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psycopg2: insert multiple rows with one query
...an @ant32 's implementation (called "folded") as explained in this thread: https://www.postgresql.org/message-id/20170130215151.GA7081%40deb76.aryehleib.com
This implementation was added to psycopg2 in version 2.7 and is called execute_values():
from psycopg2.extras import execute_values
execute_v...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 1
...
My +1 to mata's comment at https://stackoverflow.com/a/10561979/1346705 and to the Nick Craig-Wood's demonstration. You have decoded the string correctly. The problem is with the print command as it converts the Unicode string to the console encoding...
Is the C# static constructor thread safe?
...e any instances of a class are created or any static members are accessed. https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/static-constructors
The implementation shown is thread safe for the initial construction, that is, no locking or null testing is required f...
Use tab to indent in textarea
...a
{
width: 100%;
height: 100px;
tab-size: 4;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea class="tabSupport">if (something)
{
// This textarea has "tabSupport" CSS style
// Try using tab key
// Try selectin...
Best way to create an empty map in Java
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to dynamically create CSS class in JavaScript and apply?
...ement.className + " " + name;
}
}
Here's a little test page as well: https://gist.github.com/shadybones/9816763
The key little bit is the fact that style elements have a "styleSheet"/"sheet" property which you can use to to add/remove rules on.
...
How to download image using requests
...mport StringIO
# for python3.x,
from io import StringIO
r = requests.get('https://example.com/image.jpg')
i = Image.open(StringIO(r.content))
This much more reduced the number of function calls, thus speeded up my application.
Here is the code of my profiler and the result.
#!/usr/bin/python
imp...
Default parameter for CancellationToken
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Getting the name of a variable as a string
... python-varname package, you can easily retrieve the name of the variables
https://github.com/pwwang/python-varname
In your case, you can do:
from varname import Wrapper
foo = Wrapper(dict())
# foo.name == 'foo'
# foo.value == {}
foo.value['bar'] = 2
For list comprehension part, you can do:
n_job...
How to create a dialog with “yes” and “no” options?
...layed by the confirm function.
Jquery confirmBox
see this example: https://jsfiddle.net/kevalbhatt18/6uauqLn6/
<div id="confirmBox">
<div class="message"></div>
<span class="yes">Yes</span>
<span class="no">No</span>
</div>
...