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Is it pythonic to import inside functions?
...e things more permanent by moving the import line to the top of the file.
One other point, I prefer to get an ImportError exception before any code is run -- as a sanity check, so that's another reason to import at the top.
I use pyChecker to check for unused modules.
...
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
...and only work if you're on the same machine as the database. If the first one fails but the other two succeed, then JDBC connections will also fail. If so, connect to the database using either of the other two and run ALTER SYSTEM REGISTER. Then exit from SQL*Plus and try the first form again.
I...
Python string prints as [u'String']
This will surely be an easy one but it is really bugging me.
10 Answers
10
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Move assignment operator and `if (this != &rhs)`
..., other.mArray + mSize, mArray);
}
return *this;
}
Explanation:
One of the more expensive things you can do on modern hardware is make a trip to the heap. Anything you can do to avoid a trip to the heap is time & effort well spent. Clients of dumb_array may well want to often assign...
What is a StackOverflowError?
...nt message. Here you've not explicitly called yourself, but the OS/VM has done it for you.
To deal with them, you'll need to examine your code. If you've got functions that call themselves then check that you've got a terminating condition. If you have, then check that when calling the function you...
Differences between Emacs and Vim
Without getting into a religious argument about why one is better than the other, what are the practical differences between Emacs and Vim? I'm looking to learn one or the other, but I realize the learning curve for each is high and I can't decide. I have never used an editor of this type (I've al...
List of tuples to dictionary
...documentation:
For example, these all return a
dictionary equal to {"one": 1, "two":
2}:
dict(one=1, two=2)
dict({'one': 1, 'two': 2})
dict(zip(('one', 'two'), (1, 2)))
dict([['two', 2], ['one', 1]])
share
...
Default value to a parameter while passing by reference in C++
...
You can do it for a const reference, but not for a non-const one. This is because C++ does not allow a temporary (the default value in this case) to be bound to non-const reference.
One way round this would be to use an actual instance as the default:
static int AVAL = 1;
void f( in...
In PHP, can you instantiate an object and call a method on the same line?
...) {
return new Test($param);
}
And now, it becomes possible to use a one-liner, like you asked -- only thing is you are calling the function, thus not using new :
$a = Test(10)->myMethod();
var_dump($a);
And it works : here, I'm getting :
int 20
as output.
And, better, you can put s...
Best practice multi language website
...d project (horrible framework, IMHO). I encountered both of the above mentioned problems before scraping that solution. Also, I suspect that it might be an attack vector.
Available options ... as I see them.
Basically you have two choices, that could be abstracted as:
http://site.tld/[:query]: wher...