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Explaining Python's '__enter__' and '__exit__'
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If you know what context managers are then you need nothing more to understand __enter__ and __exit__ magic methods. Lets see a very simple example.
In this example I am opening myfile.txt with help of open function. The try/finally...
ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
...sing the below command
set PATH=C:\Program Files\Java\jdk1.8.0_211\bin
now the path is set now you can use the keytool
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...as df.drop(df[df.score < 50].index, inplace=True). Nevertheless didn't know the "index" trick. Helped me a lot
– Quickbeam2k1
Jun 8 '16 at 10:59
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Why does one hot encoding improve machine learning performance?
... the constraint w×x + b > 0, or equivalently w×x < b.
The problem now is that the weight w cannot encode a three-way choice. The three possible values of w×x are 0, w and 2×w. Either these three all lead to the same decision (they're all < b or ≥b) or "UK" and "French" lead to the sa...
Flushing footer to bottom of the page, twitter bootstrap
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Hi, I've implement this method, it works great but now I've got some problems with displaying page on iphone (page is zoomed in). Any ideas what is the problem? Here is some details: stackoverflow.com/questions/18621090/…
– pupadupa
Se...
Iterate through object properties
... I feel that I should mention, however, that Object.keys(obj) is now a much better solution for getting the keys of the object itself. Link to the Mozilla documentation: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Kyle Richter
Apr ...
Explanation of [].slice.call in javascript?
...ray, then iterate through the object it's running on (originally an array, now a NodeList) and keep appending the elements of that object to the empty array it created, which is eventually returned. Here's an article on this.
EDIT:
So it starts with an empty array [], then slice is used to
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How do you stash an untracked file?
...include-untracked
More details:
Update 17 May 2018:
New versions of git now have git stash --all which stashes all files, including untracked and ignored files.
git stash --include-untracked no longer touches ignored files (tested on git 2.16.2).
Original answer below:
Warning, doing this will ...
What is the best AJAX library for Django? [closed]
...uld be the official client-side framework for ASP.NET MVC, so its good to know regardless of what server side framework you're using.
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What is the worst gotcha in C# or .NET? [closed]
...pect, that would probably have been a good idea, but I think it's too late now. It might also have looked like I was just trying to get more rep...
– Jon Skeet
Oct 28 '08 at 6:20
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