"Open with"

# a simple code to show how to open a file by:
# "open with" context menu option.
# "drag" and drop a text file on the .exe file
# .exe built with pyinstaller
# author: David Emanuel Sandoval

from tkinter import *
from tkinter.scrolledtext import *
import sys

def main():
    root = Tk()
    text = ScrolledText(root)
    text.pack(expand=YES, fill=BOTH)
    root.mainloop()

if __name__ == '__main__':
    try:
        f = open(sys.argv[1])
        content = f.read()
        f.close()
        root = Tk()
        text = ScrolledText(root)
        text.insert(0.0, content)
        text.pack(expand=YES, fill=BOTH)
        root.mainloop()

    except:
        main()