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Executing periodic actions in Python [duplicate]
...
At the end of foo(), create a Timer which calls foo() itself after 10 seconds.
Because, Timer create a new thread to call foo().
You can do other stuff without being blocked.
import time, threading
def foo():
print(time.ctime())
threading.Timer(10, foo).sta...
Argparse: Required arguments listed under “optional arguments”?
...lp are generated by two argument groups in which the arguments are automatically separated into. Now, you could “hack into it” and change the name of the optional ones, but a far more elegant solution would be to create another group for “required named arguments” (or whatever you want to ca...
difference between css height : 100% vs height : auto
...means the element height will depend upon the height of its children.
Consider these examples:
height: 100%
<div style="height: 50px">
<div id="innerDiv" style="height: 100%">
</div>
</div>
#innerDiv is going to have height: 50px
height: auto
<div style="hei...
Why are there two kinds of functions in Elixir?
... functions in this hello/1 syntax.
This is also why Elixir uses a dot for calling anonymous functions. Since you can't simply pass hello around as a function, instead you need to explicitly capture it, there is a natural distinction between named and anonymous functions and a distinct syntax for ca...
Why does calling a method in my derived class call the base class method?
...howInfo()
{
Console.WriteLine("I am a student!");
}
}
If called, the behavior of ShowInfo varies, based on the implementation:
Person person = new Teacher();
person.ShowInfo(); // Shows 'I am a teacher!'
person = new Student();
person.ShowInfo(); // Shows 'I am a student!'
...
How to force garbage collector to run?
...oing it more than necessary is inadvisable. The code for when it should be called is well written. You should normally only self collect in specialized edge cases. stackoverflow.com/a/21961777/2710988
– Brandon Barkley
Mar 7 '19 at 19:13
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Is recursion ever faster than looping?
...ich transforms certain types of recursion (actually, certain types of tail calls) into jumps instead of function calls.
In functional programming language implementations, sometimes, iteration can be very expensive and recursion can be very cheap. In many, recursion is transformed into a simple ju...
How to save MySQL query output to excel or .txt file? [duplicate]
...
From Save MySQL query results into a text or CSV file:
MySQL provides an easy mechanism for writing the results of a select
statement into a text file on the server. Using extended options of
the INTO OUTFILE nomenclature, it is possible to create a comma
separated value (CSV) which ...
What is the best way to call a script from another script?
...es, methods, etc. I have another script which runs as a service. I want to call test1.py from the script running as a service.
...