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Signal implementation is very complex and is kernel specific. In other words, different kernels will implement signals differently. A simplified explanation is as follows: The CPU, based on a special register value, has an address in memory where it expects to find an "interrupt descriptor table" which is actually a vector table. There is one vector for ...


Use the system site-packages for system wide installs that work together with the python version that comes with the system. If you want to experiment, either with a particular python version, or with the same version as the system uses, but without polluting the system wide site-packages/dist-packages (under /usr/lib/pythonX.Y/ then you use virtualenv. ...

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