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Questions tagged [pyqt4]

PyQt is a set of Python bindings for Qt application framework and runs on all platforms supported by Qt including Windows, MacOS/X and Linux.

PyQt is developed by Riverbank Computing.

It is available on all platforms under a variety of licenses including the GNU GPL (v2 and v3) and a commercial license.

Unlike Qt, PyQt v4 is not available under the LGPL.

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How to install PyQt4 on Windows using pip?

I'm using Python 3.4 on Windows. When I run a script, it complains ImportError: No Module named 'PyQt4' So I tried to install it, but pip install PyQt4 gives Could not find any downloads that satisfy the requirement PyQt4 although it does show up…
Anna
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Background thread with QThread in PyQt

I have a program which interfaces with a radio I am using via a gui I wrote in PyQt. Obviously one of the main functions of the radio is to transmit data, but to do this continuously, I have to loop the writes, which causes the gui to hang. Since I…
gwenger
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How to embed matplotlib in pyqt - for Dummies

I am currently trying to embed a graph I want to plot in a pyqt4 user interface I designed. As I am almost completely new to programming - I do not get how people did the embedding in the examples I found - this one (at the bottom) and that one. It…
ari
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Unable to load files using pickle and multiple modules

I'm trying to create a user system, which uses a setting and Gui module, and when the GUI module requests for the file to load up using pickle, I keep getting an attribute error. this is from the settings module: import pickle import hashlib class…
Inthu
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Should wildcard import be avoided?

I'm using PyQt and am running into this issue. If my import statements are: from PyQt4.QtCore import * from PyQt4.QtGui import * then pylint gives hundreds of "Unused import" warnings. I'm hesitant to just turn them off, because there might be…
Colin
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How do I compile a PyQt script (.py) to a single standalone executable file for windows (.exe) and/or linux?

I started to fiddle with PyQt, and made a "beautiful" script from the pyqt whitepaper example app (pastebin) It works perfectly in Windows and Linux (with qt environment already installed on both). Now my question is: Since I am trying to use Qt…
heltonbiker
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PyQt4.QtCore.pyqtSignal object has no attribute 'connect'

I'm having issues with a custom signal in a class I made. Relevant code: self.parse_triggered = QtCore.pyqtSignal() def parseFile(self): self.emit(self.parse_triggered) Both of those belong to the class: RefreshWidget. In its parent class I…
Dane Larsen
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Clear all widgets in a layout in pyqt

Is there a way to clear (delete) all the widgets in a layout? self.plot_layout = QtGui.QGridLayout() self.plot_layout.setGeometry(QtCore.QRect(200,200,200,200)) self.root_layout.addLayout(self.plot_layout) self.plot_layout.addWidget(MyWidget()) Now…
Falmarri
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2 answers

how to have a directory dialog

In PyQt, how does one display a file browser that shows and selects only directories (not files)? And how does one retrieve the name of the selected directory?
Moayyad Yaghi
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How to pass arguments to functions by the click of button in PyQt?

I want to pass the arguments to a function when I click the button. What should I add to this line button.connect(button, QtCore.SIGNAL('clicked()'), calluser(name)) so it will pass the value to the function: def calluser(name): print name def…
uahmed
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Is it possible to add PyQt4/PySide packages on a Virtualenv sandbox?

I'm using Virtualenv with profit on my development environment with web.py, simplejson and other web oriented packages. I'm going to develop a simple python client using Qt to reuse some Api developed with web.py. Does anybody here had succesfully…
systempuntoout
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How to get text in QlineEdit when QpushButton is pressed in a string?

I am trying to implement a function. My code is given below. I want to get the text in lineedit with objectname 'host' in a string say 'shost' when the user clicks the pushbutton with name 'connect'. How can I do this? I tried and failed. How do I…
esafwan
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Debugging a pyQT4 app?

I have a fairly simple app built with pyqt4. I wanted to debug one of the functions connected to one of the buttons in my app. However, when I do the following python -m pdb app.pyw > break app.pyw:55 # This is where the signal handling function…
Paul Wicks
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No module named when using PyInstaller

I try to compile a Python project under Windows 7 using PyInstaller. The project works fine, there are no issues, however when I try to compile it the result doesn't work. Though I get no warnings during compilation there are many in the…
a_guest
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4 answers

How do you get the current text contents of a QComboBox?

Using pyqt4 and python 2.6, I am using a qcombobox to provide a list of options. I am having problems with using the selected option. I have been able to use a signal to trigger a method when the option is selected, but the problem is that when the…
Ben
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