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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...n Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y # NOTE: 3.9+ ONLY
Explanation
Say you have two dictionaries and you want to merge them into a new dict without altering the original dictiona...
What's the difference between UTF-8 and UTF-8 without BOM?
...4
rsprsp
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Can a local variable's memory be accessed outside its scope?
...
84
A little addition to all the answers:
if you do something like that:
#include<stdio.h>
...
Why would you use an ivar?
...
DarkDustDarkDust
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Can unit testing be successfully added into an existing production project? If so, how and is it wor
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Joe WhiteJoe White
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Proper use of the IDisposable interface
...ential COM:
Direct link: Chapter 1 sample by Pearson Publishing
magnet: 84bf0b960936d677190a2be355858e80ef7542c0
In 35 pages he explains the problems of using binary objects, and invents COM before your eyes. Once you realize the why of COM, the remaining 300 pages are obvious, and just detail ...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...中默认使用的是8086指令集，那时候如果在源程序中写入80386所特有的指令或使用32位的寄存器就会报错，为了在DOS环境下进行保护模式编程或仅为了使用32位寄存器，常在DOS的汇编中使用.386来定义。Win32环境工作在80386及以上的处...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...8
rsprsp
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What are metaclasses in Python?
...;>> f = Foo()
>>> print(f)
<__main__.Foo object at 0x8a9b84c>
>>> print(f.bar)
True
And of course, you can inherit from it, so:
>>> class FooChild(Foo):
... pass
would be:
>>> FooChild = type('FooChild', (Foo,), {})
>>> print(FooCh...
How does Google Instant work?
...search, but it's pretty hard to simplify Google that much. Anybody have speculations?
5 Answers
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