These sorts of cases are why I wrote srgn [0]. It's based on tree-sitter too. Calling it as cat file.py | srgn --py def --py identifiers 'database' 'db'

These sorts of cases are why I wrote srgn [0]. It's based on tree-sitter too. Calling it as cat file.py | srgn --py def --py identifiers 'database' 'db' will replace all mentions of `database` inside identifiers inside (only!) function definitions (`def`) with `db`. An input like import database import pytest @pytest.fixture() def test_a(database): return database def test_b(database): return database database = "database" class database: pass is turned into import database import pytest @pytest.fixture() def test_a(db): return db def test_b(db): return db database = "database" class database: pass which seems roughly like what the author is after. Mentions of "database" outside function definitions are not modified. That sort of logic I always found hard to replicate in basic GNU-like tools. If run without stdin, the above command runs recursively, in-place (careful with that one!). Note: I just wrote this, and version 0.13.2 is required for the above to work. [0]: https://github.com/alexpovel/srgn https://github.com/alexpovel/srgn