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Convert bytes to a string
...n Codepage Layout - it is where Python chokes with infamous ordinal not in range.
UPDATE 20150604: There are rumors that Python 3 has the surrogateescape error strategy for encoding stuff into binary data without data loss and crashes, but it needs conversion tests, [binary] -> [str] -> [bina...
Display image as grayscale using matplotlib
...en images, this is fine, you won't see a different. But if you have narrow range of pixel value image, say the min pixel is 156 and the max pixel is 234. The gray image will looks totally wrong.
The right way to show an image in gray is
from matplotlib.colors import NoNorm
...
plt.imshow(img,cmap=...
How do you remove a specific revision in the git history?
...4---5 master
After:
1---2---4'---5' master
From git-rebase(1):
A range of commits could also be
removed with rebase. If we have the
following situation:
E---F---G---H---I---J topicA
then the command
git rebase --onto topicA~5 topicA~3 topicA
would result in the removal o...
UILabel text margin [duplicate]
... attributedString.addAttribute(.paragraphStyle, value: paragraphStyle, range: NSRange(location: 0, length: attributedString.length))
attributedText = attributedString
}
}
}
share
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...
Is it safe to check floating point values for equality to 0?
... "Because Epsilon defines the minimum expression of a positive value whose range is near zero, the margin of difference between two similar values must be greater than Epsilon. Typically, it is many times greater than Epsilon. Because of this, we recommend that you do not use Epsilon when comparing ...
Where is Java's Array indexOf?
...List(list).sublist(from,to).indexOf(o) to search for an element within the range [from, to).
– Mario Carneiro
Jan 14 '16 at 22:23
...
How to get current time and date in Android
...rrently takes place using 32-bit integers. This limits
the reliable time range representable from 1902 until 2037.See the
wikipedia article on the Year 2038 problem for details. Do not rely on
this behavior; it may change in the future. Calling
switchTimezone(String) on a date that cannot ex...
What is JavaScript's highest integer value that a number can go to without losing precision?
...ith an integer 1 or higher
//Get a number higher than the valid integer range
while (canAddSubtractOneFromNumber(highestNumber)) {
highestNumber *= 2;
}
//Find the lowest number you can't add/subtract 1 from
var numToSubtract = highestNumber / 4;
while (numToSubtract >= 1) {
w...
Recommendation for compressing JPG files with ImageMagick
...wing:
-sampling-factor 4:2:0
-strip
-quality 85 [it can vary, I use range 60-80, lower number here means smaller file]
-interlace
-colorspace RGB
Command in ImageMagick:
convert image.jpg -sampling-factor 4:2:0 -strip -quality 85 -interlace JPEG -colorspace RGB image_converted.jpg
W...
What's the point of malloc(0)?
...s page that begins "malloc(0) will return a valid memory address and whose range will depend on the type of pointer which is being allocated memory". This statement is incorrect (I don't have enough reputation to comment on that answer directly, so can't put this comment directly under there).
Doi...