super().__init__()
        self.vBox = QVBoxLayout()
        self.entry = QLineEdit()
        self.vBox.addWidget(self.entry)
        self.plugins = []

        with open("package.json") as f:
            data = json.load(f)

        for plug in data["Plugin"]:
            plugin_module = importlib.import_module(
                "plugins.{}".format(plug["name"])
            )
            plugin_object = plugin_module.Window()
            self.entry.textChanged.connect(plugin_object.textChangedd)

            #Keeping reference to all of the plugin objects
            self.plugins.append(plugin_object)

        self.entry.textChanged.connect(self.textChanged)

        self.setLayout(self.vBox)
        self.show()

    def textChanged(self, text):
        if text == "close":
            app.quit()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec_())

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla1")

from PyQt5.QtCore import QObject


class Window(QObject):

    def __init__(self, parent=None):
        super().__init__(parent)

    def textChangedd(self, text):
        print("blabla2")