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A python class that acts like dict

I want to write a custom class that behaves like dict - so, I am inheriting from dict . 9 Answers ...
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Please explain the exec() function and its family

... Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes. The simple idea behind the UNIX "execution model" is that there are two operations you can do. The first is to ...
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Set custom HTML5 required field validation message

I have one form with many input fields. I have put html5 validations 11 Answers 11 ...
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Make div stay at bottom of page's content all the time even when there are scrollbars

... That solution is not good for 90% of cases. if you re-size your window, your footer will overlay other content and won't stop right at the end of your content – vsync Oct 28 '12 at 16:53 ...
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How to find elements with 'value=x'?

... value="123" . I know that all elements with different values are located into #attached_docs , but I don't know how to select element with value="123" . ...
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Is there a way to rollback my last push to Git? [duplicate]

... Since you are the only user: git reset --hard HEAD@{1} git push -f git reset --hard HEAD@{1} ( basically, go back one commit, force push to the repo, then go back again - remove the last step if you don't care about the com...
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How to send FormData objects with Ajax-requests in jQuery? [duplicate]

The XMLHttpRequest Level 2 standard (still a working draft) defines the FormData interface. This interface enables appending File objects to XHR-requests (Ajax-requests). ...
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PHP PDO returning single row

...fetch(); example (ty northkildonan): $dbh = new PDO(" --- connection string --- "); $stmt = $dbh->prepare("SELECT name FROM mytable WHERE id=4 LIMIT 1"); $stmt->execute(); $row = $stmt->fetch(); share ...
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“R cannot be resolved to a variable”? [duplicate]

In Eclipse, I've created a project from a source and now it shows errors - "R cannot be resolved to a variable". From what I found here, I had cleared and rebuilt the project, but still the R file doesn't appear in the /gen folder. ...
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Finding child element of parent pure javascript

What would the most efficient method be to find a child element of (with class or ID) of a particular parent element using pure javascript only. No jQuery or other frameworks. ...