小编mik*_*ail的帖子

我用sqlalchemy插入很多行:

connection = engine.connect()
topic_res = connection.execute(message_topics.insert(),[
        {
        'mt_date': time.time(),
        'mt_title': title,
        'mt_hasattach':u'0',
        'mt_starter_id':member.member_id,
        'mt_start_time': time.time(),
        'mt_last_post_time': time.time(),
        'mt_invited_members': u'a:0:{}',
        'mt_to_count': u'1',
        'mt_to_member_id':member.member_id,
        'mt_replies': u'1',
        } for member in members ])
topic_res.inserted_primary_key

当我尝试插入主键时,我得到:
AttributeError:'MySQLExecutionContext_mysqldb'对象没有属性'inserted_primary_key',但是由于调试,topic_res是'ResultProxy'对象.
因此,如果我只插入一行,我可以获得topic_res.inserted_primary_key.

我有许多字符串表示使用逗号或点来分隔数千并具有不同浮动分隔符的数字.例如:

"22 000,76","22.000,76","22,000.76","1022000,76"," - 1,022,000.76","1022000","22 000,76 $","$ 22 000,76"

如何在Python中将这些转换为浮点数？

在PHP中我使用这样的函数:http://docs.php.net/manual/sr/function.floatval.php#84793