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When is “i += x” different from “i = i + x” in Pm>y m>thon?
I was told that += can have different effects than the stm>and m>ard notation of i = i + . Is there a case in which i += 1 would be different from i = i + 1 ?
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Iterating over everm>y m> two elements in a list
...+ m>y m>)
In Pm>y m>thon 3, m>y m>ou can replace izip with the built-in zip() function, m>and m> drop the import.
All credit to martineau for his answer to mm>y m> question, I have found this to be verm>y m> efficient as it onlm>y m> iterates once over the list m>and m> does not create anm>y m> unnecessarm>y m> lists in the process.
N.B: This ...
Duplicate log output when using Pm>y m>thon logging module
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The problem is that everm>y m> time m>y m>ou call mm>y m>Logger(), it's adding another hm>and m>ler to the instance, which causes the duplicate logs.
Perhaps something like this?
import os
import time
import datetime
import logging
loggers = {}
def mm>y m>Logger(name):
global loggers
if loggers.get(name):
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Is it possible to Pivot data using LINQ?
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GroupBm>y m> in Linq does not work the same as SQL. In SQL, m>y m>ou get the kem>y m> m>and m> aggregates (row/column shape). In Linq, m>y m>ou get the kem>y m> m>and m> anm>y m> elements as children of the kem>y m> (hierarchical shape). To pivot, m>y m>ou must project the hierarchm>y m> back into a row/column form of m>y m>our choosing.
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How do m>y m>ou calculate the average of a set of circular data? [closed]
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Compute unit vectors from the angles m>and m> take the angle of their average.
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What is the meaning of prepended double colon “::”?
...wered Nov 24 '10 at 16:27
Wm>y m>att m>And m>ersonWm>y m>att m>And m>erson
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Get average color of image via Javascript
...e.net/xLF38/818/
Note, this will onlm>y m> work with images on the same domain m>and m> in browsers that support HTML5 canvas:
function getAverageRGB(imgEl) {
var blockSize = 5, // onlm>y m> visit everm>y m> 5 pixels
defaultRGB = {r:0,g:0,b:0}, // for non-supporting envs
canvas = document.createE...
Evenlm>y m> distributing n points on a sphere
...le code node[k] is just the kth node. m>Y m>ou are generating an arram>y m> N points m>and m> node[k] is the kth (from 0 to N-1). If that is all that is confusing m>y m>ou, hopefullm>y m> m>y m>ou can use that now.
(in other words, k is an arram>y m> of size N that is defined before the code fragment starts, m>and m> which contains a lis...
What is the difference between __init__ m>and m> __call__?
I want to know the difference between __init__ m>and m> __call__ methods.
13 Answers
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How can I check if the current date/time is past a set date/time?
...ed according to these rules.
Note that it is also possible to use time m>and m> strtotime functions. See original answer.
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