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Listing all permutations of a string/integer
A common task in programming interviews (not from my experience of interviews though) is to take a string or an integer and list every possible permutation.
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In Python, how do I read the exif data for an image?
...he dictionary indexed by the actual EXIF tag name strings, try something like:
import PIL.ExifTags
exif = {
PIL.ExifTags.TAGS[k]: v
for k, v in img._getexif().items()
if k in PIL.ExifTags.TAGS
}
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Switch statement fall-through…should it be allowed? [closed]
...ign, which got me immediately wondering what everyone in the community thinks about switch statement fall-through.
12 Answe...
+ operator for array in PHP?
...operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand array will be ignored.
So if you do
$array1 = ['one', 'two', 'foo' => 'bar'];...
Python ValueError: too many values to unpack [duplicate]
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self.materials is a dict and by default you are iterating over just the keys (which are strings).
Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised.
In Python 2.x, to iterate over the keys and the values (the tup...
Why doesn't indexOf work on an array IE8?
The below function works fine on Opera, Firefox and Chrome. However, in IE8 it fails on the if ( allowed.indexOf(ext[1]) == -1) part.
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What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p
...p mode means patch, the help for which is hard-ish to find, but if you check git add --help you'll find the following
patch
This lets you choose one path out of a status like selection. After choosing the path, it presents the diff between the index and the working tree file and asks you ...
How do I activate a virtualenv inside PyCharm's terminal?
...yCharm) and activated that environment as my Interpreter. Everything is working just fine.
22 Answers
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How to convert a char array back to a string?
... So the need for splitting a String into individual chars and join them back is not required in normal code.
Compare this to C/C++ where "foo" you have a bundle of chars terminated by a zero byte on one side and string on the other side and many conversions between them due do legacy methods.
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Get string character by index - Java
I know how to work out the index of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f".
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