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How to fix “Attempted relative import in non-package” even with __init__.py
I'm trying to follow PEP 328 , with the following directory structure:
18 Answers
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What is android:weightSum in android, and how does it work?
...as the sum of the layout_weight of all the children if not specified explicitly.
Let's consider an example with a LinearLayout with horizontal orientation and 3 ImageViews inside it. Now we want these ImageViews always to take equal space. To acheive this, you can set the layout_weight of each Imag...
How to build & install GLFW 3 and use it in a Linux project
... a very long time, about 3 hours in total, partly because I am unfamiliar with CMake, and partly because I am was unfamiliar with GLFW.
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Open document with default OS application in Python, both in Windows and Mac OS
I need to be able to open a document using its default application in Windows and Mac OS. Basically, I want to do the same thing that happens when you double-click on the document icon in Explorer or Finder. What is the best way to do this in Python?
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How to test that no exception is thrown?
I know that one way to do it would be:
15 Answers
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JPA getSingleResult() or null
I have an insertOrUpdate method which inserts an Entity when it doesn't exist or update it if it does. To enable this, I have to findByIdAndForeignKey , if it returned null insert if not then update. The problem is how do I check if it exists? So I tried getSingleResult . But it throws an ex...
Running Python on Windows for Node.js dependencies
...;C:\My_python_lib
That's nice, but that doesn't set the PYTHON variable, it sets the PYTHONPATH variable.
Meanwhile, just using the set command only affects the current cmd session. If you reboot after that, as you say you did, you end up with a whole new cmd session that doesn't have that vari...
How do I correctly clone a JavaScript object?
I have an object x . I'd like to copy it as object y , such that changes to y do not modify x . I realized that copying objects derived from built-in JavaScript objects will result in extra, unwanted properties. This isn't a problem, since I'm copying one of my own literal-constructed objects.
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Semi-transparent color layer over background-image?
...ould like to put a pattern as background. This pattern is gray. So to make it a little more nice, I would like to put a light transparent color "layer" over. Below is what I tried but which did not work. Is there a way to put the colored layer over the background image?
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Check if image exists on server using JavaScript?
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Function is awesome. I put it in my collection :) I thought fileExists would be better name because this function does not check if image exists on server. It check if file is accessible from server. There is no check if that file actually is an image....