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Python super() raises TypeError
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132
The reason is that super() only operates on new-style classes, which in the 2.x series means ex...
How to include jar files with java file and compile in command prompt
I have 3 jar files and a .java file that depends on these jar files. How do I compile the .java file with these jar files using a command prompt?
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How to generate a random string in Ruby
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34 characters and blazing fast: ('a'..'z').to_a.shuffle[0,8].join. Note you'll need Ruby >=1.9 to shuffle.
– fny
Jun 14 '12 at 17:35
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promise already under evaluation: recursive default argument reference or earlier problems?
...instances where they occur we get:
f <- function(x, T) {
10 * sin(0.3 * x) * sin(1.3 * x^2) + 0.001 * x^3 + 0.2 * x + 80
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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How to construct a set out of list items in python?
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333
If you have a list of hashable objects (filenames would probably be strings, so they should co...
Clear text from textarea with selenium
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answered Oct 18 '11 at 15:38
IsaacIsaac
7,44044 gold badges2323 silver badges3030 bronze badges
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
... and boolean False are still properly returned for comparisons.
In Python 3.x True and False are keywords and will always be equal to 1 and 0.
Under normal circumstances in Python 2, and always in Python 3:
False object is of type bool which is a subclass of int:
object
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int
|
bool
It...
How to find out if a Python object is a string?
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305
Python 2
Use isinstance(obj, basestring) for an object-to-test obj.
Docs.
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