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TypeError: 'dict_keys' object does not support indexing
..._keys object which behaves a lot more like a set than a list. As such, it can't be indexed.
The solution is to pass list(d.keys()) (or simply list(d)) to shuffle.
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How do I find out if first character of a string is a number?
...oblem.
To make the entire condition one line and avoid length checks, you can alter the regexes to the following:
s.matches("\\d.*")
// or the equivalent
s.matches("[0-9].*")
If the condition does not appear in a tight loop in your program, the small performance hit for using regular expressions...
Can an array be top-level JSON-text?
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This is from the ECMAScript specification.
JSONText :
JSONValue
JSONValue :
JSONNullLiteral
JSONBooleanLiteral
JSONObject
JSONArray
JSONString
JSONNumber
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fetch from origin with deleted remote branches?
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You need to do the following
git fetch -p
This will update the local database of remote branches.
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Cannot kill Python script with Ctrl-C
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Ctrl+C terminates the main thread, but because your threads aren't in daemon mode, they keep running, and that keeps the process alive. We can make them daemons:
f = FirstThread()
f.daemon = True
f.start()
s = SecondThread()
s.daemon = True
s.start()
But then the...
How can I convert a string to upper- or lower-case with XSLT?
How do you do case conversion in XSL?
6 Answers
6
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How does one output bold text in Bash?
...to send to the terminal:
bold=$(tput bold)
normal=$(tput sgr0)
then you can use the variables $bold and $normal to format things:
echo "this is ${bold}bold${normal} but this isn't"
gives
this is bold but this isn't
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Android layout replacing a view with another view on run time
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@broot I want to add Images daynamically to my linearlayout that i have done. later I remove some of images from layout. then I want to restore it at its own position from where I have removed. means I want to add images without removing child's parent can you...
++someVariable vs. someVariable++ in JavaScript
In JavaScript you can use ++ operator before ( pre-increment ) or after the variable name ( post-increment ). What, if any, are the differences between these ways of incrementing a variable?
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Please explain about insertable=false and updatable=false in reference to the JPA @Column annotation
...is annotated insertable=false, updatable=false , doesn't it mean that you cannot insert value nor change the existing value? Why would you want to do that?
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