web.py todo list使用sqlite无效的文字用于int()

Question

我正在按照这里的教程http://webpy.org/docs/0.3/tutorial然后浏览网页,了解如何使用sqlite的待办事项列表部分,并找到了这个http://kzar.co.uk/blog /view/web.py-tutorial-sqlite

我无法通过此错误.我搜索过,没有一个我能找到的结果帮助我太多了.大多数人建议从括号中取出引号.

错误

<type 'exceptions.ValueError'> at /
invalid literal for int() with base 10: '19 02:39:09'

code.py

import web

render = web.template.render('templates/')

db = web.database(dbn='sqlite', db='testdb')

urls = (
    '/', 'index'
)

app = web.application(urls, globals())

class index:
    def GET(self):
        todos = db.select('todo')
        return render.index(todos)

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

模板/ index.html的

$def with (todos)
<ul>
$for todo in todos:
    <li id="t$todo.id">$todo.title</li>
</ul>

testbd

CREATE TABLE todo (id integer primary key, title text, created date, done boolean default 'f');
CREATE TRIGGER insert_todo_created after insert on todo
begin
update todo set created = datetime('now')
where rowid = new.rowid;
end;

对web.py sqlite来说很新

Answer 1

某处，int()正在用参数调用'19 02:39:09'。 int()无法处理冒号或空格。

>>> int('19 02:39:09')
Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    int('19 02:39:09')
ValueError: invalid literal for int() with base 10: '19 02:39:09'

>>> int(':')
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    int(':')
ValueError: invalid literal for int() with base 10: ':'

>>> int('19 02 39 09')
Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    int('19 02 39 09')
ValueError: invalid literal for int() with base 10: '19 02 39 09'

>>> int('19023909')
19023909
>>> 

我建议打电话replace()去掉空格和冒号，如下所示：

>>> date='19 02:39:09'
>>> date=date.replace(" ","")
>>> date
'1902:39:09'
>>> date=date.replace(":","")
>>> date
'19023909'
>>> int(date)  ## It works now!
19023909
>>> 

希望这可以帮助。