预期的sha256_crypt哈希值，得到的是sha256_crypt配置字符串。

我得到了以下错误，预期的是sha256_crypt hash，得到的却是sha256_crypt config string。

预期的sha256_crypt哈希值，得到的是sha256_crypt配置字符串。

这是我的代码，我做错了什么？

code :

@app.route('/login' , methods=['GET' ,'POST'])
def login():
    if request.method == 'POST':
        #Get form fields
        username = request.form['username']
        password_candidate = request.form['password']
        #Create cursor
        cur = mysql.connection.cursor()
        #Get user by username
        result = cur.execute("SELECT * FROM users WHERE username = (%s)", [username])
        app.logger.info(result)
        if result > 0:
            #Get stored hash
            data = cur.fetchone()
            password = data['password']
            app.logger.info(password)
            #Comparing the passwords
            if sha256_crypt.verify(password_candidate, password):
                app.logger.info('PASSWORD MATCHED')
                app.logger.info(password_candidate)
                #Passed
                sesion['logged_in'] = True
                session['username'] = username
                flash('You are now logged in', 'succes')
                return redirect(url_for('about'))
            else:
                error = "Invalid login"
                return render_template('login.html', error=error)
            #Close connection
            cur.close()
        else:
            error = 'Username not found'