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Dynamically set local variable [duplicate]
How do you dynamically set local variable in Python (where the variable name is dynamic)?
7 Answers
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How to implement __iter__(self) for a container object (Python)
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I normally would use a generator function. Each time you use a yield statement, it will add an item to the sequence.
The following will create an iterator that yields five, and then every item in some_list.
def __iter__(self):
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Run java jar file on a server as background process
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You can try this:
#!/bin/sh
nohup java -jar /web/server.jar &
The & symbol, switches the program to run in the background.
The nohup utility makes the command passed as an argument run in the background even after you log out.
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Is it possible to include one CSS file in another?
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Yes:
@import url("base.css");
Note:
The @import rule must precede all other rules (except @charset).
Additional @import statements require additional server requests. As an alternative, concatenate all CSS into one file to avoid multiple HTTP requests. For example, copy the contents of base...
What is a clearfix?
... 1;
}
In SCSS, you could use the following technique :
%clearfix {
&:before, &:after {
content:" ";
display:table;
}
&:after {
clear:both;
}
& {
*zoom:1;
}
}
#clearfixedelement {
@extend %clearfix;
}
If you don't car...
Client-server synchronization pattern / algorithm?
...gt; Data Syncing in Core Data Based iOS apps (http://blog.denivip.ru/index.php/2014/04/data-syncing-in-core-data-based-ios-apps/?lang=en)
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Why can't variables be declared in a switch statement?
...ing. I found this question after reading §A9.3: Compound Statement from K&R C (second edition). The entry mentioned the technical definition of a compound-statement which is {declaration-list[opt] statement-list[opt]}. Confused, because I had thought a declaration WAS a statement, I looked it u...
How do you calculate log base 2 in Java for integers?
... for sure what will (int)(Math.log(65536)/Math.log(2)) evaluate to. For example, Math.ceil(Math.log(1<<29) / Math.log(2)) is 30 on my PC where mathematically it should be exactly 29. I didn't find a value for x where (int)(Math.log(x)/Math.log(2)) fails (just because there are only 32 "danger...
Why are Python's 'private' methods not actually private?
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The name scrambling is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's not designed to prevent deliberate access from outside.
For example:
>>> class Foo(object):
... def __init__(self):
... self....
What is getattr() exactly and how do I use it?
... understand about getattr() is that getattr(li, "pop") is the same as calling li.pop .
14 Answers
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