python - flask-mail 用环境变量提取账号密码发送邮件出错

硬编码到app.config（注释2行）就能成功发送邮件，用os.environ.get()就会出错 出错如上 环境变量设置： 我也在cmd set MAIL_USERNAME = xxxx 试过 也不行 求解释。。。。

From [Pythondiscussion group] 2017-04-17 15:47:28 0  0  895

python - Flask and wsgi, ImportError: cannot import name app

大家好，做了一个flask的小应用，配置在digital ocean上，按照digital ocean的配置说明配置后链接描述，访问站点时报500错误。看了下apache的日志，错误原因如下，还请帮忙看看。 日志报错： ...

From [Pythondiscussion group] 2017-04-17 13:59:49 0  3  895

python - A multi-threading novice would like to ask how to implement multi-threaded printing with such an IP?

{code...}

From [Pythondiscussion group] 2017-05-27 17:39:49 0  2  894

Problems encountered by Python crawlers (ask everyone on mobile Taobao)

When I got the source code of everyone's webpage from Taobao, there was no key content. I don't know where I w...

From [Pythondiscussion group] 2017-05-18 10:49:35 0  1  894

关于python的继承的一个疑问

如图所示，B 类继承了 A 类； 当实例化对象时，B 类中没有构造函数, 应该调用父类的构造函数 __init__ 但是里边的 self.__pirv() 为啥调用到父类 A 的 __priv, 而 self.pub()...

From [Pythondiscussion group] 2017-04-18 10:28:50 0  3  894

gcc - 用 python setup.py install 安装 matplotlib 报错

错误信息如下： {代码...} 系统信息： CentOS 6.3 64bit Python 2.6.x matplotlib 1.3.1

From [Pythondiscussion group] 2017-04-17 13:11:47 0  1  894

使用django-rest-framework的一些疑惑

我想将blog转为前后分离的模式，以前的页码使用Paginator分页后带的方法实现的<div class="ui secondary menu"> &nbs...

From [Pythondiscussion group] 2016-11-14 11:37:51 0  1  894

一个recursive的深度优先算法问题

我自己写了一些代码，想知道哪里出了问题，更改的代码已经写在里面了用recursion来计算两点之间最短距离例如有一个filea,b,5 a,c,8 b,d,6 c,d,2 d,e,12 d,f,2 e,g,3 f,g,7...

From [Pythondiscussion group] 2016-11-10 09:44:10 0  2  894

python - Django encountered problems operating the database and could not query the updated data

I changed the attribute of question_text and saved it, then added the __str__() method and then queried all Qu...

From [Pythondiscussion group] 2017-06-30 09:55:15 0  2  893

python3.x - About Python graph traversal operations

I just created a graph and wanted to perform depth traversal and breadth traversal, but only one data will app...

From [Pythondiscussion group] 2017-06-15 09:22:00 0  1  893

Python matches and deletes redis keys

redis-tools provides redis-cli which can match * and delete keys in batches. Can I support this matching if I ...

From [Pythondiscussion group] 2017-05-27 17:39:53 0  2  893

python 使用 xlwt 写入单元格时，如何合并单元格

我想展示成这样： {代码...} 用下列代码写入： {代码...} 但实际展示成了： {代码...} 求解

From [Pythondiscussion group] 2017-04-17 14:31:35 0  1  893

python如何有效的比较一个变化的列表?

比如一个QQ群列表以QQ号做唯一标识,现在有200个用户, 一会从新获取一下群列表变成了190个, 请问如何有效的判断是哪10个不在群里了?非要一个一个对比吗? 不是求交集哦,是要得出差异的,哪些是减少的.哪些是多出...

From [Pythondiscussion group] 2016-11-10 10:38:54 0  3  893

How to access the parent class in python class nesting

{code...}

From [Pythondiscussion group] 2017-05-18 10:52:40 0  1  892

win10 python3.5.1 安装Scrapy出错

64位 win10python3.5.1已安装Microsoft Visual C++ 2015 Redistributable(x64)、Microsoft Visual C++ 2012 Redistributabl...

From [Pythondiscussion group] 2017-04-18 10:12:57 0  2  892