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Learn what Python bytecode is, how Python uses it to execute your code, and how knowing what it does can help you.
What Exactly is Python Bytecode? Bytecode is the under-the-hood representation of your Python code, a middle-ground between the high-level Python you write and the binary machine code executed by the computer’s processor.
Whenever the Python script compiles, it automatically generates a compiled code called as byte code. The byte-code is not actually interpreted to machine code, unless there is some exotic implementation such as PyPy.
Python bytecode is the hidden language that makes your Python program run. It’s a lower-level representation of your code that the Python interpreter understands and executes. Bytecode is generated from your source code through a compilation process and stored in .pyc files for faster execution in future runs.
Bytecode is the low-level representation of the python code which is the platform-independent, but the code is not the binary code and so it cannot run directly on the targeted machine. It is a set of instructions for the virtual machine which is also called as the Python Virtual Machine [PVM].
The job of the bytecode interpreter, in Python/ceval.c, is to execute Python code. Its main input is a code object, although this is not a direct argument to the interpreter. The interpreter is structured as a (recursive) function taking a thread state (tstate) and a stack frame (frame).
The bytecode is a low-level platform-independent representation of your source code, however, it is not the binary machine code and cannot be run by the target machine directly. In fact, it is a set of instructions for a virtual machine which is called the Python Virtual Machine (PVM).
Python code is executed using bytecode, which acts as a bridge between machine execution and source code that can be viewed by humans. Understanding bytecode may help with performance analysis,...
Learning to read and write Python byte code will help you understand Python better and help you to optimize your code. Also, it’s a starting step in understanding how virtual machine works. That’s it for today.
Python compiles the program to the bytecode which is an internal representation of python to the interpreter. Consider the following code which takes two function arguments that returns the multiplication of those two values, def multiplication(value1, value2): multiplied_value = value1 * value2 return multiplied_value.