Can't get my Application running after adding a tkinter interface - python-3.x

Question

Both my application's "motor" in Python 3.7.0 and my tkinter interface work without a hitch by themselves. The problem starts when I put the two together.
The following is a very simplified version of the beginning of my application, but it illustrates the basic problem:
from tkinter import *
request={} # this get more than just one piece of info.
def init():
global request
request['dir'] = text1.get()
# The real interface has:
# 2 Entry Widgets: file extention and keyword.
# 2 Buttons: Select Directory and Organize Files.
# this here is minimal interface
w = Tk()
text1 = StringVar()
Label(text=' Folder ').grid(row=0,column=0)
Entry(textvariable = text1).grid(row=0,column=1) # gets the input
Button(text='Organize', command=init).grid(row=4,column=0)
w.mainloop()
# End of interface.
# ---------- Script starts here ----------------
# here I import several built-in and several personal modules like phps and helpers
# this modules have a whole bunch of functions.
# ----------- VARIABLE ASSIGNMENT ------------- ##
# Here is where I need the interface and the script to connect.
# Path to the directory that will be looped through
BaseDir=request[0]+'/*'
extRequired=request[1] # txt or docs, etc.
# a part of the basename e.g. my new filename keyword = "my new"
Keyword=request[2]
# more vars ....
## ----------- SEARCH DIRECTORY ------------- ##
files=glob.glob(BaseDir)
for file in files:
# EXTRACT file INFO
info=phps.pathinfo(file) # phps is a module I made.
# EXCLUDE Directories
if not os.path.isdir(file):
# SERACH for the Keyword
Keyword_Exist = info['basename'].find(Keyword)
# IS the KEYWORD in the String?
if Keyword_Exist > -1 and info["ext"]==extRequired:
RawfName = info["filename"][3:]
## USE RawfName in the WRITE CONTENT TO FILE Section.
## ----------- GET FILE ------------- ##
lines=open(file).readlines()
# etc ....
If you run the snippet, type a directory's name in the input box, and click on the button, nothing seems to happen, but it does. If you
close the interface, you'll see the user input needed to run the for loop appear on Python's shell, but the loop didn't run.
Any ideas on how I can get this two separate scripts working together?
I basically want to keep the interface open, run the application which starts by looping through files according to the user's input, have it do what it needs to, and then prestent a report to the user on a new window. The user can close this pop-up, and may do another operation without having to restart the application.
Thanks in advance.

Answer 1

I had to reread your question and your comments but I think I understand now what you are trying to do.
If you want to have a pop-up then Toplevel() is what you need. It will open a new window over the main window.
Here we can apply the for loop to add labels to the top level window.
You can do whatever you want here but as long as you do not close the mainloop() then you can have as many pop-ups as you need using Toplevel() without losing any data in the dict.
Let me know if the below helps or if it is something else you actual are trying to do:
from tkinter import *
w = Tk()
request={}
def init():
top = Toplevel(w)
request['dir'] = text1.get()
for key, value in request.items():
Label(top, text=value).pack()
text1 = StringVar()
Label(text=' Folder ').grid(row=0,column=0)
Entry(textvariable = text1).grid(row=0,column=1)
Button(text='Organize', command=init).grid(row=4,column=0)
w.mainloop()