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Does python have an equivalent to Java Class.forName()?
... 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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What's the best way to send a signal to all members of a process group?
...the best way to do this using any common scripting languages? I am looking for a simple solution.
33 Answers
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...it in order to avoid some security vulnerabilities or bugs where one would forget to give a value to a variable that will be used later in the script. What PHP does in the case of undeclared variables is issue a very low level error, E_NOTICE, one that is not even reported by default, but the Manual...
`staticmethod` and `abc.abstractmethod`: Will it blend?
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@iraklikhitarishvili Still, that doesn't enforce the subclass's method to be static! You have to duplicate the staticmethod decorator... Is there no way around that?
– étale-cohomology
Mar 11 '16 at 19:12
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How to read data From *.CSV file using javascript?
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NOTE: I concocted this solution before I was reminded about all the "special cases" that can occur in a valid CSV file, like escaped quotes. I'm leaving my answer for those who want something quick and dirty, but I recommend Evan's answer for accuracy.
Thi...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
What is the formal difference between passing arguments to functions in parentheses () and in braces {} ?
9 Answers
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...另外，条件表达式中的与或非为分是：and, or, not关键字。for 循环
sum = 0
for i = 1, 100 do
sum = sum + i
end复制代码
从1到100的奇数和
sum = 0
for i = 1, 100, 2 do
sum = sum + i
end复制代码
从100到1的偶数和
sum = 0
for i = 100, 1...
How do I check OS with a preprocessor directive?
...hings based on the operating system on which it gets compiled. I'm looking for something like this:
16 Answers
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How to make my custom type to work with “range-based for loops”?
...ferent features that C++11 brings. One of my favorites is the "range-based for loops".
8 Answers
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...好的方式。下面介绍几个常见的属性参数。
__attribute__ format
该__attribute__属性可以给被声明的函数加上类似printf或者scanf的特征，它可以使编译器检查函数声明和函数实际调用参数之间的格式化字符串是否匹配。该功能十分有...