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Copy a table from one database to another in Postgres
...
Extract the table and pipe it directly to the target database:
pg_dump -t table_to_copy source_db | psql target_db
Note: If the other database already has the table set up, you should use the -a flag to import data only, else you may see weird errors like "Out of memory":
pg_dump -a -t ...
Replace console output in Python
...his is something I am using:
def startProgress(title):
global progress_x
sys.stdout.write(title + ": [" + "-"*40 + "]" + chr(8)*41)
sys.stdout.flush()
progress_x = 0
def progress(x):
global progress_x
x = int(x * 40 // 100)
sys.stdout.write("#" * (x - progress_x))
s...
How can we run a test method with multiple parameters in MSTest?
...s
.Cast<KeyValuePair<string, object>>()
.Where(_ => _.Key.StartsWith("par"))
.Select(_ => _.Value as string)
.ToList();
}
//usage
[TestMethod]
[TestProperty("par1", "http://getbootstrap.com/components/")]
[TestProperty("par2", "http://www.wsj.com/eu...
What are the differences between django-tastypie and djangorestframework? [closed]
... do Django-style inequality filters:
http://www.example.com/api/person?age__gt=30
or OR queries:
http://www.example.com/api/mymodel?language__in=en&language__in=fr
these are possible with djangorestframework, but you have to write custom filters for each model.
For tracebacks, I've been m...
How can I create an object and add attributes to it?
... set on it. (I wish it could, for this exact purpose.) It doesn't have a __dict__ to hold the attributes.
I generally just do this:
class Object(object):
pass
a = Object()
a.somefield = somevalue
When I can, I give the Object class a more meaningful name, depending on what kind of data I'...
Height equal to dynamic width (CSS fluid layout) [duplicate]
... percentage which will be calculated depending on the current width:
.some_element {
position: relative;
width: 20%;
height: 0;
padding-bottom: 20%;
}
This works well in all major browsers.
JSFiddle: https://jsfiddle.net/ayb9nzj3/
...
Do zombies exist … in .NET?
...g a thread can cause problems:
class Program
{
static readonly object _lock = new object();
static void Main(string[] args)
{
Thread thread = new Thread(new ThreadStart(Zombie));
thread.Start();
Thread.Sleep(500);
thread.Abort();
Monitor.Enter(_...
How do I check in JavaScript if a value exists at a certain array index?
...his answer: stackoverflow.com/a/39171620/3120446
– dx_over_dt
Jul 9 '19 at 20:19
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show 9 more comments
...
XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
...se with https://github.com/kripken/sql.js/)
I created a file called base64_data.js (and used btoa() to convert the data that I needed and insert it into a <div> so I could copy it).
var base64_data = "U1FMaXRlIGZvcm1hdCAzAAQA ...<snip lots of data> AhEHwA==";
and then included the da...
Reading binary file and looping over each byte
...ns of Python below 2.5. To use it in v 2.5 you'll need to import it:
from __future__ import with_statement
In 2.6 this is not needed.
Python 3
In Python 3, it's a bit different. We will no longer get raw characters from the stream in byte mode but byte objects, thus we need to alter the conditi...