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Openssl is not recognized as an internal or external command

... Well at the place of openssl ... you have to put actually the path to your openssl folder that you have downloaded. Your actual command should look like: keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | "C:\Users\abc\openssl\bin\openssl.exe" sha1...
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Can anyone explain python's relative imports?

... Thanks, but this honestly seems really silly. For such a beautiful language, I can't believe the designers would create such a restriction. Isn't there any other way? – carl Dec 16 '09 at 23:48 ...
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Why does += behave unexpectedly on lists?

... The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods. The __iadd__ special method is for an in-place addition, that i...
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Pick a random element from an array

... Int? Also, why doesn't Swift offer an Int alternative to this function or allow a user to specify what type of integer they would like returned? – Austin A Sep 27 '14 at 21:10 ...
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Is the LIKE operator case-sensitive with MSSQL Server?

...r that is case sensitive, it is the column itself. When a SQL Server installation is performed a default collation is chosen to the instance. Unless explicitly mentioned otherwise (check the collate clause bellow) when a new database is created it inherits the collation from the instance and when ...
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Where is a complete example of logging.config.dictConfig?

... All those concise, beautiful YAML snippets in the python logging.config docs just can't be read directly. Bummer. – JimB May 17 '18 at 18:19 ...
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What's the need of array with zero elements?

... This is a way to have variable sizes of data, without having to call malloc (kmalloc in this case) twice. You would use it like this: struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL); This used to be not standard and was considered a hack (as Aniket said), but it was s...
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Read-only and non-computed variable properties in Swift

...g in Objective-C. I have readonly properties, and they cannot be individually changed. However, using a specific method, the properties are changed in a logical way. ...
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How to do what head, tail, more, less, sed do in Powershell? [closed]

...an above option gc log.txt | more # or less if you have it installed gc log.txt | %{ $_ -replace '\d+', '($0)' } # sed This works well enough for small files, larger ones (more than a few MiB) are probably a bit slow. The PowerShell Community Extensions include some cmdlets fo...
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What is the volatile keyword useful for?

... volatile has semantics for memory visibility. Basically, the value of a volatile field becomes visible to all readers (other threads in particular) after a write operation completes on it. Without volatile, readers could see some non-updated value. To answer your question: Y...