pyqt – Page 5 – Tarik Billa

Quick and easy: trayicon with python?

May 30, 2023 by Tarik

For Windows & Gnome Here ya go! wxPython is the bomb. Adapted from the source of my Feed Notifier application. import wx TRAY_TOOLTIP = ‘System Tray Demo’ TRAY_ICON = ‘icon.png’ def create_menu_item(menu, label, func): item = wx.MenuItem(menu, -1, label) menu.Bind(wx.EVT_MENU, func, id=item.GetId()) menu.AppendItem(item) return item class TaskBarIcon(wx.TaskBarIcon): def __init__(self): super(TaskBarIcon, self).__init__() self.set_icon(TRAY_ICON) self.Bind(wx.EVT_TASKBAR_LEFT_DOWN, self.on_left_down) def … Read more

Dark theme for Qt widgets?

May 30, 2023 by Tarik

No, but you may use my fairly comprehensive stylesheets that should look excellent on most platforms (it’s inspired by KDE’s Breeze Theme, which is a dark theme that is quite elegant). This was (hard) forked from the excellent QDarkStylesheet, which I felt had theme issues in numerous areas, so I modified it extensively for my … Read more

wxPython vs PyQt vs PyGTK: when and what to use?

May 23, 2023 by Tarik

I’m not really sure what you’re asking. wxPython and pyQt / pyside are probably the easiest to use on all platforms and will look right on most Operating systems. I know wxPython is specifically designed to wrap the native widgets so if you want your app to look native, I think wxPython is the way … Read more

Qt programming: More productive in Python or C++?

May 16, 2023 by Tarik

If one or the other, I’d actually suggest Python in spite of being a C++ enthusiast. With Python code you don’t have to bother with the MOC, portability, build times, etc. Just compare the work involved in implementing a QT slot in C++ vs. PyQT or PySide, e.g. I find it to be much less … Read more

pyqt: how to remove a widget?

May 6, 2023 by Tarik

If your widget have no child widgets that depend on it i think you can use: layout.removeWidget(self.widget_name) self.widget_name.deleteLater() self.widget_name = None in my tests when it is a widget that have childs you have to: import sip layout.removeWidget(self.widget_name) sip.delete(self.widget_name) self.widget_name = None if you don’t have a variable name for the widget at class or … Read more

How do I plot only a table in Matplotlib?

April 22, 2023 by Tarik

This is another option to write a pandas dataframe directly into a matplotlib table: import numpy as np import pandas as pd import matplotlib.pyplot as plt fig, ax = plt.subplots() # hide axes fig.patch.set_visible(False) ax.axis(‘off’) ax.axis(‘tight’) df = pd.DataFrame(np.random.randn(10, 4), columns=list(‘ABCD’)) ax.table(cellText=df.values, colLabels=df.columns, loc=”center”) fig.tight_layout() plt.show()

Convert pyQt UI to python

April 10, 2023 by Tarik

You can use pyuic4 command on shell: pyuic4 input.ui -o output.py

Detecting enter on a QLineEdit or QPushButton

April 8, 2023 by Tarik

For the QLineEdit connect to the returnPressed signal. Alternatively, if you use the setAutoDefault method on your QPushButtons you emit the clicked signal when Enter is pressed on a focused QPushButton: #!/usr/bin/env python #-*- coding:utf-8 -*- import sip sip.setapi(‘QString’, 2) sip.setapi(‘QVariant’, 2) from PyQt4 import QtGui, QtCore class MyWindow(QtGui.QWidget): def __init__(self, parent=None): super(MyWindow, self).__init__(parent) self.pushButtonOK … Read more

Should I use `app.exec()` or `app.exec_()` in my PyQt application?

April 4, 2023 by Tarik

That’s because until Python 3, exec was a reserved keyword, so the PyQt devs added underscore to it. From Python 3 onwards, exec is no longer a reserved keyword (because it is a builtin function; same situation as print), so it made sense in PyQt5 to provide a version without an underscore to be consistent … Read more

Clear all widgets in a layout in pyqt

March 24, 2023 by Tarik

After a lot of research (and this one took quite time, so I add it here for future reference), this is the way I found to really clear and delete the widgets in a layout: for i in reversed(range(layout.count())): layout.itemAt(i).widget().setParent(None) What the documentation says about the QWidget is that: The new widget is deleted when … Read more