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Dictionaries and default values
...collections import defaultdict
a = defaultdict(lambda: "default", key="some_value")
a["blabla"] => "default"
a["key"] => "some_value"
You can pass any ordinary function instead of lambda:
from collections import defaultdict
def a():
return 4
b = defaultdict(a, key="some_value")
b['absent...
How to access remote server with local phpMyAdmin client?
Assuming there is a remote server and I have phpMyAdmin client installed localy on my computer. How can I access this server and manage it via phpMyAdmin client? Is that possible?
...
Creating an empty Pandas DataFrame, then filling it?
...utocompletion), but that works with strings as date format, right? The overall approach works though (I changed index to something else).
– Matthias Kauer
Dec 15 '12 at 8:42
...
HTML5 Video Dimensions
...ideo of which I'm overlaying onto a page with JavaScript, however it is returning the dimensions of the poster image instead of the actual video as it seems it's being calculated before the video is loaded.
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Multiple returns from a function
...
Technically, you can't return more than one value. However, there are multiple ways to work around that limitation. The way that acts most like returning multiple values, is with the list keyword:
function getXYZ()
{
return arr...
Executing injected by innerHTML after AJAX call
There's a div called "Content":
11 Answers
11
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Storing SHA1 hash values in MySQL
...INARY(20) and CHAR(40).
CREATE TABLE `binary` (
`id` int unsigned auto_increment primary key,
`password` binary(20) not null
);
CREATE TABLE `char` (
`id` int unsigned auto_increment primary key,
`password` char(40) not null
);
With million of records binary(20) takes 44.56M, whil...
App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希...
...126或ANSIX923
模式：AES加密方式，也可以是ECB，CBC，CTR，OFB或CFB
IV：AES加密IV，它必须是字符串值，并且其长度必须是16个字符，如果选择ECB加密模式，则不需要此值，否则必须设置此属性。
AesDecrypt
AES解密后使用属性AesKey...
TabLayout 拓展：多模式 Tab 导航组件 · App Inventor 2 中文网
...器（最常见）
bottom：底部导航栏（类似微信底部）
left：左侧垂直分类（左右分栏）
category：电商风格分类（左侧分类列表 + 右侧内容区 + 分割线）
支持外部布局引用和内置容器两种内容管理方式，颜色、字号、指示器等...
curl: (60) SSL certificate problem: unable to get local issuer certificate
...
Actually I struggled for an hour as I did not write path inside quotes. So please take a note here curl.cainfo="/path/to/downloaded/cacert.pem" // Do not forget to write between quotes
– Himanshu Upadhyay
...