I'm trying to hide the Terminal when I launch a GUI Tkinter based app, but when I double click the app.py file on OSX, the Terminal window appears. I've tried changing the extension to .pyw and tried launching it with /usr/bin/pythonw, but no matter what, the Terminal window still appears.
I've even tried adding the try/except below, but when I run it I get the error: 'invalid command name "console"' in the Terminal window that appears.
from Tkinter import *
class MainWindow(Tk):
def __init__(self):
Tk.__init__(self)
try:
self.tk.call('console', 'hide')
except TclError, err:
print err
win = MainWindow()
win.mainloop()
I haven't been able to find any way to hide the Terminal window from appearing. Anybody got any ideas?
By double-clicking a .py file on OS X, you are likely launching a Python gui instance via the Python Launcher.app supplied with OS X Pythons. You can verify that by selecting the .py file in the Finder and doing a Get Info on it. Python Launcher is a very simple-minded app that starts Python via a Terminal.app command. To directly launch your own Python GUI app, the preferred approach is to create a simple app using py2app. There's a brief tutorial here.
EDIT:
There are other ways, of course, but most likely any of them would be adding more levels of indirection. To make a normal launchable, "double-clickable" application, you need some sort of app structure. That's what py2app lets you create directly.
A very simple-minded alternative is to take advantage of the AppleScript Editor's ability to create a launcher app. In the AppleScript editor:
/Applications/Utilities/AppleScript
Editor.app in OS X 10.6
/Applications/AppleScript/Script
Editor.app in 10.5
make a new script similar to this:
do shell script "/path/to/python /path/to/script.py &> /dev/null &"
and then Save As.. with File Format -> Application. Then you'll have a double-clickable app that will launch another app. You can create something similar with Apple's Automater.app. But, under the covers, they are doing something similar to what py2app does for you, just with more layers on top.
Adding to the answer by Ned Deily, im my case when I tried to launch the Python application using an AppleScript application, it did not work initially. I discovered that it has something to to with some kind of encoding error (I am using UTF-8 and in the past I had felt need to configure it to UTF-8).
So, after further investigation, I discovered that I can accomplish this by creating an AppleScript application with the following code (adjusting the paths of python3 and of the Python application as needed):
do shell script "export LC_ALL=en_US.UTF-8; export LANG=en_US.UTF-8; /usr/local/bin/python3 '/Users/USER/FOLDER/SCRIPT.py' &> /dev/null &"
It launches the Python application without any Terminal windows. The AppleScript application can then be personalised with a custom icon as usual, and can be placed in the Dock. When clicked, it will launch the Python intepreter, that still shows up in Dock, but with no visible windows.
I think this may be useful to other users.
'console hide' doesn't hide the Terminal in OS X. It hides Tk's built-in console, which is really a relic from the MacOS Classic days (and which is still commonly used on Windows).
Related
I am writing a python3 app, running with a GUI (not in the terminal) as the user. While this app is running as the user, I need to also execute a command that requires root privileges. I've seen numerous examples of how to do this in the terminal, like this one, which does in fact work great in the terminal:
import subprocess
subprocess.call('sudo echo "Hello world!"', shell=True)
...but my python app is not running in the terminal, and this method doesn't seem to automatically provoke a visible system prompt when my GUI code calls it.
Other apps, notably the Snap Store, somehow launch what appears to be a system popup when they need to do something with root privileges. For example, when I use the Snap Store to install Notepad++ on Ubuntu, I get this popup, which I suspect is a system popup rather than something the Snap Store folks custom-designed.
I'm not super familiar with Linux systems, but I assume this is not a custom popup instead of a system popup because who wants to give their root password to the makers of one of their apps? Instead, users would be giving it to the system (which already knows it), and the 3rd-party app itself doesn't have access to the actual password, but can now run a command as root.
How can I launch an identical popup from my Python app in order to run a command that requires root privileges? Or, alternatively, how else can I run a root command from my python GUI running as the user?
Thanks in advance for any clear assistance you can provide!
Have you tried pkexec?
Not sure about your GUI but running a simple python script (python3.8, pycharm, ubuntu 18.04) results in the popup you desire (can't do the screen print of the pop-up).
import os
os.system("pkexec ls -l")
I've scoured the interwebs and couldn't find anything with python, android, and "shortcut" or "home-screen" to appear on the same page. I have pydroid3 installed, working great. I'd like to have a shortcut (ideally on the home-screen) that I can tap once and have it run without opening the IDE for editing.
Making a shortcut to the file, or opening a source file in the file manager will at best just open it in the pydroid3 IDE, at worst state "this file type is not supported."
At the beginning of the script, I have tried putting "#!/user/data/../pydroid_dir/python", but alas the OS doesn't realize I mean to run it directly in the python interpreter. Any solutions or alternative lines of thinking are appreciated!
EDIT
I'm running an unrooted android 9 PIE. I wanted to provide some more details but not quite a solution for any readers. Check out related question: How to create a homescreen shortcut to launch a shell script?. Closest I got was trying SManager which allows you to create a homescreen shortcut to a shell script. Your shell script could be hardcoded to call python on your script:
/path/to/python /path/to/python/script
Unfortunately, if you're phone is not rooted, you may not have permission to execute whatever version of python you're calling outside of the context of the app it was installed for. Also, you have to ensure that your shell and python scripts reside in an appropriate place for execution. If your phone is rooted, SManager seems to have options to let you run the script as root.
pydroid3 allows me to run scripts residing on my internal storage as well as lets them read and write files at that location. That's why I was hoping that there was a pydroid way to create a shortcut (or an alternative python app that does this) since it has appropriate privileges.
QPython OL lets you create home screen shortcuts to python scripts on Android. First tap on the 'Q' icon at the top of the main screen (it took me a while to realise this was a button), then long-press on the script you want. This should give you a prompt to create a shortcut, as in the screenshots below.
QPython 3L also claims to have similar functionality when you long-press a script in its 'Programs' section. At time of writing (Jun 20) this seems to be broken.
I've not tried Pydroid myself, but haven't come across anything claiming it could create script shortcuts either.
You can use Termux:Widget as a command line to execute a python script. In Termux you can not create GUI with tkinter. You have to launch X-Server with VNC Mobile client. The widget is like a small shell prompt.
I have an application I run using pythonw.exe. I just click on my .pyw file and it runs. It's using Qt and I have set up an icon that both shows in the window and in the taskbar.
However when I try to pin it, it pins the python IDLE incorrectly instead of the application itself. It makes some sense since it is a python file run from pythonw.exe. Example below:
So how do I proceed to run the application the right way so I can pin it to the taskbar?
As eryksun said you need a shortcut with pythonw.exe "Path to pyw file" in target.
I have made a GUI for my application. All scripts are in Python (2.7) and the GUI is created with Tkinter. I work on Linux, but I needed this app to be executable on Windows. So I've used py2exe, to create an executable. After a while it is working almost perfectly, but I have the following problem:
Somewhere in the application, I need to call external programs, namely ImageMagick and LaTeX. I use the commands convert, pdflatex, simply by importing os module and running os.system(build), where build = 'convert page.pdf page.gif'etc. When those commands are called from the *.exe application the console pops up (meaning a console window opens up for a split of a second and closes again). Is there a way, to prevent this behaviour?
It does not interrupt the application, but it is ugly and not a desired behaviour.
[Note] I chose not to add any samples, since there are lots of files and other content, which, I think, is not related to the problem. I could however try to post minimal (not)working example. But maybe it is not needed.
Thanks!
import subprocess
subprocess.Popen("application.exe", shell = True)
I am trying to use Curses in PyDev in Eclipse in Win7.
I have installed Python 3.2 (64bit) and curses-2.2.win-amd64-py3.2. When I input the following testing codes into PyDev:
import curses
myscreen = curses.initscr()
myscreen.border(0)
myscreen.addstr(12, 25, "Python curses in action!")
myscreen.refresh()
myscreen.getch()
curses.endwin()
It did not show any syntax error, so I think the curses was installed correctly.
However, when I ran it as Python Run, the output showed: Redirection is not supported. I do not know where this problem comes from. I googled a lot but can't find related information.
Recent PyCharm versions (I am currently running 2017.2, not sure when this option was added, or if it has been there the entire time) have the option "Emulate terminal in output console". Curses works with this option checked.
You cannot expect to use curses with a non-terminal.
Probably you get this because you are running the script from inside an IDE, like PyCharm or any other.
All IDEs do provide consoles that are not terminals, so that's where the problem comes from.
For a Pycharm user the solution given by codeape works fine :
Snapshot
You can't use any IDE to run python files with the curses package. I used to run in pycharm and naturally couldn't run.
Change to the command line to run:
for testing follow my following steps
on desktop open notepad and copy paste the code and save it as filename.py
open command line change directory to desktop use below command cd Desktop and hit enter type python example.py and hit enter, your program will definitely run
My workaround is to create a Run Configuration that calls a curses script. The little overhead is worth not having to switch to the terminal and manually run the script hundreds of times a session. I use Intellij but I imagine the process should be similar in PyCharm.
The desired result is the convenience of a button to run the script:
First create a script that calls the entry script, for instance:
ptyhon name-of-script.py
Then, to create a configuration for each script:
Go to Edit configuration.
Click the plus button and add a Shell Script.
Enter the path to a shell script.
Here is a picture of a directory with a couple of sample scripts.
I use this process to view my progress. My curses scripts are very modest so fortunately I can live without a debugger.