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How do I detect whether a Python variable is a function?
I have a variable, x , and I want to know whether it is pointing to a function or not.
25 Answers
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What are the differences between numpy arrays and matrices? Which one should I use?
...the calls to the dot function. But this argument will disappear in future, now that the @-operator is accepted for use with matrix multiplication, see PEP 465. This will need Python 3.5 and the latest version of Numpy. The matrix class might be deprecated in the far future, so better to use ndarray ...
Checking if a double (or float) is NaN in C++
... it's commonly used to defend the design, in a circular argument (i don't know if you intended to associate to that, but worth knowing about -- it's flame war stuff). your conclusion that x != x is valid without that option does not follow logically. it might be true for a particular version of g++,...
Python string class like StringBuilder in C#?
...(str)
def __str__(self):
return self._file_str.getvalue()
now using it
sb = StringBuilder()
sb.Append("Hello\n")
sb.Append("World")
print sb
share
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improve this answer
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PHP function to build query string from array
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@ceejayoz Well you've known it for a long time now... Your wish has come true?
– Andrew
Nov 30 '16 at 19:56
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Decode Base64 data in Java
...Who knew this would be the most controversial answer I'd ever post? I do know that sun.* packages are not supported or guaranteed to continue existing, and I do know about Commons and use it all the time. However, the poster asked for a class that that was "included with Sun Java 6," and that's wh...
How to import load a .sql or .csv file into SQLite?
...nd documentation for importing/loading tables, not entire databases. Right now, when I type:
11 Answers
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C++ map access discards qualifiers (const)
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I would add that now in C11 you can use: std::map::at(key) and avoid the iterator.
– Juan Besa
Dec 19 '13 at 19:17
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What does $@ mean in a shell script?
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@Alfe I know;I just hat forgotten it. Think of it as for a in start_token "$@" end_token; do something_with "$a"; done :-)
– glglgl
Apr 3 '12 at 14:39
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Actual examples for HATEOAS (REST-architecture) [closed]
...principle because it doesn't use custom media types. How would the client know how to manipulate (e.g. deserialize, parse, display) each resource if everything is application/xml? It would depend on some non-standard ways of passing this information, like documentation meant to be read by humans.
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