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What is the difference between “ is None ” and “ ==None ”
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If you use numpy,
if np.zeros(3)==None: pass
will give you error when numpy does elementwise comparison
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Nodejs - Redirect url
..." url is specific to your application. It could be a simple file not found error or something else if you are doing a RESTful app. Once you've figured that out, sending a redirect is as simple as:
response.writeHead(302, {
'Location': 'your/404/path.html'
//add other headers here...
});
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Rename multiple files in a directory in Python [duplicate]
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Im getting an error from windows saying it cant find the file, and it's not doing anything...any tips?
– Jeff
May 3 '10 at 15:49
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UIRefreshControl on UICollectionView only works if the collection fills the height of the container
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Const gives an error of undefined variable. if someone encounters the same situation just replace it with UIColor.whiteColor() or whatever color you like.
– Faisal
May 13 '16 at 5:04
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Store a closure as a variable in Swift
... can be declared as typealias as below
typealias Completion = (Bool, Any, Error) -> Void
If you want to use in your function anywhere in code; you can write like normal variable
func xyz(with param1: String, completion: Completion) {
}
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Convert decimal to binary in python [duplicate]
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I got the following error: TypeError: non-empty format string passed to object.__format__
– Right leg
Feb 7 '18 at 15:47
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Node.js version on the command line? (not the REPL)
...de version. The former reports an unrecognized flag / bad option (in 0.12) error and then enters the REPL, whereas the latter indeed tries to load a non-existent file, and aborts without entering the REPL. @JonathanLonowski has already stated it in a comment on the question, but let me repeat it he...
Unable to cast object of type 'System.DBNull' to type 'System.String`
I got the above error in my app. Here is the original code
11 Answers
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How to query SOLR for empty fields?
...le of Solr 4.5.1 and ?q=-id:* seems to work as expected. Maybe the parsing error is related to this issue.
– user2043553
Dec 8 '14 at 11:28
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Generating file to download with Django
... I opened my file in read mode then file.getvalue() is giving attribute error : TextIOWrapper has no attribute getValue .
– Shubham Srivastava
Apr 13 '18 at 20:41
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