Python: From Source to Execution
summary
Starts from a tiny snippet and traces concrete steps: the tokenizer produces tokens, the parser builds an AST, the compiler emits a code object with co_consts/co_code and name tables, and the assembler resolves jumps from a control flow graph into bytecode so the VM can run it. Demonstrations use compile() and the disassembler module on 1+2 showing the stack VM, about 150 opcodes, optimizer effects, and how frames provide the runtime environment.
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chapters (9)
- 0:00Python internals intro
- 2:10Simple Python code
- 3:12Tokenizing source code
- 4:35Parsing tokens into an abstract syntax tree
- 9:07AST to bytecode
- 12:36Understanding bytecode
- 21:32Frame objects
- 23:39Core execution loop
- 25:48Summary
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