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Install tkinter for Python
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It is not very easy to install Tkinter locally to use with system-provided Python. You may build it from sources, but this is usually not the best idea with a binary package-based distro you're apparently running.
It's safer...
multiprocessing: sharing a large read-only object between processes?
...ependent memory space.
Solution 1
To make best use of a large structure with lots of workers, do this.
Write each worker as a "filter" – reads intermediate results from stdin, does work, writes intermediate results on stdout.
Connect all the workers as a pipeline:
process1 <source | proces...
How to mount a host directory in a Docker container
... possible you cannot map a host directory to a docker container directory within a dockerfile, because the host directory can change depending on which machine you are running on. To map a host directory to a docker container directory you need to use the -v flag when using docker run like so:
dock...
How to sort a list of objects based on an attribute of the objects?
...follow
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edited Sep 9 '19 at 12:57
Dorian Turba
72699 silver badges2020 bronze badges
ans...
Javascript: Setting location.href versus location
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You might set location directly because it's slightly shorter. If you're trying to be terse, you can usually omit the window. too.
URL assignments to both location.href and location are defined to work in JavaScript 1.0, back in Netscape 2, and have been implement...
MyISAM versus InnoDB [closed]
I'm working on a projects which involves a lot of database writes, I'd say ( 70% inserts and 30% reads ). This ratio would also include updates which I consider to be one read and one write. The reads can be dirty (e.g. I don't need 100% accurate information at the time of read).
The task in que...
Why should hash functions use a prime number modulus?
... ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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Java inner class and static nested class
...StaticNestedClass();
Objects that are instances of an inner class exist within an instance of the outer class. Consider the following classes:
class OuterClass {
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class InnerClass {
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}
}
An instance of InnerClass can exist only within an instance of OuterClass and has ...
std::function vs template
...wrappers. Unfortunately, I keep hearing only bad things about these new additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates.
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Creating Unicode character from its number
I want to display a Unicode character in Java. If I do this, it works just fine:
13 Answers
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