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How do I debug an MPI program?
I have an MPI program which compiles and runs, but I would like to step through it to make sure nothing bizarre is happening. Ideally, I would like a simple way to attach GDB to any particular process, but I'm not really sure whether that's possible or how to do it. An alternative would be having ea...
Multiple levels of 'collection.defaultdict' in Python
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Add .gitignore to gitignore
...ose is to prevent everyone who collaborates on a project from accidentally commiting some common files in a project, such as generated cache files. Therefore you should not ignore .gitignore, since it's supposed to be included in the repository.
If you want to ignore files in just one repository bu...
How can I have Github on my own server?
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Cron and virtualenv
I am trying to run a Django management command from cron. I am using virtualenv to keep my project sandboxed.
9 Answers
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Converting JSONarray to ArrayList
...erts JSONObject/JSONArray to a standard Map/List on the github gist.github.com/codebutler/2339666
– inexcii
Aug 27 '14 at 1:54
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...luminosity, and only modifies the color of the image. For example:
becomes After doing some research, it appears that the ColorMatrixColorFilter class may do what I need, but I can't seem to find any resources pointing to how the matrix is used. It's a 4x5 matrix, but what I need to know i...
Using custom fonts using CSS?
...y: 'YourFontName'; /*a name to be used later*/
src: url('http://domain.com/fonts/font.ttf'); /*URL to font*/
}
Then, trivially, to use the font on a specific element:
.classname {
font-family: 'YourFontName';
}
(.classname is your selector).
Note that certain font-formats don't work on...
How to get the first column of a pandas DataFrame as a Series?
...deprecated in pandas 0.20.2, so don't use it. Use loc or iloc instead. See comments and other answers to this question.
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Regex replace uppercase with lowercase letters
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