import sqlite3
import datetime
import pytz
from tzlocal import get_localzone

db = sqlite3.connect("tztestings.sqlite", detect_types=sqlite3.PARSE_DECLTYPES)
db.execute("CREATE TABLE IF NOT EXISTS accounts (name TEXT PRIMARY KEY NOT NULL, balance INTEGER NOT NULL)")
db.execute("CREATE TABLE IF NOT EXISTS history (time TIMESTAMP NOT NULL, timediff TZINFO,"
           " account TEXT NOT NULL, amount INTEGER NOT NULL, PRIMARY KEY (time, account))")