Use Python for live search on MySQL db - mysql

Question

I'm new to Python and am working on a simple desktop application to read records from a MySQL db. I need to make live search using tkinter entry through mysql db. When user strikes a keyboard key, an auto suggestion list should be generated with auto -omplete options to choose from...
At the moment the code below doesn't work. What is wrong?
#-*- coding: utf-8 -*-
import Tkinter
from Tkinter import *
import MySQLdb
top = Tkinter.Tk()
top.minsize(300,300)
top.geometry("500x500")
# here we make text input field
E1 = Entry(top, bd =2)
E1.pack(side = RIGHT)
Lb1 = Listbox( E1) # here the list generated from entry but covering it completely is bad ??
def clickme(x):
txtt=E1.get()
txt=txtt+"%"
#connection
db = MySQLdb.connect("127.0.0.1","root","123456","test2",use_unicode=True, charset="utf8" )
if db:print"connected"
cursor=db.cursor()
cursor.execute("SELECT name FROM `table` WHERE name LIKE '%s' " % (txt))
#------------
res=cursor.fetchall()
i=0
for query in res:
i+=1
lngth=len(query[0])
u=query[0].encode('utf-8')
Lb1.delete (0,lngth)
if len(txtt)>0:
Lb1.insert(i, u)
Lb1.pack()
else:
Lb1.delete (0,lngth)
Lb1.pack_forget()
top.bind("<Key>", clickme)
top.mainloop()

Answer 1

I don't work with Tkinker so I don't know how to put Listbox near Entry but I made some modification.
If you write text in Entry then Listbox is showing with data from db.
If you remove text from Entry then Listbox is hidding.
#!/usr/bin/python
#-*- coding: utf-8 -*-
import Tkinter
from Tkinter import *
import MySQLdb
#----------------------------------------------------------------------
class MainWindow():
def __init__(self, root):
frame = Frame(root, width=500, height=500)
#root.minsize(300,300)
frame.pack()
# here we make text input field
self.E1 = Entry(frame, bd=2)
self.E1.pack(side=TOP)
# here the list generated from entry but covering it completely is bad ??
self.Lb1 = Listbox(frame, bd=2)
#Lb1.pack(side=BOTTOM)
root.bind("<Key>", self.clickme)
# open database (only once) at start program
self.db = MySQLdb.connect("127.0.0.1", "root", "password", "test", use_unicode=True, charset="utf8")
#-------------------
def __del__(self):
# close database on exit
self.db.close()
#-------------------
def clickme(self, x):
txt = self.E1.get()
self.Lb1.delete(0, END) # delete all on list
if txt == '':
self.Lb1.pack_forget() # hide list
else:
self.Lb1.pack(side=BOTTOM) # show list
txt_for_query = txt + "%"
cursor = self.db.cursor()
cursor.execute("SELECT name FROM `table` WHERE name LIKE '%s'" % (txt_for_query))
res = cursor.fetchall()
for line in res:
self.Lb1.insert(END, line[0].encode('utf-8')) # append list
cursor.close()
#----------------------------------------------------------------------
root = Tk()
MainWindow(root)
root.mainloop()