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TypeError: module.__init__() takes at most 2 arguments (3 given)
... you try it and find out. Python's great cos it has the interpreter. Great for quick experimentation
– Sheena
Jan 27 '17 at 5:10
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Return positions of a regex match() in Javascript?
...(match) {
console.log("match found at " + match.index);
}
And for multiple matches:
var re = /bar/g,
str = "foobarfoobar";
while ((match = re.exec(str)) != null) {
console.log("match found at " + match.index);
}
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Rolling median algorithm in C
... ways to do it. The first is to sort the initial window of values, then perform a binary search to insert the new value and remove the existing one at each iteration.
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Get the client IP address using PHP [duplicate]
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$ipaddress = getenv('HTTP_CLIENT_IP');
else if(getenv('HTTP_X_FORWARDED_FOR'))
$ipaddress = getenv('HTTP_X_FORWARDED_FOR');
else if(getenv('HTTP_X_FORWARDED'))
$ipaddress = getenv('HTTP_X_FORWARDED');
else if(getenv('HTTP_FORWARDED_FOR'))
$ipaddress = get...
pythonic way to do something N times without an index variable?
... slightly faster approach than looping on xrange(N) is:
import itertools
for _ in itertools.repeat(None, N):
do_something()
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C Macro definition to determine big endian or little endian machine?
...;
#define O32_HOST_ORDER (o32_host_order.value)
#endif
You would check for little endian systems via
O32_HOST_ORDER == O32_LITTLE_ENDIAN
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f...
How to suppress “unused parameter” warnings in C?
For instance:
11 Answers
11
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Python != operation vs “is not”
...e done, objects can't influence the is operation.
You use is (and is not) for singletons, like None, where you don't care about objects that might want to pretend to be None or where you want to protect against objects breaking when being compared against None.
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Ignore python multiple return value
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One common convention is to use a "_" as a variable name for the elements of the tuple you wish to ignore. For instance:
def f():
return 1, 2, 3
_, _, x = f()
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Solving “Who owns the Zebra” programmatically?
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# They all drink different drinks.
# They all smoke different cigarettes.
for vars_ in (colors, nationalities, pets, drinks, cigarettes):
problem.addConstraint(AllDifferentConstraint(), vars_)
# In the middle house they drink milk.
#NOTE: interpret "middle" in a numerical sense (not geometrica...