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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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How to select a single field for all documents in a MongoDB collection?
... MongoDB, I have a student collection with 10 records having fields name and roll . One record of this collection is:
1...
Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
...g delayed_jobs method of going into the console to see whats in the queue, and the ease of clearing the queue when needed. Are there similar commands in Sidekiq for this? Thanks!
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Deleting DataFrame row in Pandas based on column value
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If I'm understanding correctly, it should be as simple as:
df = df[df.line_race != 0]
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Stack smashing detected
...elated errors, but like a debugger, it may help you pin-point the location and reason for the crash.
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How to check if a String contains another String in a case insensitive manner in Java?
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@user01 correctness comes before performance, and using toLowerCase will give potentially incorrect results (for example, when comparing certain Greek text containing the letter Sigma, which has two lowercase forms for the same uppercase form).
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Get a pixel from HTML Canvas?
....getContext('2d');
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.getImageData(x, y, width, height);
var pix = imgd.data;
// Loop over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[i ] = 255 - pix[i ]; // r...
@Media min-width & max-width
...ult CSS for the older browsers, as older browsers including i.e. 5.5, 6, 7 and 8. Can't read @media. When I use @media I use it like this:
<style type="text/css">
/* default styles here for older browsers.
I tend to go for a 600px - 960px width max but using percentages
*/
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How to find the size of localStorage
...ript stores as UTF-16 (occupies 2 bytes)
P.P.S. Should work both in Chrome and Firefox.
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Installing specific package versions with pip
...re: http://pypi.python.org/pypi/MySQL-python/1.2.2
The download link 404s and the fallback URL links are re-directing infinitely due to sourceforge.net's recent upgrade and PyPI's stale URL.
So to properly install the driver, you can follow these steps:
pip uninstall MySQL_python
pip install -Iv ...