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Proxies with Python 'Requests' module
...st.getproxies())
It works really well and urllib knows about getting Mac OS X and Windows settings as well.
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How to create full compressed tar file using Python?
... a .tar.gz (aka .tgz) for an entire directory tree:
import tarfile
import os.path
def make_tarfile(output_filename, source_dir):
with tarfile.open(output_filename, "w:gz") as tar:
tar.add(source_dir, arcname=os.path.basename(source_dir))
This will create a gzipped tar archive contain...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...，接下来，看另外两组异常模型机制，它们是Windows系列操作系统平台上提供的SEH模型，也就是说在C++中调用的时候，其实是调用Windows的API
SEH,又称结构化异常处理.是设计Windows操作系统时提出一个种处理异常的方法。
__try, __e...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...the bitness of this JVM with:
System.getProperty("sun.arch.data.model");
Possible results are:
"32" – 32-bit JVM
"64" – 64-bit JVM
"unknown" – Unknown JVM
As described in the HotSpot FAQ:
When writing Java code, how do I distinguish between 32 and 64-bit operation?
There's no public API th...
How to get current CPU and RAM usage in Python?
...e ps, top and Windows task manager.
It currently supports Linux, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures, with Python versions from 2.6 to 3.5 (users of Python 2.4 and 2.5 may use 2.1.3 version).
Some examples:
#!/usr/bin/env python
import psut...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...dkhome="`/usr/libexec/java_home -v '1.7*'`"
and this will force it to choose Java 7 instead of 8.
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error C2804:binary \'operator +\' has too many parameters - C/C++ - 清泛网 - 专注C/C++及内核技术
...return ret; // return ret by value ,not by reference
}
解决方法：+操作符包括两个操作数，应该重载为普通非成员函数。
注意重载操作符的形参数目（包括成员函数的隐式 this 指针）与操作符的操作数数目相同。对称的操作符，如算术...
灾难恢复RTO 与 RPO - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
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所谓 RTO，Recovery Time Objective，它是指灾难发生后，从 IT 系统当机导致业务停顿之时开始，到 IT 系统恢复至可以支持各部门运作、恢复运营之时，此两点之间的时间段称为 RTO。
所谓 RPO，Recovery Point Objective，是指从系统和应...
涨姿势：全套支付宝系统架构（内部架构图） - 更多技术 - 清泛网 - 专注C/C...
涨姿势：全套支付宝系统架构（内部架构图）近期，支付宝机房故障，不仅引得网友为马云担心，还为自己在支付宝余额宝各种宝的巨款担心。 为了让大家更好的了解支付宝系统的运作，网友...近期，支付宝机房故障，不仅引...
How can I install Apache Ant on Mac OS X?
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Ant is already installed on some older versions of Mac OS X, so you should run ant -version to test if it is installed before attempting to install it.
If it is not already installed, then your best bet is to install Homebrew (brew install ant) or MacPorts (sudo port install ap...