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How to install python3 version of package via pip on Ubuntu?
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pip-3.3, pip-3.4 etc no longer work. It is now just: pip, pip2, pip3. (At least on Ubuntu 14.04)
– 6005
Feb 13 '15 at 13:19
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How to execute a Python script from the Django shell?
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I ended up doing sys.path.append(os.getcwd()), it works when I am inside my project directory, my DJANGO_SETTINGS_MODULE is correct and I try to run a script that import models, views, etc.
– Danilo Cabello
Jul 11 '14 at 16...
Java Try Catch Finally blocks without Catch
...g();
try { useResource( r); }
finally { r.release(); } // close, destroy, etc
"Finally", one more tip: if you do bother to put in a catch, either catch specific (expected) throwable subclasses, or just catch "Throwable", not "Exception", for a general catch-all error trap. Too many problems, su...
Does delete on a pointer to a subclass call the base class destructor?
...e to be used) where I did not use it.
auto_ptr, unique_ptr and shared_ptr etc... are great for making this lifetime management much easier:
class A
{
shared_array<char> someHeapMemory;
public:
A() : someHeapMemory(new char[1000]) {}
~A() { } // someHeapMemory is delete[]d automat...
Meaning of = delete after function declaration
...den function to be visibly declared and considered for overload resolution etc., so that it can fail as early as possible and provide the clearest error to the user. Any solution which involves "hiding" the declaration reduces this effect.
– Leushenko
Feb 26 '1...
How to become an OpenCart guru? [closed]
...s all products currently in the cart including options, discounted prices, etc.
$this->cart->add( $product_id, $qty = 1, $options = array()) - Allows you to add a product to the cart
$this->cart->remove( $key ) - Allows you to remove a product from the cart
$this->cart->clear() - A...
How can I round a number in JavaScript? .toFixed() returns a string?
... 1e2;
someNumber === 42.01;
// if you need 3 digits, replace 1e2 with 1e3 etc.
// or just copypaste this function to your code:
function toFixedNumber(num, digits, base){
var pow = Math.pow(base||10, digits);
return Math.round(num*pow) / pow;
}
.
Or if you want a “native-like” function,...
How do I copy a file in Python?
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Example:
import shutil
shutil.copy('/etc/hostname', '/var/tmp/testhostname')
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Have a reloadData for a UITableView animate when changing
...mationKey"];
Change the type to match your needs, like kCATransitionFade etc.
Implementation in Swift:
let transition = CATransition()
transition.type = kCATransitionPush
transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
transition.fillMode = kCAFillMod...
Sockets: Discover port availability using Java
... tests whether it is in LISTEN state, whether the IP address is reachable, etc.
– Marquis of Lorne
Jul 27 '15 at 22:55
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