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SQLAlchemy - Getting a list of tables
... the metadata yourself. Fortunately, the metadata is still present on the baseclass,
>>> Base = sqlalchemy.ext.declarative.declarative_base()
>>> Base.metadata
MetaData(None)
If you are trying to figure out what tables are present in your database, even among the ones you have...
Android JSONObject - How can I loop through a flat JSON object to get each key and value
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Find running median from a stream of integers
...ails of the a specific solution (max heap/min heap solution), and how heap based solution works is explained below:
For the first two elements add smaller one to the maxHeap on the left, and bigger one to the minHeap on the right. Then process stream data one by one,
Step 1: Add next item to one ...
Compare two Byte Arrays? (Java)
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Convert two lists into a dictionary
...or k, v in zip(keys, values)}
Choose this when you need to map or filter based on the keys or value.
In Python 2, zip returns a list, to avoid creating an unnecessary list, use izip instead (aliased to zip can reduce code changes when you move to Python 3).
from itertools import izip as zip
So...
Node.js - Find home directory in platform agnostic way
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Why should I prefer to use member initialization lists?
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Initialization of base class
One important reason for using constructor initializer list which is not mentioned in answers here is initialization of base class.
As per the order of construction, base class should be constructed before child...
How can I filter a date of a DateTimeField in Django?
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Such lookups are implemented in django.views.generic.date_based as follows:
{'date_time_field__range': (datetime.datetime.combine(date, datetime.time.min),
datetime.datetime.combine(date, datetime.time.max))}
Because it is quite verbose there are plan...
Access string.xml Resource File from Java Android Code
...anet);
for (int i = 0; i < arr.length; i++) {
Toast.makeText(getBaseContext(),arr[i], Toast.LENGTH_LONG).show();
}
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What is stdClass in PHP?
...ject in Java or object in Python (Edit: but not actually used as universal base class; thanks @Ciaran for pointing this out).
It is useful for anonymous objects, dynamic properties, etc.
An easy way to consider the StdClass is as an alternative to associative array. See this example below that sh...