Chromedriver launch new tab

[gahhon]

Then how can i use yahoo.py to control the chrome browser opened by google.py?

It would be a separate process if thats the way you did it. But it depends on how you programmed it to communicate back and forth. If you plan on having it in the background, then it wouldnt matter except for more resource use. However, I would just merge them all; and handle each button press with adding a new tab of whatever that button was associated with to a single browser.

At first my planning is that if my GUI design is based on Python.
But due to Python can't create fancy GUI, so I use another software to design the GUI.
Then the buttons in the GUI will trigger the .exe file. But I am not sure that button can trigger particular functions only. :/