[issue35808] Let's retire pgen

[Ammar Askar]

Change by Ammar Askar :


--
nosy: +ammar2
nosy_count: 7.0 -> 8.0
pull_requests: +19667
pull_request: https://github.com/python/cpython/pull/20405

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Pablo Galindo Salgado  added the comment:


New changeset 1f24a719e7be5e49b876a5dc7daf21d01ee69faa by Pablo Galindo in 
branch 'master':
bpo-35808: Retire pgen and use pgen2 to generate the parser (GH-11814)
https://github.com/python/cpython/commit/1f24a719e7be5e49b876a5dc7daf21d01ee69faa


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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue35808] Let's retire pgen

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I didn't look at the PR yet, but this is a wonderful idea. I planned to do this 
just after rewriting generators of token-related data and code in Python 
(issue30455), but Pablo has overfoot me. Great!

--
nosy: +serhiy.storchaka

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
pull_requests:  -11829, 11830

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
pull_requests:  -11830

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
keywords: +patch, patch, patch
pull_requests: +11828, 11829, 11830
stage: needs patch -> patch review

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
keywords: +patch, patch
pull_requests: +11828, 11829
stage: needs patch -> patch review

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
keywords: +patch
pull_requests: +11828
stage: needs patch -> patch review

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[issue35808] Let's retire pgen

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
nosy: +pablogsal

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[issue35808] Let's retire pgen

[Guido van Rossum]

Guido van Rossum  added the comment:

@eamanu, feel free to submit a PR. I won't be available to guide you through 
the steps; there are other forums e.g. Zulip.

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[issue35808] Let's retire pgen

[Emmanuel Arias]

Emmanuel Arias  added the comment:

Hello!

I can help if you consider it appropriate :-)

--
nosy: +eamanu

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[issue35808] Let's retire pgen

[BTaskaya]

Change by BTaskaya :


--
nosy: +BTaskaya

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[issue35808] Let's retire pgen

[Ivan Levkivskyi]

Change by Ivan Levkivskyi :


--
nosy: +levkivskyi

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[issue35808] Let's retire pgen

[Ethan Smith]

Change by Ethan Smith :


--
nosy: +Ethan Smith

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[issue35808] Let's retire pgen

[Guido van Rossum]

New submission from Guido van Rossum :

Pgen is literally the oldest piece of technology in the CPython repo -- it was 
the first thing I wrote for Python over 29 years ago. It's not aged well, and 
building it requires various #if[n]def PGEN hacks in other parts of the code; 
it also depends more and more on CPython internals. There already is a 
replacement written in pure Python (Lib/lib2to3/pgen/), it just needs some glue 
to actually generate the graminit.[ch] files. Note that several other essential 
generation steps (everything listed for regen-all except regen-importlib and 
clinic) already depend on having a working Python interpreter around, so let's 
not worry about the bootstrapping process.

--
components: Build
messages: 334247
nosy: gvanrossum
priority: low
severity: normal
stage: needs patch
status: open
title: Let's retire pgen
versions: Python 3.8

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