I have recently downloaded and installed the latest release of PyQt4 for Windows. I have tested some simple PyQt4 examples and have seen no obvious problems. However, I am unable to execute the demos when I follow the directions given in the readme file of the demos:
Finding the PyQt Examples and Demos launcher
============================================
On Windows:
The launcher can be accessed via the Windows Start menu. Select the menu
entry entitled "Examples and Demos" entry in the submenu containing PyQt4.
I have no problem finding and clicking on the "Examples and Demos" entry; but, I am never able to see a demo actually execute. I am using Windows Vista (32-bit) with Python 2.6?
Try to go to <PythonInstallation>\Lib\site-packages\PyQt4\examples in a cmd prompt and see if you can run the examples directly from there. That should at least give you some error messages if it doesn't work.
The louncher should be runnable from demos\qtdemo\qtdemo.pyw, but you also can run the single examples without the louncer.
Related
Okay I am new to Embedded Linux development.
Right now, I am trying to setup the development environment as efficiently as possible.
I have a python code running on a lightweight Linux based device, that is located remotely
So far I was able to setup my VS Code on my Windows system, in such a way that I can edit the files directly on the remote Linux device.
I followed the instructions below
https://code.visualstudio.com/docs/remote/ssh
https://code.visualstudio.com/docs/remote/ssh-tutorial
Now that I am able to edit my files directly, I face only one obstacle.
I find it hard to traverse to a function/method definition.
In my windows system, I could just Ctrl+LeftClick on a method/function, and it would take me there.
But here when I opened VS Code with the terminal running remotely, I have to do a Ctrl+F and search in the VS Code editor, which is like working on a notepad.
Does anyone know how to get around this?
On my main windows system, I am able to jump to method definitions quickly by Ctrl+LefClick-ing them.
Hope the question is clear enough.
Install the Python extension on the remote server and select the Python interpreter on the Linux device in VS code:
Press Ctrl+Shift+P to bring up the command palette and run the command Python: Select Interpreter.
I've successfully installed Eclipse IDE on my HP Chromebook x360 14c, which has Linux Debian. When the installation finished, I got a message on the terminal, talking about the webkit. And when I tried to launch the program, I saw the buttons broken. Fortunately, there was an update button that fixed that up. The IDE opened and I worked well. The second time I try to use it, the buttons and general interface are all broken. You can see the pictures attached to this post. Can anybody give me some help?broken linux interface
terminal message
I'm attempting to play Mabinogi by Nexon on Linux Mint 20 (Ulyana) using Lutris. I've previously used Lutris to play Heroes of the Storm but otherwise don't have much experience with it (or with gaming on Linux, in general). There's no installer on the Lutris website for Mabinogi like there was for Heroes of the Storm, so I was on my own to try and figure everything out.
What I've tried
I started by downloading the Nexon Launcher Installer from their website. I configured Lutris to launch this executable using Wine within a simulated Windows environment. When it first launched I noticed several files were created ("drive_c", "Program Files", "Users", etc -- mimicking a Windows file system). The launcher installer ran without issue and I installed the launcher to "C:\Program Files (x86)\Nexon"
I then re-configured Lutris to try and launch the Nexon Launcher instead of the Nexon Launcher Installer. When I hit "Play" in Lutris, nothing happened. Running ps -ax | grep "Nexon" showed that it was theoretically running, but there was no window or visible UI even after several minutes of waiting. I checked the Lutris logs and noticed a message about a file missing (something like "10000.manifest.hash"). I Google'd this error and found plenty of people in Windows who had trouble running the Nexon Launcher with the same error, and the solution was to just install Mabinogi through Steam.
So next I downloaded the "Wine Steam" runner in Lutris and set this as the runner for Mabinogi, plugging in the app ID (212200). After Steam installed, launched, logged in, and downloaded Mabinogi I tried to launch the game. This time I saw a window pop up saying "Mabinogi is launching" and in the bottom-right the Nexon Game Security icon popped up, but then everything closed and the game never started.
Finally out of desperation I tried setting up a virtual computer using VirtualBox to play the game in its native Windows environment. I installed Windows 7 (the minimum required version according to the Nexon website). I downloaded Mabinogi through Steam on the virtual box. Upon trying to launch Mabinogi, I received the error error: "api-ms-win-crt-runtime-l1-1-0.dll is missing". I'm curious if this error is related to why I couldn't get Mabinogi working in Lutris.
Looking at a game that I had previously played in Lutris (Heroes of the Storm), I noticed a very similar DLL was listed in the "DLL overrides" section: "api-ms-win-crt-private-l1-1-0.dll". So I tried adding the runtime DLL to the overrides in Mabinogi with the same value ("n,b") - but this didn't work.
Looking at the Lutris logs when I try to launch Mabinogi through Wine Steam, there are several errors from \main\game-launch.js:109. I'm not sure if this JS script is part of Lutris of part of the Nexon Launcher, but it could provide some hints. Among the logs the following lines stand out as potentially meaningful:
...
ERROR: ld.so: object '/usr/$LIB/libgamemodeauto.so.0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
...
fixme:d3d12_get_vk_physical_device: Could not find Vulkan physical device for DXGI adapter.
fixme:d3d12_device_caps_init_feature_options1: TotalLaneCount = 2560, may be inaccurate.
...
warn: OpenVR: Failed to locate module
...
What I don't know
I'm not familiar with using Wine and I've never written a Lutris installer. Up until now I've only ever run Linux binaries on Linux and Windows binaries on Windows. So there's a lot I don't understand, like: What's Vulkan? What's DXVK? How do "override DLLs" work? Do I need to provide alternative DLLs for anything I want to override? What does the value "n,b" mean in the DLL override?
I'm welcome to any help
After a lot of work and research, I've gotten as far as I can and figured out where the major road block lies. The simple answer is: You cannot run Mabinogi in Lutris
Mabinogi uses an anti-cheat system that runs in kernel mode (ring 0). Wine runs in user mode (ring 3) and therefore cannot run this anti-cheat program.
The only solution is to play Mabinogi within a virtual machine (e.g. VirtualBox), since VMs run on a hypervisor (which from my understanding is kind of like a "negative" ring number, but effectively ring 0)
If you want to try some other Nexon games, I got the Nexon Launcher working in Lutris / Wine fairly easily. The trick was to download the latest Nexon Launcher since the older one (linked on the Mabinogi website) isn't sending a valid request to download the manifest file so it gets a 403. The latest launcher can be downloaded here: https://games.nexon.net/nexonlauncher
I'm relatively new to using python have used pygame as a place to better understand how everything comes together.
I recently upgraded my laptop form a 2012 Macbook to the 2019.
Just wondering why the games I made on my 2012 are running soo much slower on my 2019 macbook. Managing packages with conda.
I don't know much but I suspect it may have to do with either
The comp resolution upgrade (which I'm doubtful)
method of installation of pygame
Initially, I Downloaded python3 with homebrew and then installed pygame (pygame would show a blank screen)
I then installed conda and managed packages through it.
I doubt it has to do with the way I have written it, I'm sure it's quite inefficient but I was achieving fps's of 60 for the same code.
If someone could guide me to where to find out more information It would be greatly appreciated.
Cheers.
This seems to be a problem with how MacOS run Pygame. While your game is running, right-click it's icon in the Dock and select Show in Finder. Then in the Folder that shows up, you will see the Python Interpreter executable. Right-click it and click Get Info, and under General check the Open in Low Resolution.
Now your game should run fine. And no, Pygame's resolution will not be "Low".
I resolved this issue by launching pygame in fullscreen. More of a workaround but a solution nonetheless.
Also if you do choose to do this be sure to create a key to exit the screen otherwise you'll need to restart your computer.
Qt Designer (5.11.2) crashes on selecting the QWebEngineView-Widget.
I am creating a dialogform for including it in QGIS 3 as .ui file. In the form I want to display a website by using the QWebEngineView.
Sadly I am not able to drag the widget inside the dialog window, because Qt Designer crashes instantly on clicking the QWebEngineView button. The issue appears with Qt Designer provided with QGIS 3.3.0 as well as QGIS 3.2.3.
In the Windows Event Viewer I get the errorcode 0xC0000022.
Is someone stuggling with the same issue and has any ideas for solving it?
I do have the same issue without any use i know about qgis,
Only qtdesigner, that instantly crashes when clicking qtwebs..Ico
Looking everywhere for it, i don't find anything clear.
Bad installs
Missing files
Conflits between envs...
I do have:
Ubuntu 20.04
Python 3.9.9 with classic idle
Qt 5.12.2
Pyqt5 as installed with apt-get
(Even qtwebengine, cause i couldn't install or compile simple in any other without a strong internet connection)