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What are metaclasses in Python?
...lass
Example.unregister()
inst = Example(10)
# Will fail with an AttributeError
#inst.unregister()
print inst + inst
class Sibling(MyObject):
pass
ExampleSibling = Example + Sibling
# ExampleSibling is now a subclass of both Example and Sibling (with no
# content of its own) although it will ...
iOS 7: UITableView shows under status bar
... the top and select Top Space to Top Layout Guide
It will give you an error about ambiguous layout of TableView, just Add Missing Constraints and your done.
Now you can set up your table view like normal, and it won't clip the status bar!
...
Python locale error: unsupported locale setting
Why do I get the following error when doing this in python:
20 Answers
20
...
Why is the gets function so dangerous that it should not be used?
... head the trouble off sooner rather than later. I'd be prepared to add an error message:
fputs("obsolete and dangerous function gets() called\n", stderr);
Modern versions of the Linux compilation system generates warnings if you link gets() — and also for some other functions that also have s...
Finding a branch point with Git?
...o work... I either get something more recent, or just a silent failure (no error message, but exit status 1), trying arguments like git co master; git merge-base --fork-point topic, git co topic; git merge-base --fork-point master, git merge-base --fork-point topic master (for either checkout), etc....
How to properly import a selfsigned certificate into Java keystore that is available to all Java app
...eystore is located in ~/.keystore
if [ -z "$REMHOST" ]
then
echo "ERROR: Please specify the server name to import the certificatin from, eventually followed by the port number, if other than 443."
exit 1
fi
set -e
rm -f $REMHOST:$REMPORT.pem
if openssl s_client -connect $REMHOST:...
Listen for key press in .NET console app
...
Use Console.KeyAvailable so that you only call ReadKey when you know it won't block:
Console.WriteLine("Press ESC to stop");
do {
while (! Console.KeyAvailable) {
// Do something
}
} while (Console.ReadKey(true).Key != ConsoleKey.Escape);
...
Order a MySQL table by two columns
...d. When I have two columns, the name and total and want to order alphabetically by name and DESC by total, then I see only, that it was ordered by name, but not by total
– Eugene
May 3 '12 at 9:20
...
When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
...e Visual Studio would spot this problem and issue a warning):
...
bool error; // uninitialised value
if(something)
{
error = true;
}
return error;
If Visual Studio didn't preinitialise variables to a known value, then this bug could potentially be hard to find. With preinitia...
How do I get only directories using Get-ChildItem?
... The Attributes parameter doesn't seem to be in PS2, it gives an error "A parameter cannot be found that matches parameter name 'Attributes'". It works ok in PS3.
– WileCau
May 26 '14 at 7:02
...