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while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
... True has an internal integer value of 1. So, whether you're doing a while test (__bool__ in 3.x, __nonzero__ in 2.x), a comparison (__eq__), or arithmetic (__add__), you're calling the same method whether you use True or 1.
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Parsing boolean values with argparse
...ue"/"False" on the command line itself; however with this example, python3 test.py --do-something False fails with error: unrecognized arguments: False, so it does not really answer the question.
– sdbbs
Nov 26 '19 at 10:04
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Erlang's 99.9999999% (nine nines) reliability
... replacement module has a bug which crashes the system, but that's why you test before deploying to production.)
Supervisors. Erlang's OTP library has a supervisory framework built into it which lets you define how the system should react if a module crashes. The standard action here is to restart t...
Relational table naming convention [closed]
...ents, or is the implementation of, many Predicates, not one.
A query is a test of a Predicate (or a number of Predicates, chained together) that results in true (the Fact exists) or false (the Fact does not exist).
Thus tables should be named, as detailed in my Answer (naming conventions), for the ...
What is NSLayoutConstraint “UIView-Encapsulated-Layout-Height” and how should I go about forcing it
...t-Height is wrong if I don't lower the priority...
– testing
Nov 12 '14 at 8:48
38
I maintain tha...
application/x-www-form-urlencoded or multipart/form-data?
... cannot appear in base64 output. Many choices you see on the net fail this test - the MDN forms docs, for example, use "blob" as a boundary when sending binary data - not good. However, something like "!blob!" will never appear in base64 output.
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jQuery - Get Width of Element when Not Visible (Display: None)
... {w:width, h:height};
}
"realWidth" gets the width of an existing tag. I tested this with some image tags. The problem was, when the image has given CSS dimension per width (or max-width), you will never get the real dimension of that image. Perhaps, the img has "max-width: 100%", the "realWidth" ...
When to use Windows Workflow Foundation? [closed]
... and delegating all work to other classes, which can be organized and unit tested more gracefully than the workflow. Then you get the cool visual aspect of the designer without the cruft of spaghetti code behind.
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What are the differences between numpy arrays and matrices? Which one should I use?
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Actually, timeit tests show ndarray operations such as np.dot(array2, array2) are faster than matrix1*matrix2. This makes sense because matrix is a subclass of ndarray which overrides special methods like __mul__. matrix.__mul__ calls np.dot....
Combined area of overlapping circles
...o make little mistakes in the math. This solution provides a simple way to test correctness.
– Richard
Oct 28 '12 at 9:59
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