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ImportError: No module named MySQLdb
...tall pymysql and switch your SQLAlchemy URI to start like this:
SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://.....'
There are some other drivers you could also try.
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How can I create directories recursively? [duplicate]
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Specifically: os.makedirs(os.path.join("/home/dail", "first", "second", "third"))
– mseery
May 14 '11 at 22:41
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What is meant by Resource Acquisition is Initialization (RAII)?
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It's a really terrible name for an incredibly powerful concept, and perhaps one of the number 1 things that C++ developers miss when they switch to other languages. There has been a bit of a movement to try to rename this concept as ...
When exactly is it leak safe to use (anonymous) inner classes?
...y tough question. While you may think it is just one question, you are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what I may miss.
Nested Classes: Introduction
As I'm not sure how comfortab...
How to get a substring between two strings in PHP?
...ieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions.
Here's an example:
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Cannot overwrite model once compiled Mongoose
...y have a schema defined, and then you are defining the schema again. Generally what you should do is instantiate the schema once, and then have a global object call it when it needs it.
For example:
user_model.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema...
How to determine equality for two JavaScript objects?
...y = function() {
if (c === undefined) c = a * b // imagine * is really expensive
return c;
}
}
In this above case, c is not really important to determine whether any two instances of MyClass are equal, only a and b are important. In some cases c might vary between instance...
Basic HTTP authentication with Node and Express 4
...he bare minimum you need: (you don't even need to parse the credentials at all)
function (req, res) {
//btoa('yourlogin:yourpassword') -> "eW91cmxvZ2luOnlvdXJwYXNzd29yZA=="
//btoa('otherlogin:otherpassword') -> "b3RoZXJsb2dpbjpvdGhlcnBhc3N3b3Jk"
// Verify credentials
if ( req.headers.a...
How to pass an array within a query string?
...s[]" value="Mercedes">
NOTE: Using field[] for multiple values is really poorly documented. I don't see any mention of it in the section on multi-valued keys in Query string - Wikipedia, or in the W3C docs dealing with multi-select inputs.
UPDATE
As commenters have pointed out, this is ve...
TaifunWiFi 拓展：WiFi Manager WiFi管理器扩展 · App Inventor 2 中文网
...导配置辅助设备，该API从Android 10开始可用。此API需要WRITE_SETTINGS权限。
DisconnectSSID 断开连接()
断开当前WiFi连接。
HaveSystemWritePermission 拥有系统写入权限()
检查应用是否拥有系统写入权限。
IsGpsEnabled GPS是否启用()
检...