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How do I get Flask to run on port 80?
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So it's throwing up that error message because you have apache2 running on port 80.
If this is for development, I would just leave it as it is on port 5000.
If it's for production either:
Not Recommended
Stop apache2 first;
Not recommended as it states in the documentation:
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Java - get pixel array from image
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182
I was just playing around with this same subject, which is the fastest way to access the pixels....
efficient circular buffer?
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206
I would use collections.deque with a maxlen arg
>>> import collections
>>> ...
When to use static vs instantiated classes
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22
So in PHP static can be applied to functions or variables. Non-static variables are tied to a s...
Difference between declaring variables before or in loop?
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25 Answers
25
Active
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How to read a large file - line by line?
...r Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Nov 4 '11 at 13:46
KatrielKatriel
102k1717 gold b...
Selecting a row of pandas series/dataframe by integer index
I am curious as to why df[2] is not supported, while df.ix[2] and df[2:3] both work.
6 Answers
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Are +0 and -0 the same?
...ccount in our code and I, personally, don't want to do that ;)
Note:
ES2015 introduces a new comparison method, Object.is. Object.is explicitly distinguishes between -0 and +0:
Object.is(-0, +0); // false
share
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adding noise to a signal in python
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122
You can generate a noise array, and add it to your signal
import numpy as np
noise = np.rando...
HTML5 Pre-resize images before uploading
...e.target.result}
reader.readAsDataURL(file);
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var MAX_WIDTH = 800;
var MAX_HEIGHT = 600;
var width = img.width;
var height = img.height;
if (width > height) {
if (width > MAX_WIDTH) {
height *= MAX_WIDTH / width;
width = ...