Python Sqlite search for string

search.py

import sqlite3
import os

filename = "simple.db"
search  = "search"
with sqlite3.connect(filename) as conn:  
    conn.row_factory = sqlite3.Row  
    cursor = conn.cursor()      
    cursor.execute("SELECT name FROM sqlite_master WHERE type='table'")  
    for tablerow in cursor.fetchall():  
        table = tablerow[0]
        if "sorl" in table:
          continue
        #print("SELECT * FROM {t}".format(t = table))
        cursor.execute("SELECT * FROM {t}".format(t = table))  
        for row in cursor:  
            for field in row.keys():
              if type(row[field]) is unicode:
                if search in row[field]:
                  print(row[field], field, table)