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How do you add a Dictionary of items into another Dictionary
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Dima
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answered Jun 5 '14 at 5:14
shucaoshucao
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The order of keys in dictionaries
...ct (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b', 2), ('c', 3)]).
As mentioned in the documentation, for vers...
Does python have an equivalent to Java Class.forName()?
I have the need to take a string argument and create an object of the class named in that string in Python. In Java, I would use Class.forName().newInstance() . Is there an equivalent in Python?
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Why is String immutable in Java?
I was asked in an interview why String is immutable
12 Answers
12
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Explaining Python's '__enter__' and '__exit__'
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Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement.
The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more explanation here.
A useful...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...状态机的实现)、实际数据的编码(图像如何被序列化，RGB？CMYK?)等等。
第3点表达了这样一个事实：即使存在两个非常相同的（例如两家公司里的）商务逻辑部署，它们仍然形成了两个拓扑，除非它们...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...状态机的实现)、实际数据的编码(图像如何被序列化，RGB？CMYK?)等等。
第3点表达了这样一个事实：即使存在两个非常相同的（例如两家公司里的）商务逻辑部署，它们仍然形成了两个拓扑，除非它们...
Function Pointers in Java
This may be something common and trivial, but I seem to be having trouble finding a concrete answer. In C# there is a concept of delegates, which relates strongly to the idea of function pointers from C++. Is there a similar functionality in Java? Given that pointers are somewhat absent, what is the...
How can I find out a file's MIME type (Content-Type)?
...d out the MIME type (or is it called "Content-Type"?) of a file in a Linux bash script?
5 Answers
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How to verify multiple method calls with different params
I have the following method that I wish to verify behaviour on.
7 Answers
7
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