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Are nested try/except blocks in python a good programming practice?
I'm writing my own container, which needs to give access to a dictionary inside by attribute calls. The typical use of the container would be like this:
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How to initialise memory with new operator in C++?
I'm just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array of type int with the new operator, how can I initialise them all to 0 without looping through them all myself? Should I just use memset ? Is there a “C++” way to do it?
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Why should I learn Lisp? [closed]
...earn Lisp and there are plenty of good resources out there to help me do it.
29 Answers
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What is the dependency inversion principle and why is it important?
What is the dependency inversion principle and why is it important?
16 Answers
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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version ...
Default background color of SVG root element
...ugh as most browsers are targetting SVG 1.1 at this time. Opera implements it FWIW.
A more cross-browser solution currently would be to stick a <rect> element with width and height of 100% and fill="red" as the first child of the <svg> element, for example:
<rect width="100%" height...
is it possible to update UIButton title/text programmatically?
...change some settings. When the view is dismissed, I'd like to update the title/text of the UIButton to reflect the new state. I'm calling:
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How to track untracked content?
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You have added vendor/plugins/open_flash_chart_2 as “gitlink” entry, but never defined it as a submodule. Effectively you are using the internal feature that git submodule uses (gitlink entries) but you are not using the submodule feature itself.
You probably did something l...
What is an existential type?
... because of the existential operator (∃). I'm not sure what the point of it is, though. What's the difference between
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Is PHP compiled or interpreted?
...nguage. The binary that lets you interpret PHP is compiled, but what you write is interpreted.
You can see more on the Wikipedia page for Interpreted languages
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