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What does the slash mean in help() output?

...python functions. Also see the Argument Clinic documentation: To mark all parameters as positional-only in Argument Clinic, add a / on a line by itself after the last parameter, indented the same as the parameter lines. and the (very recent addition to) the Python FAQ: A slash in the argu...
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How to implement the factory method pattern in C++ correctly

... First of all, there are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. I...
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open read and close a file in 1 line of code

... You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons. So, what you can do to keep ...
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Callback functions in C++

In C++, when and how do you use a callback function? 10 Answers 10 ...
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How to backup a local Git repository?

I am using git on a relatively small project and I find that zipping the .git directory's contents might be a fine way to back up the project. But this is kind of weird because, when I restore, the first thing I need to do is git reset --hard . ...
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Installing python module within code

I need to install a package from PyPi straight within my script. Maybe there's some module or distutils ( distribute , pip etc.) feature which allows me to just execute something like pypi.install('requests') and requests will be installed into my virtualenv. ...
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What is the best way to give a C# auto-property an initial value?

...ty). Example of attributes that impact the IL are ThreadStaticAttribute, CallerMemberNameAttribute, ... share | improve this answer | follow | ...
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?

... First of all, never use a for in loop to enumerate over an array. Never. Use good old for(var i = 0; i<arr.length; i++). The reason behind this is the following: each object in JavaScript has a special field called prototype. Ever...
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How can I change the color of pagination dots of UIPageControl?

... f = CGRectMake(0, 0, 320, 20); PageControl *pageControl = [[[PageControl alloc] initWithFrame:f] autorelease]; pageControl.numberOfPages = 10; pageControl.currentPage = 5; pageControl.delegate = self; [self addSubview:pageControl]; Header file: // // PageControl.h // // Replacement for UIPage...
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Check if a folder exist in a directory and create them using C#

...er named MP_Upload , and if it does not exist, create the folder automatically? 7 Answers ...