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Display help message with python argparse when script is called without any arguments
...y add it as the default action:
parser = argparse.ArgumentParser()
parser.set_defaults(func=lambda x: parser.print_usage())
args = parser.parse_args()
args.func(args)
Add the try-except if you raise exceptions due to missing positional arguments.
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Convert a String In C++ To Upper Case
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This problem is vectorizable with SIMD for the ASCII character set.
Speedup comparisons:
Preliminary testing with x86-64 gcc 5.2 -O3 -march=native on a Core2Duo (Merom). The same string of 120 characters (mixed lowercase and non-lowercase ASCII), converted in a loop 40M times (wit...
Google Sheets API Setup · App Inventor 2 中文网
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Google Sheets API Setup
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Create a Service Account
1. Create a Google Developer Account
2. Create a Google Developer Project
3. Enable the Google Sheeets API
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How to check if two arrays are equal with JavaScript? [duplicate]
...ps as well (where the keys are also unique). (However if we extend this to Sets, we run into the tree isomorphism problem http://logic.pdmi.ras.ru/~smal/files/smal_jass08_slides.pdf - fortunately it's not as hard as general graph isomorphism; there is in fact an O(#vertices) algorithm to solve it, b...
How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
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Play audio with Python
How can I play audio (it would be like a 1 second sound) from a Python script?
22 Answers
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Do login forms need tokens against CSRF attacks?
...nd their login form was CSRF-vulnerable! So as a result, an attacker could set up an account with a password they knew, log the victim into YouTube using that account — stalking what videos the victim was watching.
There's some discussion in this comment thread that implies it could "only" be use...
Why .NET String is immutable? [duplicate]
As we all know, String is immutable. What are the reasons for String being immutable and the introduction of StringBuilder class as mutable?
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Bash script - variable content as a command to run
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Chrome/jQuery Uncaught RangeError: Maximum call stack size exceeded
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