5.5

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5.5 PythonPython“”——5.5 Python“” 5.5 Python“” “”“” PythonistaIO“” // CPU//“” PythonPython“” 5.5.1 / (Concurrency)“”CPU (Parallelism)CPU “”“”/CPU 5.5.2 (Thread) CPU “” GIL (Global Interpreter Lock)Python“”CPythonGILPythonCPUPythonCPU-boundGILPython IOIOGIL 5.5.3 (Process) “” GILPythonCPU CPU 5.5.