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Instance variables vs. class variables in Python

...else it's code created by an aberrant programmer wanting to show off they know some obscure corner of Python programming. Alex mentions in his reply that access will be (a little bit) faster due to one less level of lookup... let me further clarify for those who don't know about how this works yet....
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How to check a string for specific characters?

How can I check if a string has several specific characters in it using Python 2? 5 Answers ...
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What is RSS and VSZ in Linux memory management

...ory map, but there isn't necessarily any actual memory behind it all right now). Note that in these days of commonplace virtual machines, physical memory from the machine's view point may not really be actual physical memory. ...
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How to declare a global variable in JavaScript?

...ct to define internal stuff for the plugin: $.miniMenu.i = new Object(); Now I can just do $.miniMenu.i.globalVar = 3 or $.miniMenu.i.parseSomeStuff = function(...) {...} whenever I need to save something globally, and I still keep it out of the global namespace. ...
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What is the difference between map and flatMap and a good use case for each?

...ct res0: Array[String] = Array("Roses are red", "Violets are blue") Now, map transforms an RDD of length N into another RDD of length N. For example, it maps from two lines into two line-lengths: rdd.map(_.length).collect res1: Array[Int] = Array(13, 16) But flatMap (loosely speaking...
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Can I list-initialize a vector of move-only type?

... Now, I guess this should not be left without being mentioned in a comment :) move_only m[] = { move_only(), move_only(), move_only() }; std::vector<move_only> v(std::make_move_iterator(m), std::make_move_iterator(m + 3)...
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Best way to allow plugins for a PHP application

...eners; $num_args = func_num_args(); $args = func_get_args(); if($num_args < 2) trigger_error("Insufficient arguments", E_USER_ERROR); // Hook name should always be first argument $hook_name = array_shift($args); if(!isset($listeners[$hook_name])) return...
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“Unknown class in Interface Builder file” error at runtime

... Despite the "Unknown class MyClass in Interface Builder file." error printed at runtime, this issue has nothing to do with Interface Builder, but rather with the linker, which is not linking a class because no code uses it directly. When th...
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top -c command in linux to filter processes listed based on processname

...ilter the processes by username by using the option -u but I am wondering if there is any easy way to filter the processes based on processname listed under COMMAND column of the top output. ...
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Where is my Django installation?

...top answer doesn't work, at least on linux. From the Django tutorial: If you have difficulty finding where the Django source files are located on your system, run the following command: python -c " import sys sys.path = sys.path[1:] import django print(django.__path__)" ...