pyqt

问题 I wanted to use a decorator to handle exceptions in my PyQt5 application: def handle_exceptions(func): def func_wrapper(*args, **kwargs): try: print(args) return func(*args, **kwargs) except Exception as e: print(e) return None return func_wrapper class MainWindow(QMainWindow): def __init__(self): QMainWindow.__init__(self) loadUi("main_window.ui",self) self.connect_signals() def connect_signals(self): self.menu_action.triggered.connect(self.fun) @handle_exceptions def fun(self): print("hello

问题 I am trying to find open ports and add them to my menu. Right now, what I succeed having an action to my menu (like, "find ports"), and only if it's clicked - it will connect to my function that gets all free ports. Unfortunately, that's not what I am looking for. I want to click on the menu title , and get all port in my menu. Below is the code I have: This is the GUI part: from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow

问题 I'm trying to install and use PyQt5 on my Windows 10 computer. Actually, it's already installed but IDLE does not recognize the package. I tried to import PyQt5 after I installed it but I got an import error. Then I tried something else: pip install pyqt5 Here, I got a syntax error. Does anybody have an idea what's the problem? Thanks in advance. 回答1: Installing Python 3.6.6 & PyQt5 on Windows (10) Python3.6.6: Download & Install Python 3.6.6 https://www.python.org/downloads/windows/ PyQt5:

问题 I'm trying to install and use PyQt5 on my Windows 10 computer. Actually, it's already installed but IDLE does not recognize the package. I tried to import PyQt5 after I installed it but I got an import error. Then I tried something else: pip install pyqt5 Here, I got a syntax error. Does anybody have an idea what's the problem? Thanks in advance. 回答1: Installing Python 3.6.6 & PyQt5 on Windows (10) Python3.6.6: Download & Install Python 3.6.6 https://www.python.org/downloads/windows/ PyQt5:

问题 For my PyQt5 project, I am using the QWebEngineView , but certain videos, such as .mp4 videos won't play. Can I install the codecs with pip , or pass a certain argument through QApplication() or something similar in order to fix this problem? I installed PyQt5 through pip , so I don't have the C:\Qt\... files, only the PyQt5 , pyqt5_tools folders in Appdata\Local\Programs\Python\Python37\Lib\site-packages . I am using Python 3.7.2 , and PyQt5.11 回答1: The pyqtwebengine provided by pypi does

问题 In this very simple PyQt based Python program start button does not work, it seems that there is no connection between the start button and _calculateResult method. I think something in _connectSignals() method is wrong, but I cannot find it. Do you have any idea about it? Thanks. import sys from PyQt5.QtCore import Qt from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QLineEdit, QPushButton, QHBoxLayout class TimerUi(QMainWindow): def __init__(self): super().__init__() self

问题 I'm using pyqt4. I have a class multi inherited from QObject and QRunnable like this: class DownloadTask(QObject, QRunnable): def __init__(self): QObject.__init__(self) QRunnable.__init__(self) self.setAutoDelete(False) When an instance of DownloadTask is initializing, the last line throws exception: TypeError: could not convert 'DownloadTask' to 'QRunnable' But I think it is correct in grammer, QRunnable has the method setAutoDelete. Why can't it convert to QRunnable? Update: I intend to use

问题 I'm using pyqt4. I have a class multi inherited from QObject and QRunnable like this: class DownloadTask(QObject, QRunnable): def __init__(self): QObject.__init__(self) QRunnable.__init__(self) self.setAutoDelete(False) When an instance of DownloadTask is initializing, the last line throws exception: TypeError: could not convert 'DownloadTask' to 'QRunnable' But I think it is correct in grammer, QRunnable has the method setAutoDelete. Why can't it convert to QRunnable? Update: I intend to use

问题 I dont understand the Qt5 Documentation in the TableWidgetItem-Chapter. I cant get the right parameters to set my freshly created TableCell as editable. I've got this piece of code for i, item in enumerate(event_desc, start=0): print(i, item) key = QTableWidgetItem(list(event_desc)[i]) value = QTableWidgetItem(event_desc[item]) value.setFlags( * what's to insert here? * ) tw.insertRow(i) tw.setItem(i, 0, key) tw.setItem(i, 1, value) The first param should be *self, the 2nd one is named 'Union

问题 I'm trying create an executable from my code that uses PyQt5. I'm using Python 3.5.3 -64 bits, developing in Windows 10, and used pip to install pyinstaller 3.2.1. I run pyinstaller as such: pyinstaller.exe --onefile --windowed main.py I get an Import Error: File "C:\Python35\Scripts\pyinstaller-script.py", line 11, in <module> load_entry_point('PyInstaller==3.2.1', 'console_scripts', 'pyinstaller')() File "C:\Python35\lib\site-packages\pkg_resources\__init__.py", line 565, in load_entry