Develop Reference

Applying LiveServer Logic for Tkinter File

The people who are familiar with the Live Server of VS Code, would have easily understood what is the main motive of this question.
But for others, here's the explanation:
Main motive of Live Server is to Automatically Reload Your Site on Save in web development! (Which get changed for python tkinter).
When ever I change something in my python file which contains tkinter code, the change should be reflected in the main window (the main window should not re-open to reflect the changes).
I have tried to search on web as well as on stack over flow, but all the results are for updating value in entry, label, buttons etc. But what I want is, the whole window should be updated when ever I change something in my main file, and the main window should not be reopened to do so. So in short, updating whole window without closing it, on every changes in the main file or automatically reload your program on save without reopening!
What have I tried?:
I tried to detect change in file using os.getsize which satisfied the first part of my question, but however I am not able to solve the second part i.e window should not be closed.
import os
main__tkinter_filename="myfile.py"
initial_filesize=os.path.getsize(main_tkinter_filename) # Getting size of the file for
# comparison.
while 1:
final_filesize=os.path.getsize(main_tkinter_filename)
if final_filsize<intial_filesize or final_filesize>initial_filesize:
webbrowser.open(main_tkinter_filename)
Example:
from tkinter import *
root=Tk()
root.mainloop
results in the below GUI:
If i have added a=Label(text='text')anda.pack() after root=Tk(), it should show me the label, and if i have removed the same code, it should remove them.

I will answer your question by the best of my understanding,
I have some (a few projects of my own, still way too limited) experience with flutter which has hot-reload feature (same as you described above, which you want with python, mainly tkinter), I recently switched to python for gui (Loved it!), so I would like to share my research here:
I was successfully able to set up hot-reload both with kivy (kivymd hot reload, which comes with watchdog and kaki, which works real-time), and with tkinter, while there is a hitch with the later, you will have to press Ctrl + R as to reload the tkinter window, but it works without having to re-run the python program, I will leave the link to the found resources here, hope it helps with your query!
To setup hot-reload with tkinter (requires Ctrl + R), please refer here.
To setup hot-reload with kivy/kivymd (real-time), which I personally prefer, you can find the official docs here.
To mention, I use the above on Manjaro (Arch linux) with pycharm, atom, but I have also tried and have made it run successfully on Windows 10 with vs code (worked like charm)
Hope I could be of help! If you face any problem regarding the same, please feel free to ask! Thanks!

After digging around I have finally found out a way to implement hot reload feature (which #Stange answers provides) but just updating the selected frame or code.
The basic idea is constanly reading the file and executing the selected code, and removing the object in a list which are meant to be removed.
# Live Checker.py
import keyboard
while 1:
if keyboard.is_pressed("Ctrl+r"):
with open('test.py','r') as file:
file_data=file.read()
file_data_start_index=file_data.find("'#Start#'")
file_data_end_index=file_data.find("'#End#'")
exec_command=file_data[file_data_start_index:file_data_end_index]
with open('exec_log.txt','w') as txt_file:
txt_file.write(exec_command)
Here I am constantly checking if if ctrl+r key is pressed, and if pressed
it reads the file,
writes the selected code from the file into a txt file.
I have specified the start and end of the code to be updated by #Start# and #End# respectively.
# Main.py
def check():
with open('exec_log.txt','r') as exec_c:
exec_command=exec_c.read()
if len(exec_command)==0:
pass
else:
print(exec_command)
exec('for i in root.winfo_children():i.destroy()\n'+exec_command)
print('exec')
with open('exec_log.txt','w') as exec_c:
pass
root.update()
root.after(100,check)
root.after(100,check)
And in the main file, i have added the above code which continusly check if exec_log.txt file has any changes, and if changes are there, then it executes them and all so destroys the widget specified in the remove_list.
This is just a temporary solution which in my case helps me to implement the hot reload feature in tkinter.

Python keyboard events - Hide user input and send keys to buffer

Hi,
I am working on a project and I am monitoring the keyboard with the keyboard module.
My application works in real-time (on-the-fly) and read strings entered from user (with the keyboard module as mentioned)
What I want to do is hide user input when some specific conditions are True.
I have searched all the web and didn't manage to find something that does what I want.
To give it a more detailed explanation lets say that the user enters some text and this text string-by-string is being checked for some condition from my program.
If everything is OK, then nothing happens but if not, then I want the next user input not to be shown in the position he is writing.
I found solutions that do exactly this in the terminal like the msvcrt module (How to temporarily disable keyboard input using Python ) or do the above functionality with the input() function.
Is there something that prevent the text ,entered from the keyboard, from showing to the screen, but send it to a buffer for editing first.
Thanks in advance.
! I am on windows

Copying to clipboard without pressing ctrl+c

Background
I have a program that calls various functions based on hotkeys and the clipboard. I am using pyperclip and aoikhotkey. This combination is working very well. However, I would like to improve it even more if possible. Currently, my workflow is as follows:
Highlight target text using my mouse
Press Ctrl+c to put it in the clipboard
Press my hotkey combination to call the function which uses the clipboard content.
I would like to eliminate step 2 and have the function called by the hotkey "scrape" the content on my screen (possibly using mouse or cursor event monitoring).
Question
Does anyone have any ideas about how I can do this? I suspect that I might be able to use Tkinter somehow to accomplish this, but I don't have any experience working with Tkinter, so if anyone has any suggestions or hints, I would be grateful.
Reference
Here's a post asking a similar question, but using the Autohotkey scripting language:
Get Selected Text Without Using the Clipboard
Update
The title of this question was originally "Getting selected text without using the clipboard". However, I changed it because the comments section to this question helped clarify my actual needs and goals.

Select Text without using the Clipboard is i think not possible, you will need the Clipboard to Copy the Text (Ctrl+c) - you can do that with your Keyboard Device by pressing the keys or you can do that by command Send a Hotkey stroke:
pyautogui.hotkey('Ctrl','c')
With python Packages pyautogui and pywinauto - you can send any text or hotkeys without to having to do a pressing on a Keyboard Device. - and if you want to use with your Mouse device you can use AutoPythonLauncher Software with this you can create Clickable Images on the Screen - watch this video Click Here

Access variables from Go in Python and vise versa

My engine is written in GO and I already use SQLITE because I generate some plots that I want to display in a GUI. So far, I think that GO does not have a mature GUI package, so I am building my GUI in Python, with Tkinter that I am familiar with.
When I run my engine in GO with a certain flag, it calls the Python script for the GUI and it generates the content on the background continuously. There are certain modes that the GO engine runs and normally I have to change them by going back to the terminal that runs GO (different plots etc).
What I want, is to create action buttons in my Python GUI that they will change those flags/variables values and the GO script will generate different plots for example, without me going back to the terminal that runs the GO engine and manually do it.
So far, the only implementation from my side, was to create another SQLITE database and save my settings there. Then, when I press an action button at my GUI, it changes the value at my Settings Database and GO reads this value from there all the time, instead of waiting me to input it.
Is there any better way of doing it, passing a variable value(flag etc) from one programming language to the other(Python-GO) without using a database?
The variables that I am changing from the GUI are strings in general and I am asking this question because I think that it is a waste of resources to do it the way I do it.

How to send the text pasted in a textbox of a html webpage to the application written in python in the harddisk?

I have a application running in python, i want to send the input taken from the text box of the webpage and send it as input to the application and once again the output of the application which is in text format back to the result page on web.
thanks a lot for your time :) :)

Here's my suggestion: modify your program to include a button for doing the transformation. When you click it, it should take the contents of the clipboard, do whatever transformation you want, and put the result back on the clipboard.
Once you do that, to use it you select the text from the widget, use the keyboard to copy it to the clipboard, press the button on the GUI, then click back in the widget and use the keyboard to paste.
Alternately, your program can just poll the clipboard every couple of seconds, do the transformation and put the results back (make sure your automatic polling ignores any changes caused by itself). With that you can do a select-all, copy, wait a couple seconds, then paste.
This is pretty trivial to do in both Tkinter and wxPython, and I would guess it is equally trivial with most other GUI toolkits.

Have you tried PyQt4 which has this ability built-in? You can do what you're asking in about ten LOC.