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How to run code when a class is subclassed? [duplicate]
.....),
an instance of type (i.e. a class) is created by myclass = type(name, bases, clsdict).
If you want something special to happen at the moment of class-creation, then you have to modify the thing creating the class -- i.e. type. The way to do that is to define a subclass of type -- i.e. a metacl...
Python error “ImportError: No module named”
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Based on your comments to orip's post, I guess this is what happened:
You edited __init__.py on windows.
The windows editor added something non-printing, perhaps a carriage-return (end-of-line in Windows is CR/LF; in unix i...
Animation CSS3: display + opacity
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Based on Michaels answer this is the actual CSS code to use
.parent:hover .child
{
display: block;
-webkit-animation: fadeInFromNone 0.5s ease-out;
-moz-animation: fadeInFromNone 0.5s ease-out;
-o-animation:...
Add params to given URL in Python
... page (come on, where is our favorite copy-paste thing?) so I wrote my own based on answers here. It tries to be complete and more Pythonic. I've added a handler for dict and bool values in arguments to be more consumer-side (JS) friendly, but they are yet optional, you can drop them.
How it works
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Swift equivalent for MIN and MAX macros
...upport macros and it seems that there are no equivalents in the language / base library. Should one go with a custom solution, maybe based on generics like this one ?
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How do I debug Node.js applications?
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"Since version 6.3, Node.js provides a buit-in DevTools-based debugger which mostly deprecates Node Inspector, see e.g. this blog post to get started. The built-in debugger is developed directly by the V8/Chromium team and provides certain advanced features (e.g. long/async stack ...
How to resume Fragment from BackStack if exists
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Reading the documentation, there is a way to pop the back stack based on either the transaction name or the id provided by commit. Using the name may be easier since it shouldn't require keeping track of a number that may change and reinforces the "unique back stack entry" logic.
Since y...
In Postgresql, force unique on combination of two columns
...dex for a and an index for c independently? Because I need to quickly find based on a sometimes, and quickly find based on c sometimes.
– CMCDragonkai
Sep 16 '19 at 13:08
add ...
Can I get CONST's defined on a PHP class?
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+1 for the token-based solution! Understanding token-based parsing is a pleasure considering the performance ... and as always there is one great person who shows off how to parse constants via token_get_all(). Thank you very much!
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Strip html from string Ruby on Rails
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If we want to use this in model
ActionView::Base.full_sanitizer.sanitize(html_string)
which is the code in "strip_tags" method
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