Tutorial by Examples: g

setuptools_scm is an officially-blessed package that can use Git or Mercurial metadata to determine the version number of your package, and find Python packages and package data to include in it. from setuptools import setup, find_packages setup( setup_requires=['setuptools_scm'], use_...

PostScript is a Turing-complete general programming language, designed and developed by Adobe Systems. Many of the ideas which blossomed in PostScript had been cultivated in projects for Xerox and Evans & Sutherland. Its main real-world application historically is as a page description language...

IProgress<T> can be used to report progress of some procedure to another procedure. This example shows how you can create a basic method that reports its progress. void Main() { IProgress<int> p = new Progress<int>(progress => { Console.WriteLine("Runni...

It's important to note that the System.Progress<T> class does not have the Report() method available on it. This method was implemented explicitly from the IProgress<T> interface, and therefore must be called on a Progress<T> when it's cast to an IProgress<T>. var p1 = new P...

def hello_world(greeting: str = 'Hello'): print(greeting + ' world!') Note the spaces around the equal sign as opposed to how keyword arguments are usually styled.

CREATE TABLE menagerie.bird ( bird_id INT NOT NULL AUTO_INCREMENT, species VARCHAR(300) DEFAULT NULL COMMENT 'You can include genus, but never subspecies.', INDEX idx_species (species) COMMENT 'We must search on species often.', PRIMARY KEY (bird_id) ) ENGINE=InnoDB COMMENT 'Thi...

Bit-fields give an ability to declare structure fields that are smaller than the character width. Bit-fields are implemented with byte-level or word-level mask. The following example results in a structure of 8 bytes. struct C { short s; /* 2 bytes */ char c; /* 1 ...

Emacs' documentation uses a consistent notation for all key bindings, which is explained here: Key chords A "key chord" is obtained by pressing two or more keys simultaneously. Key chords are denoted by separating all keys by dashes (-). They usually involve modifier keys, which are put ...

To run the unit tests for a package, use the Pkg.test function. For a package named MyPackage, the command would be julia> Pkg.test("MyPackage") An expected output would be similar to INFO: Computing test dependencies for MyPackage... INFO: Installing BaseTestNext v0.2.2 INFO: Te...

Unit tests are declared in the test/runtests.jl file in a package. Typically, this file begins using MyModule using Base.Test The basic unit of testing is the @test macro. This macro is like an assertion of sorts. Any boolean expression can be tested in the @test macro: @test 1 + 1 == 2 @test...

0.5.0 In version v0.5, test sets are built into the standard library Base.Test module, and you don't have to do anything special (besides using Base.Test) to use them. 0.4.0 Test sets are not part of Julia v0.4's Base.Test library. Instead, you have to REQUIRE the BaseTestNext module, and add u...

Exceptions encountered while running a test will fail the test, and if the test is not in a test set, terminate the test engine. Usually, this is a good thing, because in most situations exceptions are not the desired result. But sometimes, one wants to test specifically that a certain exception is ...

What's the deal with the following? julia> @test 0.1 + 0.2 == 0.3 Test Failed Expression: 0.1 + 0.2 == 0.3 Evaluated: 0.30000000000000004 == 0.3 ERROR: There was an error during testing in record(::Base.Test.FallbackTestSet, ::Base.Test.Fail) at ./test.jl:397 in do_test(::Base.Test....

Powershell allows multiple assignment of variables and treats almost everything like an array or list. This means that instead of doing something like this: $input = "foo.bar.baz" $parts = $input.Split(".") $foo = $parts[0] $bar = $parts[1] $baz = $parts[2] You can simply...

IIS / .NET version Requirements: See here SignalR 2+ Install the NuGet package Microsoft.AspNet.SignalR (this is the whole SignalR solution) and it will ask you to install any dependencies for other packages. Accept the terms and install them as well. Now that we've got the .dlls and clie...

4.0 #requires -RunAsAdministrator After trying to run this script without admin privileges, you will see this error message .\script.ps1 : The script 'script.ps1' cannot be run because it contains a "#requires" statement for running as Administrator. The current Windows PowerShell s...

An expression template is a compile-time optimization technique used mostly in scientific computing. It's main purpose is to avoid unnecessary temporaries and optimize loop calculations using a single pass (typically when performing operations on numerical aggregates). Expression templates were init...

The Java programming language (and its runtime) has undergone numerous changes since its release since its initial public release. These changes include: Changes in the Java programming language syntax and semantics Changes in the APIs provided by the Java standard class libraries. Changes in ...

Every Python statement in Vim should be prefixed with the :python command, to instruct Vim that the next command is not Vimscript but Python. To avoid typing this command on each line, when executing multi-line Python code, it is possible to instruct Vim to interpret the code between two marker exp...

In order to begin using WebRTC you need to get camera and microphone permission.For that you need following things: adapter.js, you can get it from here A html webpage with a video tag and little bit of js code The adapter.js is a JavaScript shim for WebRTC, maintained by Google with help fro...