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Why is it slower to iterate over a small string than a small list?
...thon3 -m timeit '[x for x in ["a", "b", "c"]]'
1000000 loops, best of 3: 0.436 usec per loop
This disagrees with what you've found...
You must be using Python 2, then.
>>> python2 -m timeit '[x for x in "abc"]'
1000000 loops, best of 3: 0.309 usec per loop
>>> python2 -m timei...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
...pack, followed by another ellipsis.
The comma is purely optional; §8.3.5/4 does say
Where syntactically correct and where “...” is not part of an abstract-declarator, “, ...” is synonymous with “...”.
This is within an abstract-declarator, [edit] but Johannes makes a good point t...
Removing duplicate objects with Underscore for Javascript
....unique accepts a callback
var list = [{a:1,b:5},{a:1,c:5},{a:2},{a:3},{a:4},{a:3},{a:2}];
var uniqueList = _.uniq(list, function(item, key, a) {
return item.a;
});
// uniqueList = [Object {a=1, b=5}, Object {a=2}, Object {a=3}, Object {a=4}]
Notes:
Callback return value used for compari...
Get event listeners attached to node using addEventListener
...
140
Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).
...
Python: access class property from string [duplicate]
...
4 Answers
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How do you properly determine the current script directory in Python?
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bobincebobince
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How to extract the decision rules from scikit-learn decision-tree?
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143
I believe that this answer is more correct than the other answers here:
from sklearn.tree impo...
Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...y considered as integers in Python 2.6 and 3.
So you're safe until Python 4 comes along. ;-)
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