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Python argparse mutual exclusive group

..._mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options within the group mutually exclusive. What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have: prog command 1 -a: ... command 2 -b: ... -c: ... To...
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Render HTML to PDF in Django site

For my django powered site, I am looking for an easy solution to convert dynamic html pages to pdf. 8 Answers ...
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Determining Referer in PHP

What is the most reliable and secure way to determine what page either sent, or called (via AJAX), the current page. I don't want to use the $_SERVER['HTTP_REFERER'] , because of the (lack of) reliability, and I need the page being called to only come from requests originating on my site. Edit...
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Is bool a native C type?

...tdbool.h (which expectedly resolves to _Bool). Objects of type _Bool hold either 0 or 1, while true and false are also macros from stdbool.h. Note, BTW, that this implies that C preprocessor will interpret #if true as #if 0 unless stdbool.h is included. Meanwhile, C++ preprocessor is required to na...
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Installing Google Protocol Buffers on mac

...ocol Buffers (protobuf-2.4.1) on mac using Terminal command line. I tried with brew install protobuf , but the latest version 2.5.0 has been installed. Is it possible to install the older version from terminal. ...
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How to compare two dates in php

...follow | edited Nov 23 '16 at 5:44 SHAZ 2,41566 gold badges2020 silver badges2929 bronze badges ...
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Generic deep diff between two objects

... I wrote a little class that is doing what you want, you can test it here. Only thing that is different from your proposal is that I don't consider [1,[{c: 1},2,3],{a:'hey'}] and [{a:'hey'},1,[3,{c: 1},2]] to be same, because I think ...
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How can I save a screenshot directly to a file in Windows? [closed]

... public void Main(string[] args) { try { Bitmap capture = CaptureScreen.GetDesktopImage(); string file = Path.Combine(Environment.CurrentDirectory, "screen.gif"); ImageFormat format = ImageFormat.Gif; capture.Save(file, format); ...
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Creating JS object with Object.create(null)?

...uctor.prototype == Object.prototype while Object.create(null) doesn't inherit from anything and thus has no properties at all. In other words: A javascript object inherits from Object by default, unless you explicitly create it with null as its prototype, like: Object.create(null). {} would instea...
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How can I get the behavior of GNU's readlink -f on a Mac?

On Linux, the readlink utility accepts an option -f that follows additional links. This doesn't seem to work on Mac and possibly BSD based systems. What would the equivalent be? ...