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What are all the uses of an underscore in Scala?
...s taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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PDOException “could not find driver”
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Note that, for those using Apache or other web server, one needs to restart Apache for the changes to take effect: sudo systemctl restart httpd.service
– Mugoma J. Okomba
Aug 31 '16 at 5:31
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Django: Get list of model fields?
...s which (ultimately) inherits from models.Model . I want to get a list of all the fields defined for this model. For example, phone_number = CharField(max_length=20) . Basically, I want to retrieve anything that inherits from the Field class.
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Why aren't superclass __init__ methods automatically invoked?
...thon designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following?
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How to compare two NSDates: Which is more recent?
...for sorting algorithms to put elements in order. You could also redefine those constants yourself with a more readable name. My answer is doing the job but is not the award winner of readable code. Scroll down, there are other good ones.
– Nick Weaver
Jul 4 '14...
Is there any WinSCP equivalent for linux? [closed]
...ng Gnome, you can go to: Places -> Connect to Server in nautilus
and choose SSH. If you have a SSH agent running and configured, no password will be asked!
(This is the same as sftp://root@servername/directory in Nautilus)
In Konqueror, you can simply type: fish://servername.
per Mike R: In Ubu...
Open files in 'rt' and 'wt' modes
... Gotcha, it's documented in python3 docs. So, there is basically no difference between wt vs w and rt vs r - just explicit is better than implicit?
– alecxe
Apr 14 '14 at 2:38
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How are 3D games so efficient? [closed]
...dware.
For instance, one easy optimization you can make involves not actually trying to draw things that can't be seen. Consider a complex scene like a cityscape from Grand Theft Auto IV. The renderer isn't actually rendering all of the buildings and structures. Instead, it's rendering only what t...
How to use android emulator for testing bluetooth application?
... the emulator include:
No support for placing or receiving actual phone calls. However, You
can simulate phone calls (placed and received) through the emulator
console
No support for USB
No support for device-attached headphones
No support for determining SD card insert/eject
No support for WiFi,...
What are the differences between NP, NP-Complete and NP-Hard?
... the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions.
Decision problem: A problem with a yes or no answer.
Now, let us define those complexity classes.
P
P is a complexity class that repres...