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How to import classes defined in __init__.py

... in sys.path. Your 'lib/__init__.py' might look like this: from . import settings # or just 'import settings' on old Python versions class Helper(object): pass Then the following example should work: from lib.settings import Values from lib import Helper Answer to the edited version of...
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Get the first N elements of an array?

... the array indices are meaningful to you, remember that array_slice will reset and reorder the numeric array indices. You need the preserve_keys flag set to trueto avoid this. (4th parameter, available since 5.0.2). Example: $output = array_slice($input, 2, 3, true); Output: array([3]=>'c', ...
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?

...l trick if your input can be zero is __builtin_clz(x | 1): unconditionally setting the low bit without modifying any others makes the output 31 for x=0, without changing the output for any other input. To avoid needing to do that, your other option is platform-specific intrinsics like ARM GCC's __c...
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In Scala how do I remove duplicates from a list?

...st[java.lang.String] = List(a, b, c) Update. Others have suggested using Set rather than List. That's fine, but be aware that by default, the Set interface doesn't preserve element order. You may want to use a Set implementation that explicitly does preserve order, such as collection.mutable.Linke...
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How to show popup message like in Stack Overflow

...w"); return false; }); }); And voila. Depending on your page setup you might also want to edit the body margin-top on display. Here is a demo of it in action. share | improve this ans...
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bat 写注册表详解 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

bat 写注册表详解实例:reg add "HKCU Software Microsoft Windows CurrentVersion Run" v "test" d "c: windows system32 regedit" f命令提示符...实例: reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "test" /d "c:\windows\system32\regedit" /f 命令提示符 r...
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How do I find where an exception was thrown in C++?

...ited (Linux). You can install your own terminate() function by using std::set_terminate(). You should be able to set a breakpoint on your terminate function in gdb. You may be able to generate a stack backtrace from your terminate() function and this backtrace may help in identifying the location...
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Remove duplicate lines without sorting [duplicate]

...ed and the line printed if the content of that node was not (!) previously set. share | improve this answer | follow | ...
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Bare asterisk in function arguments?

... editor after snippets, if snippets enabled if (StackExchange.settings.snippets.snippetsEnabled) { StackExchange.using("snippets", function() { createEditor(); }); } else { createEditor(); ...
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Calculate business days

...mend using $holidays = array_flip($holidays); before the foreach and if isset($holidays[$period->format('Y-m-d')]); to lower the amount of processing time needed per iteration. But recommend creating a custom function for holidays to be able to process relative holidays like thanksgiving last th...