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I'm not denying that IO is important to a certain class of Python programs too; but I still can't see what leads to the conclusion that IO bound programs are th

I'm not denying that IO is important to a certain class of Python programs too; but I still can't see what leads to the conclusion that IO bound programs are the primary use case for Python. There are enough evented and async io libraries being built for just about every platform right now, that doesn't make IO the center of any of them.

mateo411 13y ago
And then there is the GIL. So if you want to squeeze more performance out of your CPU bound task. You need to use the multiprocess module, because Python threading does not work well for CPU bound tasks.
- pekk 13y ago
  Since you are talking about CPU-bound tasks, it is relevant that numpy array operations release the GIL.
  - mateo411 13y ago
    True, you would have to write or use a Python extension written in C or C++.