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Python 3.x renamed the low-level module 'thread' to '_thread' -- I don't see why in the documentation. Does anyone know?
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The module "Thread" treats a thread as a function, while the module "threading" is implemented in an object oriented way, i.e. every thread corresponds to an object.
A thread is a lightweight process that ensures the execution of the process separately on the system. In Python 3, when multiple processors are running on a program, each processor runs simultaneously to execute its tasks separately.
Thread in a computer program is an execution path. Threading is creating additional independent execution paths in your program. Every program starts with at least one execution path/thread. You can create more threads to execute parallel tasks depending on your requirements.
We can then start executing the thread by calling the start() function. The start() function will return immediately and the operating system will execute the function in a separate thread as soon as it is able. And that's all there is to it.
It's been quite a long time since the low-level thread module was informally deprecated, with all users heartily encouraged to use the higher-level threading module instead; now with the ability to introduce backwards incompatibilities in Python 3, we've made that deprecation rather more than just "informal", that's all!-)
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It looks like the thread module became obsolete in 3.x in favor of the threading module. See PEP 3108.
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