[windows] flask - sqlite3.OperationalError: unable to open database file

<span style="font-family: Arial, Helvetica, sans-serif;"># all the imports</span>

##from __future__ import with_statement
import sqlite3

from flask import Flask, request, session, g, redirect,url_for, \
abort, render_template, flash

from contextlib import closing

import os

# configuration
<span style="color:#ff0000;">DATABASE = 'flaskr.db'</span>
DEBUG = True
SECRET_KEY = 'development key'
USERNAME = 'admin'
PASSWORD = '123'

# create our little application
app = Flask(__name__)
app.config.from_object(__name__)

for k, v in app.config.items():
print 'config[%s] = %s' % (k, v)

def connect_db():
return sqlite3.connect(app.config.get('DATABASE'))

def init_db():
with closing(connect_db()) as db:
with app.open_resource('schema.sql') as f:
db.cursor().executescript(f.read())
db.commit()

if __name__ == '__main__':
app.run()

from flaskr import init_db
init_db()


出现错误：sqlite3.OperationalError: unable to open database file

解决：

我的项目路径在E:\_PythonCode\flaskr下

在Python shell 上查看当前路径：

import os
os.getcwd()》'E:\\_PythonCode'
切换路径到项目路径下：

os.chdir('./flaskr')

此时路径为E:\_PythonCode\flaskr

from flaskr import init_db
init_db()

此时E:\_PythonCode\flaskr下会自动创建 flaskr.db 文件