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Feb 25, 2024 · The Role of Bytecode in Python. Understanding Bytecode is like having a backstage pass to a Python performance. It offers insights into: Efficiency: By examining Bytecode, you can pinpoint bottlenecks in your code. Portability: Bytecode is why Python code can run across platforms without modification.
- How Python Works
- Inside The Python Virtual Machine
- Accessing and Understanding Python Bytecode
- Putting Bytecode to Use
- Further Reading
Python is often described as an interpreted language—one in which your source code is translated into native CPU instructions as the program runs—but this is only partially correct. Python, like many interpreted languages, actually compiles source code to a set of instructions for a virtual machine, and the Python interpreter is an implementation o...
CPython uses a stack-based virtual machine. That is, it's oriented entirely around stack data structures (where you can "push" an item onto the "top" of the structure, or "pop" an item off the "top"). CPython uses three types of stacks: 1. The call stack. This is the main structure of a running Python program. It has one item—a "frame"—for each cur...
If you want to play around with this, the dis module in the Python standard library is a huge help; the dis module provides a "disassembler" for Python bytecode, making it easy to get a human-readable version and look up the various bytecode instructions. The documentation for the dis modulegoes over its contents and provides a full list of bytecod...
Now that you've read this far, you might be thinking "OK, I guess that's cool, but what's the practical value of knowing this?" Setting aside curiosity for curiosity's sake, understanding Python bytecode is useful in a few ways. First, understanding Python's execution model helps you reason about your code. People like to joke about C being a kind ...
If you'd like to learn more about Python bytecode, the Python virtual machine, and how they work, I recommend these resources: 1. Inside the Python Virtual Machineby Obi Ike-Nwosu is a free online book that does a deep dive into the Python interpreter, explaining in detail how Python actually works. 2. A Python Interpreter Written in Pythonby Allis...
When we execute some source code, Python compiles it into byte code. Compilation is a translation step, and the byte code is a low-level platform-independent representation of source code. Note that the Python byte code is not binary machine code (e.g., instructions for an Intel chip).
Jul 10, 2020 · The execution of the Python program involves 2 Steps: Compilation. Interpreter. Compilation. The program is converted into byte code. Byte code is a fixed set of instructions that represent arithmetic, comparison, memory operations, etc. It can run on any operating system and hardware. The byte code instructions are created in the .pyc file.
Aug 10, 2023 · Step 4: Byte code that is .pyc file is then sent to the Python Virtual Machine (PVM) which is the Python interpreter. PVM converts the Python byte code into machine-executable code and in this interpreter reads and executes the given file line by line.
Apr 9, 2024 · Compilation to Bytecode. Once the parse tree is generated, the interpreter interprets it into an intermediate representation called bytecode. Bytecode is a low-degree, platform-unbiased representation of the source code this is executed by using the Python Virtual Machine (PVM).
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May 22, 2024 · Python is an interpreted language, but it also involves a compilation step where your Python code (.py) is compiled into bytecode (.pyc). This bytecode is then executed by the Python Virtual Machine (PVM). What is Bytecode? Bytecode is an intermediate representation of your source code.
