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Should __init__() call the parent class's __init__()?

... In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class: object.__init__(self) In case of object, calling th...
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How to find the size of localStorage

...ly developing a site that will make use of HTML5's localStorage. I've read all about the size limitations for different browsers. However, I haven't seen anything on how to find out the current size of a localStorage instance. This question seems to indicate that JavaScript doesn't have a built in...
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What's the best way to send a signal to all members of a process group?

... And if you modify the format slightly and sort, you get to see all processes nicely grouped and beginning with (potentially) the group parent in each group: ps x -o "%r %p %y %x %c" | sort -nk1,2 – haridsv Dec 3 '12 at 12:18 ...
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__FILE__ macro shows full path

....com/pipermail/cmake/2013-January/053117.html I'm copying the tip so it's all on this page: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'") If you're using GNU make, I see no reason you couldn't extend this to your own makefiles. ...
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Why use Abstract Base Classes in Python?

...emented classes. Long version There is a contract between a class and its callers. The class promises to do certain things and have certain properties. There are different levels to the contract. At a very low level, the contract might include the name of a method or its number of parameters. In a s...
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How to print a int64_t type in C

... hexadecimal. cppreference.com has a full listing of available macros for all types including intptr_t (PRIxPTR). There are separate macros for scanf, like SCNd64. A typical definition of PRIu16 would be "hu", so implicit string-constant concatenation happens at compile time. For your code to ...
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How to automatically generate a stacktrace when my program crashes

... the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace. 28 Answers ...
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How can I swap positions of two open files (in splits) in vim?

... 'hide buf' markedBuf endfunction nmap <silent> <leader>mw :call MarkWindowSwap()<CR> nmap <silent> <leader>pw :call DoWindowSwap()<CR> To use (assuming your mapleader is set to \) you would: Move to the window to mark for the swap via ctrl-w movement Type ...
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A python class that acts like dict

...er) instead of simply delegating to the instance's __dict__ - which essentially means you're creating two dicts for every instance. – Aaron Hall♦ Jan 8 '17 at 0:39 8 ...
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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4

... If during the evaluation of an expression, the result is not mathematically defined or not in the range of representable values for its type, the behavior is undefined. [ Note: most existing implementations of C++ ignore integer overflows. Treatment of division by zero, forming a remainde...