I am currently trying to write a User Interface for a program, that is only used via command line. It has several mandatory and optional parameters but you really only need one line to execute it. Now I am wondering how I can "link" my python script to the command line and make it execute the program when I click a "Run-Button".
I am just starting to get into TKinter and Python programming, so I need very basic instructions.
I am on a Linux-System (Ubuntu 16.10) using Python 3.5 and Tkinter.
Thank you.
For command line use, check this module: subprocess
In your GUI code
create a start Button:
Button(master, text='RUN', bg='green',fg='white', command=Run-Button).grid(row=0, pady=4)
and a function definition attached to it:
def Run-Button():
subprocess.call(["ls", "-l"]) #use your command to run
Related
I edited my question, hope it is described better now.
I am working on a software that gives me a nice PDF with lots of matplotlib graphics, depending on the data I get.
So think of a database of pages and then the software decides which pages are chosen and filled with changed images, The text stays the same.
So for instance for data1 I get page1-4 and page7 and page 9. For data2 I get page1-4 and page6. Saved as PDF. I am doing this manually with Quark which needs to be changed. I hope I can figure out the scripting to do so.
But for starters I cant start scribus from the developing enviroment. Eclipse Anaconda on Ubuntu.
import subprocess
subprocess.run('scribus')
works fine in terminal, but gives me an error in Eclipse which I cant figure out.
File "/home/b256/anaconda3/envs/test/lib/python3.7/site.py", line 178
file=sys.stderr)
^
SyntaxError: invalid syntax
This seems to be some Python 2 error in the site.py file
???? Is this some anaconda python path error ??
It's not really clear to me, what you want to achieve, but you're welcome to have a look at a script of mine:
https://github.com/aoloe/scribus-script-repository/blob/master/imposition/imposition.py
This is probably a bit more complex than what you are trying to achieve:
the script gets started from the terminal,
if it notices that it has not been started from inside of Scribus (the exception on import scribus)...
... it starts Scribus with itself as the Script to be run.
the script runs again, this time from inside of Scribus...
... now there is no exception when importing scribus and the body of the script runs.
Of course, it's simpler if you start a script that launches Scribus with other scripts.
For you the most important line is probably:
call(['scribus', '-g', '-py', sys.argv[0]] + arguments + ['--', file])
It's starting Scribus from Python
with as little GUI as possible (-g) and
launches the script sys.argv[0]
with a few arguments and
after the -- tells Scribus what file to open.
I am new with GUI programming in Python 3.x with Tkinter.
I have prepared a GUI where user needs to select options (using OptionMenu widget) and after selection press button to run the final program.
I have saved the user selected data into variables in that GUI program.
But don't know what should I do next...
What I want:
That GUI should be hidden or End after pressing the button.
Run another python script and use those saved variables from that GUI in my script.
How it can be done in python.
You can save your data in another file in order to use it in other script with pickle module.
To save you can do a list with all the variables you want:
import pickle
with open('doc_name.txt','wb') as a:
pickle.dump(saved_variable_list,a)
And in another python script you can use that list of variables:
import pickle
with open('doc_name.txt','rb') as a:
saved_variable_list = pickle.load(a)
Finally to close your GUI you can use the 'destroy' command:
root.destroy()
This seems like a basic question, but I can't seem to find a setting/process for it.
In VSCode's Python extension, there is an option to right-click (or keyboard shortcut) in the editor and Run Current File in Python Interactive Window. This works great.
Is there a way to Run Main File in Python Interactive Window so to speak? If you are building a package/module and are making changing in a non-main file, you currently need to switch back to that main file editor tab before running it as described above.
It would be nice to link module/package files to run the main file from anywhere in the package and not have to switch files in the editor. This would make building/debugging a separate module file much faster using the Python Interactive Window. Thanks
Create a launch option that names the main python file instead of the current file and choose it in the debug/run sidebar.
You might need to set the cwd property to the correct value.
Now when you press F5 the main python file is run.
I try to create a small GUI with tkinter. To make my code more readable I want to split the code in 2 files. One for the GUI information and one for the process informations. Or is it a bad idea?
So I create a gui.py where I import my process informations from program.py.
gui.py:
import tkinter as tk
from program import *
root = tk.Tk()
btn_Start = tk.Button(text="Start", command=start_loop)
btn_Stop = tk.Button(text="Stop", command=stop_loop, state=tk.DISABLED)
btn_Start.grid(row=1, column=0)
btn_Stop.grid(row=1, column=1)
root.mainloop()
program.py:
def start_loop():
print('disable Start button and enable Stop button')
# what is the code to disable the start button and enable the stop button?
def stop_loop():
print('disable Stop button and enable Start button')
# what is the code to disable the stop button and enable the start button?
How do I tell the button the disable/enable information in my program.py file? I do not understand how I get the information from the gui to the program and back to the gui?
Thanks for your help
For such a small program, it is overkill.
Looking at the tkinter programs I've written, all of them are between 200−300 lines. This is including headers, comments and blank lines. The number of actual code lines is 100−200.
In my opinion that is small enough to comfortably handle in an editor in one file.
Looking over most of my source code repositories, the longest Python files tend to top out at around 230 lines of actual code.
Keeping all the code in one file has significant advantages for a program when you need to install it. Just copy the file and you're done. No need for modules and a setup.py.
I am trying to use the input feature on python for my program. I installed SublimeREPL but I still cant seem to figure out how to provide an input for my program. (coming from a complete beginner)
Using input from within an editor can be tricky. A simple solution would be to run your program from the command line. Open a terminal and change into the directory where your script user_inputs_intro.py is located and type:
python user_inputs_intro.py
Now, you will see the Tell me something: and should be able to type something that will be echoed back after you press enter.