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What is the global interpreter lock (GIL) in CPython?
...r weight" than creating multiple threads, but if you really need get work done in parallel, in python, it is an option.
– AJNeufeld
Jun 30 '16 at 19:25
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Convert String[] to comma separated string in java
i have one String[]
23 Answers
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Is there a NumPy function to return the first index of something in an array?
...in the first column, this works (although it will throw an index error if none exist) rows, columns = np.where(array==item); first_idx = sorted([r for r, c in zip(rows, columns) if c == 0])[0]
– BrT
Jan 15 '13 at 13:44
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How do I add a ToolTip to a control?
... this properly in code, but also in the designer (There is a ToolTip component in the toolbox, but I don't quite.. get it).
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Cache Invalidation — Is there a General Solution?
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What you are talking about is lifetime dependency chaining, that one thing is dependent on another which can be modified outside of it's control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost of checking b is high then you...
Two-way encryption: I need to store passwords that can be retrieved
...e. There are some encryption schemes that are impossible to crack such as OneTimePad).
Where do I store the private key?
What I would do is use 3 keys. One is user supplied, one is application specific and the other is user specific (like a salt). The application specific key can be stored anywh...
List comprehension: Returning two (or more) items for each item
... than O(N^2) performance). I'll still use sum(..., []) when I want a quick one-liner or I'm in a hurry, or when the number of terms being combined is bounded (e.g. <= 10).
– ninjagecko
Aug 8 '12 at 16:41
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Classes residing in App_Code is not accessible
...d to allow this? I have made it work in previous projects, but not in this one, somehow.
7 Answers
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...to something reasonably efficient for your current platform, whether it be one of those fancy bit-twiddling algorithms, or a single instruction.
A useful trick if your input can be zero is __builtin_clz(x | 1): unconditionally setting the low bit without modifying any others makes the output 31 f...
Different ways of adding to Dictionary
...f the top of my head, but i don't think there's much more to it, than mentioned in the other comments. If i remember correctly, Add simply uses the indexer, but checks first to see if the Key is already in use.
– hhravn
Dec 3 '09 at 10:33
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