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How to unpack and pack pkg file?

I have a pkg file created by Install Maker for Mac. I want to replace one file in pkg. But I must do this under Linux system, because this is a part of download process. When user starts to download file server must replace one file in pkg. I have a solution how unpack pkg and replace a file but I d...
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How to implement common bash idioms in Python? [closed]

...y shell has several sets of features. The Essential Linux/Unix commands. All of these are available through the subprocess library. This isn't always the best first choice for doing all external commands. Look also at shutil for some commands that are separate Linux commands, but you could proba...
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How do I use vim registers?

...on Windows (or from "mouse highlight" clipboard on Linux) "*p To access all currently defined registers type :reg share | improve this answer | follow | ...
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How to repeat a string a variable number of times in C++?

... std::string(5, '.') This is a contrived example of how you might use an ostringstream to repeat a string n times: #include <sstream> std::string repeat(int n) { std::ostringstream os; for(int i = 0; i < n; i++) os << "repeat"; return os.str(); } Depending on...
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What is the best way to solve an Objective-C namespace collision?

...ndle unloading (OS X 10.4 or later, no GNUStep support), and performance really isn't an issue for you, I believe that you could load one framework every time you need to use a class from it, and then unload it and load the other one when you need to use the other framework. My initial idea was to ...
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Multiprocessing - Pipe vs Queue

... as a bonus; JoinableQueue() accounts for tasks when queue.task_done() is called (it doesn't even know about the specific task, it just counts unfinished tasks in the queue), so that queue.join() knows the work is finished. The code for each at bottom of this answer... mpenning@mpenning-T61:~$ pyt...
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Check if string ends with one of the strings from a list

...m the file and see if it is in the set of extensions: >>> import os >>> extensions = set(['.mp3','.avi']) >>> file_name = 'test.mp3' >>> extension = os.path.splitext(file_name)[1] >>> extension in extensions True Using a set because time complexity for...
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Showing the stack trace from a running Python application

... prompt for interactive debugging.""" d={'_frame':frame} # Allow access to frame object. d.update(frame.f_globals) # Unless shadowed by global d.update(frame.f_locals) i = code.InteractiveConsole(d) message = "Signal received : entering python shell.\nTraceback:\n"...
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What is the easiest way to get current GMT time in Unix timestamp format?

...hon on modern platforms, including Linux, BSD, Mac OS X, and Windows, will all return UTC for time.time(). This mirrors the behavior of the C standard library's time function on these OS's. – Edmond Burnett May 26 '13 at 7:21 ...
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Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink

... One thing to mention is that, in my testing and a really old comment by someone else it seems you can't have an always-on scrollbar AND the momentum-like scrolling that people are used to with iOS. Doing the momentum-scrolling CSS caused my custom scrollbars to disappear. ...