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What is the use of “assert” in Python?
...ch evaluate to their contents. But with assert(False,) the parentheses are now a tuple, and a non-empty tuple evaluates to True in a boolean context.
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Using scanf() in C++ programs is faster than using cin?
I don't know if this is true, but when I was reading FAQ on one of the problem providing sites, I found something, that poke my attention:
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PDO closing connection
... objects during runtime. PHP is a request based language (as you probably know) so killing a potentially persistent connection to the dB will likely result in unexpected errors/issues for users. The use case you link to is likely the result in the driver keeping the persistent connection open to be ...
How do I start PowerShell from Windows Explorer?
...OT\Directory\Background\shell\powershell]
@="Open PowerShell window here"
"NoWorkingDirectory"=""
[HKEY_CLASSES_ROOT\Directory\Background\shell\powershell\command]
@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -NoExit -Command Set-Location -LiteralPath '%V'"
;
; Add context men...
Python and pip, list all versions of a package that's available?
...ut a list of all the possible versions of it that pip could install? Right now it's trial and error.
16 Answers
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
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Not downvoting because it's a workaround for when you know what you are doing. However, strongly recommend against this in the general case.
– tripleee
Mar 27 '14 at 7:29
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How to get the system uptime in Windows? [closed]
I am using windows 7 and xp. I want to know the uptime of the system.
3 Answers
3
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How to set enum to null
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I don't know what the issue is then, but for my compiler it did give errors until I did the cast.
– StefanJanssen
Aug 7 '19 at 8:50
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MongoDB not equal to
...8b1a7768972d396fe2268"), "author" : "you", "post" : "how to query" }
And now $not, which takes in predicate ($ne) and negates it ($not):
db.test.find({'post': {$not: {$ne : ""}}})
{ "_id" : ObjectId("4f68b19c768972d396fe2267"), "author" : "me", "post" : "" }
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Fastest way(s) to move the cursor on a terminal command line?
... to implement command line input. And so to say, it is very convenient to know Readline bindings since it is used not only in bash. For example, gdb also uses Readline to process input.
In Readline documentation you can find all navigation related bindings (and more):
http://www.gnu.org/software/ba...