Explore the inner workings of the Python interpreter in this 26-minute conference talk from EuroPython 2016. Dive into the CPython project structure, tracing the code from command line to interpreter. Examine the lexer, parser, and generation of Abstract Syntax Trees (AST) and bytecodes. Analyze bytecodes using the dis module and understand the stack-based virtual machine. Follow the interpreter's main loop and learn how CPython can be embedded in C projects. Discover optimization techniques like the peepholer and gain insights into the ceval.c file. Perfect for new contributors looking to understand CPython's internals, this talk provides a comprehensive overview of the Python interpreter's journey from source code to execution.