pyqt

问题 So....I am using the PyQt lib for python to make a Graphics class which abstracts away most of the features of the QtGui class.I"ll be using it later for my other projects.This seems to be working fine,except that the button and the other widgets do not show up,although the window gets created. import sys from PyQt4 import QtGui class Graphics: def __init__(self): self.app=QtGui.QApplication(sys.argv) self.widgets={} self.labels={} self.buttons={} def getApp(self): return self.app def

问题 I've been struggling with this for quite a while. I've managed to write a code that can capture STDOUT of .py files, however when I run the exact same code with executable generated from Pyinstaller (doesn't matter whether it's windowed or not) the readyReadStandardOutput signal doesn't ever come up. From my tests it occurs that any signal at all is emitted only when the app crashes, however I need a live communication between the GUI and the executable. Here's my code for reference: def

问题 I'm currently using QT designer to show a picture on my loading screen. It should look like this: However, it looks like this: This is because for some reason its not showing my picture, when it registers in my IDE that the filepath is correct as seen here: The only time the picture actually shows in my loading GUI is when I use the FULL file path which is: C:\Users\myalt\OneDrive\Desktop\GUINEW\assets\PostmonkeyLogo.png But of course, this is not viable when this software will be used on

问题 I'm currently using QT designer to show a picture on my loading screen. It should look like this: However, it looks like this: This is because for some reason its not showing my picture, when it registers in my IDE that the filepath is correct as seen here: The only time the picture actually shows in my loading GUI is when I use the FULL file path which is: C:\Users\myalt\OneDrive\Desktop\GUINEW\assets\PostmonkeyLogo.png But of course, this is not viable when this software will be used on

问题 I would like to put the text of p.drawText (r.x () + 10, r.y () + 33, '{} / {}'. Format ('tset1', 'test2') condition on the selected QCalendarWidget date. But it is not good. import sys from PyQt5.QtGui import * from PyQt5.QtCore import * from PyQt5.QtWidgets import * class main_window(QWidget): def __init__(self): super(main_window, self).__init__() self.resize(1280, 900) self.Calendar() def Calendar(self): self.cal = QCalendarWidget(self) self.cal.resize(500, 500) self.cal.clicked.connect

问题 I would like to put the text of p.drawText (r.x () + 10, r.y () + 33, '{} / {}'. Format ('tset1', 'test2') condition on the selected QCalendarWidget date. But it is not good. import sys from PyQt5.QtGui import * from PyQt5.QtCore import * from PyQt5.QtWidgets import * class main_window(QWidget): def __init__(self): super(main_window, self).__init__() self.resize(1280, 900) self.Calendar() def Calendar(self): self.cal = QCalendarWidget(self) self.cal.resize(500, 500) self.cal.clicked.connect

问题 I would like to put the text of p.drawText (r.x () + 10, r.y () + 33, '{} / {}'. Format ('tset1', 'test2') condition on the selected QCalendarWidget date. But it is not good. import sys from PyQt5.QtGui import * from PyQt5.QtCore import * from PyQt5.QtWidgets import * class main_window(QWidget): def __init__(self): super(main_window, self).__init__() self.resize(1280, 900) self.Calendar() def Calendar(self): self.cal = QCalendarWidget(self) self.cal.resize(500, 500) self.cal.clicked.connect

问题 I am trying to move from matplotlib to plotting with pyqtgraph because of its touted capabilities to render and save images faster. In my attempts to do this on a cluster with multiprocessors, I run into the following trouble: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-user' qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to any X display. How do I obviate displaying a plot, and save it directly to file? Here's my attempt at the code:

问题 I am going to embed a aiohttp server in a PyQt application, but when I run the code below , the Qt window couldn't show, I know it was caused by web.run_app(app) , I've tried to move it into a thread , but then I got RuntimeError: There is no current event loop in thread 'Dummy-1' , so what should I do ? I've found asyncqt which might help ,but I don't know how to use it to deal with a aiohttp server. from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * from

问题 I am trying to move from matplotlib to plotting with pyqtgraph because of its touted capabilities to render and save images faster. In my attempts to do this on a cluster with multiprocessors, I run into the following trouble: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-user' qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to any X display. How do I obviate displaying a plot, and save it directly to file? Here's my attempt at the code: