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How do I pass extra arguments to a Python decorator?
... function.
Usually you want the decorator to change the function behavior by wrapping it in a wrapper function. Here's an example that optionally adds logging when the function is called:
def log_decorator(log_enabled):
def actual_decorator(func):
@functools.wraps(func)
def wra...
How to override trait function and call it from the overridden function?
...ence: If your trait function would be static you could access the function by calling A::calc(1)
– velop
Mar 24 '17 at 22:26
5
...
Best practice to run Linux service as a different user
...aemon --user=my_user my_cmd &>/dev/null &
This is implemented by wrapping the
process invocation with runuser -
more on this later.
Jonathan Leffler is right:
there is setuid in Python:
import os
os.setuid(501) # UID of my_user is 501
I still don't think you can setuid
from inside a ...
Dependency graph of Visual Studio projects
...ainst a 2010 project for C#, but you could probably tweak it really easily by looking at the XML inside a C++ project and adjusting the code :-)
– Danny Tuppeny
May 11 '13 at 10:24
...
Why does appending “” to a String save memory?
...maller) String object, and throws away the reference to the String created by substring(), thus enabling garbage collection of this.
The important thing to realise is that substring() gives a window onto an existing String - or rather, the character array underlying the original String. Hence it w...
Copy object values in Visual Studio debug mode
...
What exactly is meant by "the immediate window"?
– alex
Feb 12 '16 at 18:14
3
...
Good tutorial for using HTML5 History API (Pushstate?) [closed]
...
history.pushState() doesn't dispatch a popstate event or load a new page by itself. It was only meant to push state into history. This is an "undo" feature for single page applications. You have to manually dispatch a popstate event or use history.go() to navigate to the new state. The idea is tha...
How to only find files in a given directory, and ignore subdirectories using bash
...
You gain reputation by giving good answers. Please read this stackoverflow.com/conduct
– aifrim
May 21 at 23:10
...
Check if a class has a member function of a given signature
...ture
is inscribed in a parameter of a template type that must be satisfied by
&T::mf for the SFINAE probe to succeed. But this template instantiating
technique gives the wrong answer when T::mf is inherited.
A safe SFINAE technique for compiletime introspection of T::mf must avoid the
use of &a...
What does the ^ operator do in Java?
...sically read the digits left to right, and you multiply your result so far by 10 before adding the next digit.
In table form:
step result digit result*10+digit
1 init=0 8 8
2 8 6 86
3 86 7 867
4 867 5...