python script with a GUI to search a keyword in files

file_searcher

from tkinter import *
import os
from tkinter.filedialog import askdirectory
from tkinter import messagebox
import subprocess
def content_analyser(pat):
    with open(pat,'r') as f:
        try:
            for line in f:
                if search in line:
                    d.update()
                    d.insert(END, pat)
                    break
        except:
            pass
def smali_finder(pat):
    
        
    try:
        for file in os.listdir(pat):
            spat=pat+'/'+file 
            if os.path.isdir(spat):
                smali_finder(spat)
            else:
                if file.endswith(".smali"):
                    content_analyser(spat)
    except Exception as e:    
        print ("Error:::",pat,e)
def fing(path):
    global search
    if search_word.get()=='':
        var=messagebox.showwarning(message="Please a search word")
        
    else:
        search=search_word.get()
        smali_finder(path)
def save_list():
    with open("saved_result","w") as sfile:
        sfile.write('\n'.join(d.get(0,END)))
    var=messagebox.showwarning(message="File names are saved as {}".format("saved_result.txt"))
    
def chose_folder():
    global path
    foldername = askdirectory() 
    path=foldername
    folder_name.delete(0,END)
    folder_name.update()
    folder_name.insert(END, path)    
    
if __name__=="__main__":
    parent=Tk()
    parent.title('File Finder')
    Label(parent,text="Folder name: ").grid(row=0,column=0,sticky='e')
    folder_name=Entry(parent,width=20)
    folder_name.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=9)
    Label(parent,text="Search word: ").grid(row=1,column=0,sticky='e')
    search_word=Entry(parent,width=20)
    search_word.grid(row=1,column=1,padx=2,pady=2,sticky='we',columnspan=9)
    Label(parent,text="Search Results: ").grid(row=3,column=0,sticky='e')
    d=Listbox(parent,width=125,height=20)
    d.grid(row=4,column=3,padx=2,pady=2,sticky='we',columnspan=9)
    Button(parent,text="Folder",command=lambda:chose_folder()).grid(row=0,column=10,sticky='e'+'w',padx=2,pady=2,)
    start=Button(parent,text="Start",command=lambda:fing(path)).grid(row=1,column=10,sticky='e'+'w',padx=2,pady=2,)
    save=Button(parent,text="Save",command=lambda:save_list())
    save.grid(row=2,column=10,sticky='e'+'w',padx=2,pady=2)
    Button(parent,text="Exit",command=parent.destroy).grid(row=3,column=10,sticky='e'+'w',padx=2,pady=2)
    parent.mainloop()