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Is a Python dictionary an example of a hash table?

One of the basic data structures in Python is the dictionary, which allows one to record "keys" for looking up "values" of any type. Is this implemented internally as a hash table? If not, what is it? ...
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Regex exactly n OR m times

...character before) as you can see here: https://regex101.com/r/oC5oJ4/1 Finally, to match the one character distant match, you can add a positive look ahead (?=) on the "no 'x' after" or a positive look behind (?<=) on the "no 'x' before", like this: https://regex101.com/r/mC4uX3/1 (?<=[^x]|^...
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How to commit no change and new message?

... There's rarely a good reason to do this, but the parameter is --allow-empty for empty commits (no files changed), in contrast to --allow-empty-message for empty commit messages. You can also read more by typing git help commit or visiting the online documentation. While the tree object (w...
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C++ Exceptions questions on rethrow of original exception

...he catch cause the rethrown exception to see the effect of append() being called? 4 Answers ...
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Custom li list-style with font-awesome icon

...introduces the ::marker pseudo-element. From what I've understood it would allow such a thing. Unfortunately, no browser seems to support it. What you can do is add some padding to the parent ul and pull the icon into that padding: ul { list-style: none; padding: 0; } li { padding-l...
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Chrome Extension Message passing: response not sent

...will keep the message channel open to the other end until sendResponse is called). So you just need to add return true; after the call to getUrls to indicate that you'll call the response function asynchronously. share ...
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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]

...mport some of their own data and graft it on top of our model, it could usually be done on site by the sales rep. Flexibility also helped when we were designing a new feature, saving us from trying to squeeze new data into a rigid data model. Having a weird database let us build a lot of our other ...
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Should I use .done() and .fail() for new jQuery AJAX code instead of success and error

...recation Notice: The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead. If you are using the callback-manipulation function (using method-chaini...
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Increase number of axis ticks

I'm generating plots for some data, but the number of ticks is too small, I need more precision on the reading. 5 Answers...
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Push to GitHub without a password using ssh-key

... Here's a quick one-liner shell command that will automatically change your https url to the appropriate git one (Only works for github urls!): git remote set-url origin $(git remote show origin | grep "Fetch URL" | sed 's/ *Fetch URL: //' | sed 's/https:\/\/github.com\//git@github.c...