![]() Thanks to the wrapper, running an external command comes down to calling a function. ![]() We can go the low-level way and do much of this ourselves using the Python subprocess module, but luckily, Python also offers a wrapper that will take care of all the nitty-gritty details, and do so safely too. That copy, in turn, replaces itself with another process: the process you were looking to execute. First, the process forks itself, creating a copy. We can utilize this same technique to start another process, though. This can be useful if you want to parallelize your code and utilize multiple CPUs on your machine. ![]() The process forks itself, meaning a new copy of the process is created and started. What happens internally (inside the OS kernel) is what’s called a fork. A parent process spawning two sub-processes ![]()
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