I cant figure out how to store value from filedialog.askopenfilename. Now i saved the value to local variable but i want to work with this value later in other functions. I cant return the this value because i call function when i am creating the button. However i want to avoid using global variable. How can i do this? Is there some other way? Here is code:
from tkinter import Tk, StringVar, ttk
from tkinter import filedialog
from tkinter import messagebox
def browse_files():
filename = filedialog.askopenfilename(initialdir = "/",
title = "Select a File",
filetypes = (("Text files",
"*.txt*"),
("all files",
"*.*")))
print(filename)
root = Tk()
button1 = ttk.Button(root,text='Browse', command=browse_files)
button1.grid(row=0,column=0)
CodePudding user response:
Below is an example using class and instance variable:
from tkinter import Tk, ttk
from tkinter import filedialog
class App(Tk):
def __init__(self):
super().__init__()
self.filename = None
button1 = ttk.Button(self, text='Browse', command=self.browse_files)
button1.grid(row=0, column=0)
button2 = ttk.Button(self, text='Show', command=self.show)
button2.grid(row=0, column=1)
def browse_files(self):
# use instance variable self.filename
self.filename = filedialog.askopenfilename(initialdir="/",
title="Select a File",
filetypes=(("Text files", "*.txt*"),
("all files", "*.*")))
def show(self):
print(self.filename)
root = App()
root.mainloop()