What is the format of python source code after being converted by the interpreter?

#The format of the python source code converted by the interpreter is ".pyc".

When we write Python code, what we get is a text file with a .py extension that contains Python code. To run the code, you need the Python interpreter to execute the .py file.

The interpreter consists of a compiler and a virtual machine. The compiler is responsible for converting the source code into a bytecode file, and the virtual machine is responsible for executing the bytecode.

So, interpreted languages actually also have a compilation process, but this compilation process does not directly generate target code, but intermediate code (bytecode), and then the virtual machine interprets and executes the bytes line by line. code.

After executing python XX.py, the Python interpreter will be started. The compiler of the python interpreter will compile (interpret) the .py source file into bytecode to generate a PyCodeObject bytecode object and store it in memory. middle.

The virtual machine of the Python interpreter converts the bytecode objects in the execution memory into machine language. The virtual machine interacts with the operating system to enable the machine language to run on the machine hardware. After running, the python interpreter writes the PyCodeObject back to the pyc file.

pyc file, the file contains the magic number of python (to indicate the python version number used during compilation), the mtime of the source file (to keep the pyc and py files in sync), and the compiled code object.

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