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How to start a background process in Python?
... that the subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using these functions.)
If you want your process to start in the background you can either use system() and call it in the same way your shell...
Why declare unicode by string in python?
... know the encoding and complained about the non-ASCII character. Once it knew the encoding, the byte string got the bytes that were actually on disk. For the Unicode string, Python read \x81, knew that in cp437 that was a ü, and decoded it into the Unicode codepoint for ü which is U+00FC. When ...
Want to find records with no associated records in Rails
Consider a simple association...
8 Answers
8
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Check if a temporary table exists and delete if it exists before creating a temporary table
...e the columns. If I add a column later, it will give an error saying "invalid column". Please let me know what I am doing wrong.
...
Stop setInterval
...unction () {
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Why is there an unexplainable gap between these inline-block div elements? [duplicate]
...lements.
Just set font-size: 0 on the parent elements, and then declare a new font-size for the children elements. This works, as demonstrated here (example)
#parent {
font-size: 0;
}
#child {
font-size: 16px;
}
This method works pretty well, as it doesn't require a change in the markup...
Practical usage of setjmp and longjmp in C
...on of corroutines (as much as I see it doesn't base on any non-standard or new behaviour).
EDIT:
It could be that it actually is undefined behaviour to do a longjmp down the callstack (see comment of MikeMB; though I have not yet had opportunity to verify that).
#include <stdio.h>
#include &...
Add data annotations to a class generated by entity framework
...
/* Global.asax or similar */
TypeDescriptor.AddProviderTransparent(
new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Entity), typeof(IEntityMetadata)), typeof(Entity));
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impro...
Why not use exceptions as regular flow of control?
...orian hangups and live a little.
My favorite usage is a sequence of throw new Success() in a long fragment of code that tries one thing after the other until it finds what it is looking for. Each thing -- each piece of logic -- may have arbritrary nesting so break's are out as also any kind of cond...
Check if element exists in jQuery [duplicate]
...an element exists if the element is created by .append() method?
$('elemId').length doesn't work for me.
8 Answers
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