Python webbrowser.open line opens two tabs when it is not supposed to

Question

Below I have the following code which opens the correct URL after opening an incorrect one. I know that the link is not getting generated twice because of the print(link) output. So one link is somehow opening two tabs on my browser and I have no idea why. Any thoughts would be appreciated!

I am running python 3.6 on windows 10.

from PIL import Image, ImageEnhance, ImageFilter
import pyscreenshot as ImageGrab
import pytesseract
import webbrowser
import urllib

# I have other code in the middle that is not important

query = textQ
query_encoded = urllib.parse.quote_plus(query)
link = 'http://google.com/search?q='+ query_encoded
print(link)
webbrowser.open_new_tab(link)

EDIT 1 why does this code below open two tabs?

from PIL import Image, ImageEnhance, ImageFilter
import pyscreenshot as ImageGrab
import pytesseract
import webbrowser
import urllib


pytesseract.pytesseract.tesseract_cmd = 'C:/Program Files (x86)/Tesseract-
OCR/tesseract'


if __name__ == "__main__":
    # part of the screen
    img=ImageGrab.grab()
    img.save('screenshot.png')
#-#


query = "textQ"
query_encoded = urllib.parse.quote_plus(query)
link = 'http://google.com/search?q='+ query_encoded
print(link)
webbrowser.open_new_tab(link)

Answer 1

I came across the same issue, when trying to make links clickable in a text editor. I am using Python 2.7.13 on Windows 10, using gtk in the text editor, and I found events handling to be the cause of my problem.

I suspect your other 'unimportant code' might be causing problems, as I could not reproduce the error with code you put in your question. I don't know if my problem/solution is applicable but I hope it helps:

Problem Identification: The text editor I'm working on detects changes in the text buffer and autosaves. When autosaving it connects a button-press signal to a hyperlink_clicked_handler. So my problem was that a new connection to the handler was done whenever it autosaves (when I edit text). From then on, clicking on a link activates signal handling in multiple handlers, which opens the url in a new tab each, hence opening multiple tabs.

Solution: Check if the handler is already connected before connecting handler, so that only one handler is connected.

Hope this helps