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What is the use of join() in Python threading?

...nstrate the mechanism: The join() is presumably called by the main-thread. It could also be called by another thread, but would needlessly complicate the diagram. join-calling should be placed in the track of the main-thread, but to express thread-relation and keep it as simple as possible, I choos...
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What is the python “with” statement designed for?

I came across the Python with statement for the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking: ...
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Is there a difference between “==” and “is”?

... True # Make a new copy of list `a` via the slice operator, # and assign it to variable `b` >>> b = a[:] >>> b is a False >>> b == a True In your case, the second test only works because Python caches small integer objects, which is an implementation detail. For large...
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Visual Studio C# statement collapsing

When editing really long code blocks (which should definitely be refactored anyway, but that's beyond the scope of this question), I often long for the ability to collapse statement blocks like one can collapse function blocks. That is to say, it would be great if the minus icon appeared on the cod...
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Installing in Homebrew errors

... top of the official docs to install Homebrew. Worked like a charm for me. It ought to be the only time you'll ever need to sudo with Homebrew. I'm not sure if the ruby one-liner does this. If it did, then something else on my system took control of /usr/local since. Edit: I completely missed this...
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Setting different color for each series in scatter plot on matplotlib

... plt.scatter(x, y, color=c) Or you can make your own colour cycler using itertools.cycle and specifying the colours you want to loop over, using next to get the one you want. For example, with 3 colours: import itertools colors = itertools.cycle(["r", "b", "g"]) for y in ys: plt.scatter(x, y...
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What does the Reflect object do in JavaScript?

...tp://people.mozilla.org/~jorendorff/es6-draft.html#sec-reflect-object and it sounds similar to the Proxy object apart from the realm and loader functionality. ...
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How to check whether an array is empty using PHP?

players will either be empty or a comma separated list (or a single value). What is the easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it...
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How to check if an option is selected?

...).is(':selected')) ... The non jQuery (arguably best practice) way to do it would be: $('#mySelectBox option').each(function() { if(this.selected) ... Although, if you are just looking for the selected value try: $('#mySelectBox').val() If you are looking for the selected value's text do...
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Is it possible to pass a flag to Gulp to have it run tasks in different ways?

...)) .pipe(gulp.dest(options.SCSS_DEST)); }); You can also combine it with gulp-if to conditionally pipe the stream, very useful for dev vs. prod building: var argv = require('yargs').argv, gulpif = require('gulp-if'), rename = require('gulp-rename'), uglify = require('gulp-ugli...