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Why can't non-default arguments follow default arguments?
...wed. A SyntaxError is raised if the arguments are not given in the correct order:
Let us take a look at keyword arguments, using your function.
def fun1(a="who is you", b="True", x, y):
... print a,b,x,y
Suppose its allowed to declare function as above,
Then with the above declarations, we c...
How to cast an Object to an int
...t;
Scenario 2: any numerical object
In Java Integer, Long, BigInteger etc. all implement the Number interface which has a method named intValue. Any other custom types with a numerical aspect should also implement Number (for example: Age implements Number). So you can:
int x = ((Number)yourOb...
C# using streams
....g. WriteByte(). There are no functions for dealing with integers, strings etc. This makes the stream very general-purpose, but less simple to work with if, say, you just want to transfer text.
However, .NET provides classes that convert between native types and the low-level stream interface, and ...
实战Nginx与PHP（FastCGI）的安装、配置与优化 - 更多技术 - 清泛网 - 专注...
...面指定的安装路径，PHP-FPM的默认配置文件为/usr/local/php/etc/php-fpm.conf。
php-fpm.conf是一个XML格式的纯文本文件，其内容很容易看明白。这里重点介绍几个重要的配置标签：
标签listen_address是配置fastcgi进程监听的IP地址以及端口...
Editing screenshots in iTunes Connect after iOS app was approved
...onable to not be allowed to change the images themselves, but changing the order could still be allowed, which is all that the OP (or myself) want. Still, I can understand that it's a more coherent policy to just not allow editing of metadata outside of an update.
– PeterT
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Python None comparison: should I use “is” or ==?
...hat == will do depends on the exact type of the operands and even on their ordering.
This recommendation is supported by PEP 8, which explicitly states that "comparisons to singletons like None should always be done with is or is not, never the equality operators."
...
Printing hexadecimal characters in C
...ect conversion specifications for the fixed-width character types (int8_t, etc) are defined in the header <cinttypes>(C++) or <inttypes.h> (C) (although PRIdMAX, PRIuMAX, etc is synonymous with %jd, %ju, etc).
As for his point about signed vs unsigned, in this case it does not matter si...
Is it faster to count down than it is to count up?
...o result in any measurable improvement on real programs on a modern out-of-order processor? Highly unlikely. In fact, I'd be impressed if you could show a measurable improvement even on a microbenchmark.
Summary: I smack your teacher upside the head! You shouldn't be learning obsolete pseudo-fac...
Python logging not outputting anything
...a handler with level=DEBUG, the actual logging level must also be DEBUG in order to get it to output anything.
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Shards and replicas in Elasticsearch
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An index is broken into shards in order to distribute them and scale.
Replicas are copies of the shards and provide reliability if a node is lost. There is often confusion in this number because replica count == 1 means the cluster must have the main and a ...