Episode 4 - Frame Evaluation

core.py

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11M ago 1:13:20

MP3•Maison d'episode

What makes Python an interpreter? Today we're talking about ceval.c, the wonders of frame evaluation, and how it changed over the years.

# Timestamps

(00:00:00) INTRO

(00:00:59) BACK TO PYTHON 2.6

(00:02:53) Stack virtual machine

(00:04:41) First encounter with opcodes

(00:08:06) What even is frame evaluation?

(00:12:51) Stack! Which stack?

(00:15:46) PRESENT DAY

(00:16:41) Computed gotos

(00:21:22) PEP 523: JIT me, maybe

(00:26:53) Let's generate the interpreter

(00:29:08) The JIT is coming

(00:33:13) Python function call inlining

(00:37:23) Instrumentation: DTrace, PEP 669

(00:41:50) lltrace and pystats

(00:44:02) Eval breaker

(00:47:54) Signal handling

(00:50:47) Recursion limits

(00:54:27) String concatenation special case

(00:58:24) WHAT'S GOING ON IN CPYTHON?

(00:58:42) 3.12.0a2

(00:59:12) Critical section API adoption

(00:59:34) PyOnceFlag

(01:00:28) PyDict_GetItemRef()

(01:03:36) PyList_Extend() and PyDict_Pop()

(01:04:18) Parser: better error messages for non-matching elif/else

(01:05:39) glob.translate()

(01:07:22) TLS-PSK in the ssl module

(01:08:35) IDLE debugger improvements

(01:10:50) First micro-op in the Tier 2 interpreter

(01:11:18) OUTRO

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