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How to read the RGB value of a given pixel in Python?
If I open an image with open("image.jpg") , how can I get the RGB values of a pixel assuming I have the coordinates of the pixel?
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'heroku' does not appear to be a git repository
...heroku:
heroku login
Enter your credentials.
It's common to get this error when using a cloned git repo onto a new machine. Even if your heroku credentials are already on the machine, there is no link between the cloned repo and heroku locally yet. To do this, cd into the root dir of the clone...
chrome undo the action of “prevent this page from creating additional dialogs”
I sometimes find that I need to re-enable alerting for debugging. Of course I can close the tab and reload it but Is there a better way?
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Rails 3: I want to list all paths defined in my rails application
...ing.html#listing-existing-routes
Though, it may be late, But I love the error page which displays all the routes. I usually try to go at /routes (or some bogus) path directly from the browser. Rails server automatically gives me a routing error page as well as all the routes and paths defined. Th...
How to print the full traceback without halting the program?
...ke data that can be readily used in the NumPy library. There are tons of errors this file encounters through bad links, poorly formed XML, missing entries, and other things I've yet to categorize. I initially made this program to handle errors like this:
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Short circuit Array.forEach like calling break
...ng the new forEach method in JavaScript? I've tried return; , return false; and break . break crashes and return does nothing but continue iteration.
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Disable sorting for a particular column in jQuery DataTables
I am using the jQuery DataTables plugin to sort the table fields. My question is: how do I disable sorting for a particular column? I have tried with the following code, but it did not work:
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Swift Bridging Header import issue
...ed a bridging header and added to my project. Unfortunately, the following error occurred:
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Rails 4: assets not loading in production
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How do I drop a foreign key constraint only if it exists in sql server?
I can drop a table if it exists using the following code but do not know how to do the same with a constraint:
10 Answers
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