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Guido van Rossum gvanrossum

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Popular repositories

500lines

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500 Lines or Less

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pegen

PEG parser generator for Python

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1,017 contributions in the last year

Contribution activity

February 2020

gvanrossum has no activity yet for this period.

January 2020

Created a pull request in gvanrossum/pegen that received 8 comments

By default, compile to bytecode rather than to AST

Use mode=1 to return an AST, or mode=0 to return None. Note that mode=1 is actually the slowest, since it has to convert the internal AST to an ast…

+45 −20 • 8 comments

bpo-39481: WIP: PEP 585 Jan 28
bpo-39235: Fix end location for genexp in call args Jan 9

PEP 585: updates green-lighted by Lukasz Jan 30

Fix bug in comparison rule Jan 29
Fix show_parse script after change of default mode Jan 27
Add formatting targets to the makefile Jan 26
Teach pegen to compute first sets Jan 26
Generate a 2D array which arranges the keywords by length Jan 24
Rearrange alternatives in grammar Jan 22
Generate different token type for each keyword Jan 21
Check for reserved keywords in name_token Jan 20
Set filename to '<string>' in run_parser in case tok->filename is NULL Jan 19
Refactor and simplify string token handling and parse them correctly in all grammars Jan 19
Add test_nasty_mutually_left_recursive to the c parser test suite Jan 17
Refactor visit_Alt in the C generator Jan 16
Remove TODO.md and notes.md Jan 15
Fix bug with starred expression in starred sequence Jan 13
Add del_targets Jan 13
Do not optimize away asserts in the CI Jan 13
Refactor star_targets rules Jan 13
Refactor targets rules Jan 12
Generate type for NAME, STRING and NUMBER variables Jan 12
Support STRING+ atoms and add support multiple string types (but still no f-strings) Jan 8
Refactor primary and slices rules Jan 8
Allow the C parser to make use of metas for header/footer inclusion Jan 6
Refactor rules for class_def and arguments Jan 6
Move all test cases to the test_ast_generation file Jan 5
Create a more general way to set context in AST nodes Jan 4

Make isinstance and issubclass error for GenericAlias Jan 31
Make collections.abc.* generic Jan 31
Make re.Match, re.Pattern, and io.IOBase generic Jan 29
Add static keyword to ga_repr_item Jan 29
PEP 585 steps 7-8: Implement repr for GenericAlias Jan 29
Implement PEP 585 for collections.deque and collections.defaultdict Jan 28

Import ABC from collections.abc instead of collections for Python 3.9 compatibility Jan 22

Fix linker error in debug build Jan 16

Created an issue in gvanrossum/pegen that received 7 comments

Integration into CPython

I talked to Łukasz and he's excited to see this integrated into CPython 3.9. Some of his suggestions: Test on the 100 most popular PyPI packages (…

7 comments

Profile the C code so we know what to optimize Jan 25
F-string support Jan 25
Ideas for optimizing the grammar Jan 20
Strings in AST should not include quotes Jan 18
Better tests for mutual left-recursion in C generated parsers Jan 17
Handle reserved words like the old parser Jan 15
Cleanup: delete TODO.md and notes.md Jan 12

ReadTheDocs build failures Jan 23

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