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blog-python-app's Issues

import utils 是什么包呀

import utils 我用pip安装了这个包但是依然有错误

File "/home/work/blog-python-app/www/transwarp/web.py", line 789, in set_header
self._headers[key] = utils.to_str(value)
AttributeError: 'module' object has no attribute 'to_str'

该框架如何加载静态资源文件?

文章上面写的加载静态文件如下:
templates或者static目录下的资源文件


<script src="/static/js/jquery.min.js"></script>
<script src="/static/js/md5.js"></script>
但是这样加载是不行的,我自己试过:
D:\python_wrokplace\app-python\app>python pymintor.py wsgiapp.py
[Monitor] Watching directory D:\python_wrokplace\app-python
.....
127.0.0.1 - - [12/Jun/2016 19:23:35] "GET /static/site.css HTTP/1.1" 404 48

html文件都在templates文件加下,后面我使用绝对目录:

这样加载也不行; flask框架中,有url_for()函数;这个框架中如何实现?

hello,i am a new pythoner,have a problem,please help...

cols, args = zip(*kw.iteritems())

  1. cols, args = zip(*kw.iteritems()) *kw是不是应该改成kw 以便使用iteritems()方法提取k w ?
  2. sql='insert into %s(%s) values(%s)'%(table,','.join(['%s'% col for col in cols]),','.join(['?' for i range(len(cols))]))中 第二个%s是要插入的列 第三个%s是要插入的值 ,所以 ','.join(['%s'% col for col in cols]),','.join(['?' for i range(len(cols))])是不是反了?

3.还有一个弱智的问题,第一个%s使用'``'符号是什么意思?

还请帮忙,小白看不懂

_update问题

@with_connection
def _update(sql, *args):
"""
执行update语句,返回行数
"""
global _db_ctx
cursor =None
sql = sql.replace('?','%s')
logging.info('SQL: %s, ARGS: %s' % (sql, args))
try:
cursor = _db_ctx.connection.cursor()
cursor.execute(sql, args)
r = cursor.rowcount
if _db_ctx.transactions == 0:
# no transaction enviroment:
logging.info('auto commit')
_db_ctx.connection.commit()
return r
finally:
if cursor:
cursor.close()

执行时cursor对象没有close方法?
结果图:
image

create_engine函数中的两点疑问

在这个函数中有两点疑问,希望得到雪峰老师的指导

``
for k, v in defaults.iteritems():
params[k] = kw.pop(k, v) # dict.pop(key, default_value) 如果用户未设定,则使用默认值。

params.update(kw)

#上面这段代码不是可以用下面这两句写吗。
params.update(defalults)
params.update(kw)

``

2、问题

``
engine = _Engine(lambda: mysql.connector.connect(**params))
这里为什么要用lambda ? 本来这句不就是调用一次mysql.connector.connect方法吗。

``

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