Avatar for the astral-sh user
astral-sh
ruff
BlogDocsChangelog

[syntax-errors] Tuple unpacking in `for` statement iterator clause before Python 3.9

#16558Merged
Comparing
brent/syn-unpacking-for-loop
(
93379e4
) with
main
(
a18d8bf
)
CodSpeed Performance Gauge
0%
Improvements
0
Regressions
0
Untouched
32
New
0
Dropped
0
Ignored
0

Benchmarks

Passed

red_knot_check_file[cold]
crates/ruff_benchmark/benches/red_knot.rs::check_file::benchmark_cold::red_knot_check_file[cold]
CodSpeed Performance Gauge
0%
86.6 ms
86.5 ms
linter/default-rules[numpy/globals.py]
crates/ruff_benchmark/benches/linter.rs::default_rules::benchmark_default_rules::linter/default-rules[numpy/globals.py]
CodSpeed Performance Gauge
0%
199.4 µs
199.3 µs
red_knot_check_file[incremental]
crates/ruff_benchmark/benches/red_knot.rs::check_file::benchmark_incremental::red_knot_check_file[incremental]
CodSpeed Performance Gauge
0%
5.2 ms
5.2 ms
lexer[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/lexer.rs::lexer::benchmark_lexer::lexer[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
218.4 µs
218.3 µs
lexer[pydantic/types.py]
crates/ruff_benchmark/benches/lexer.rs::lexer::benchmark_lexer::lexer[pydantic/types.py]
CodSpeed Performance Gauge
0%
488 µs
487.9 µs
formatter[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/formatter.rs::formatter::benchmark_formatter::formatter[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
1.9 ms
1.9 ms
formatter[numpy/globals.py]
crates/ruff_benchmark/benches/formatter.rs::formatter::benchmark_formatter::formatter[numpy/globals.py]
CodSpeed Performance Gauge
0%
241.1 µs
241.1 µs
lexer[large/dataset.py]
crates/ruff_benchmark/benches/lexer.rs::lexer::benchmark_lexer::lexer[large/dataset.py]
CodSpeed Performance Gauge
0%
1.1 ms
1.1 ms
lexer[numpy/globals.py]
crates/ruff_benchmark/benches/lexer.rs::lexer::benchmark_lexer::lexer[numpy/globals.py]
CodSpeed Performance Gauge
0%
28.9 µs
28.9 µs
lexer[unicode/pypinyin.py]
crates/ruff_benchmark/benches/lexer.rs::lexer::benchmark_lexer::lexer[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
75 µs
75 µs
formatter[pydantic/types.py]
crates/ruff_benchmark/benches/formatter.rs::formatter::benchmark_formatter::formatter[pydantic/types.py]
CodSpeed Performance Gauge
0%
3.5 ms
3.5 ms
formatter[large/dataset.py]
crates/ruff_benchmark/benches/formatter.rs::formatter::benchmark_formatter::formatter[large/dataset.py]
CodSpeed Performance Gauge
0%
9.5 ms
9.5 ms
formatter[unicode/pypinyin.py]
crates/ruff_benchmark/benches/formatter.rs::formatter::benchmark_formatter::formatter[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
663.5 µs
663.7 µs
parser[unicode/pypinyin.py]
crates/ruff_benchmark/benches/parser.rs::parser::benchmark_parser::parser[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
308.6 µs
308.7 µs
linter/all-with-preview-rules[pydantic/types.py]
crates/ruff_benchmark/benches/linter.rs::preview_rules::benchmark_preview_rules::linter/all-with-preview-rules[pydantic/types.py]
CodSpeed Performance Gauge
0%
10.6 ms
10.6 ms
parser[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/parser.rs::parser::benchmark_parser::parser[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
918.6 µs
919 µs
parser[pydantic/types.py]
crates/ruff_benchmark/benches/parser.rs::parser::benchmark_parser::parser[pydantic/types.py]
CodSpeed Performance Gauge
0%
1.9 ms
1.9 ms
linter/all-rules[pydantic/types.py]
crates/ruff_benchmark/benches/linter.rs::all_rules::benchmark_all_rules::linter/all-rules[pydantic/types.py]
CodSpeed Performance Gauge
0%
8.7 ms
8.7 ms
linter/default-rules[pydantic/types.py]
crates/ruff_benchmark/benches/linter.rs::default_rules::benchmark_default_rules::linter/default-rules[pydantic/types.py]
CodSpeed Performance Gauge
0%
1.9 ms
1.9 ms
parser[numpy/globals.py]
crates/ruff_benchmark/benches/parser.rs::parser::benchmark_parser::parser[numpy/globals.py]
CodSpeed Performance Gauge
0%
102.5 µs
102.5 µs
linter/all-rules[large/dataset.py]
crates/ruff_benchmark/benches/linter.rs::all_rules::benchmark_all_rules::linter/all-rules[large/dataset.py]
CodSpeed Performance Gauge
0%
17.1 ms
17.2 ms
linter/all-rules[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/linter.rs::all_rules::benchmark_all_rules::linter/all-rules[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
4.2 ms
4.2 ms
linter/all-with-preview-rules[numpy/globals.py]
crates/ruff_benchmark/benches/linter.rs::preview_rules::benchmark_preview_rules::linter/all-with-preview-rules[numpy/globals.py]
CodSpeed Performance Gauge
0%
849.7 µs
850.3 µs
linter/all-with-preview-rules[large/dataset.py]
crates/ruff_benchmark/benches/linter.rs::preview_rules::benchmark_preview_rules::linter/all-with-preview-rules[large/dataset.py]
CodSpeed Performance Gauge
0%
21.3 ms
21.3 ms
linter/all-with-preview-rules[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/linter.rs::preview_rules::benchmark_preview_rules::linter/all-with-preview-rules[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
5.1 ms
5.1 ms
parser[large/dataset.py]
crates/ruff_benchmark/benches/parser.rs::parser::benchmark_parser::parser[large/dataset.py]
CodSpeed Performance Gauge
0%
4.8 ms
4.8 ms
linter/default-rules[large/dataset.py]
crates/ruff_benchmark/benches/linter.rs::default_rules::benchmark_default_rules::linter/default-rules[large/dataset.py]
CodSpeed Performance Gauge
0%
3.8 ms
3.8 ms
linter/all-rules[numpy/globals.py]
crates/ruff_benchmark/benches/linter.rs::all_rules::benchmark_all_rules::linter/all-rules[numpy/globals.py]
CodSpeed Performance Gauge
0%
731.4 µs
732.1 µs
linter/default-rules[numpy/ctypeslib.py]
crates/ruff_benchmark/benches/linter.rs::default_rules::benchmark_default_rules::linter/default-rules[numpy/ctypeslib.py]
CodSpeed Performance Gauge
0%
943.8 µs
945 µs
linter/all-rules[unicode/pypinyin.py]
crates/ruff_benchmark/benches/linter.rs::all_rules::benchmark_all_rules::linter/all-rules[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
2.3 ms
2.3 ms
linter/default-rules[unicode/pypinyin.py]
crates/ruff_benchmark/benches/linter.rs::default_rules::benchmark_default_rules::linter/default-rules[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
365.1 µs
365.7 µs
linter/all-with-preview-rules[unicode/pypinyin.py]
crates/ruff_benchmark/benches/linter.rs::preview_rules::benchmark_preview_rules::linter/all-with-preview-rules[unicode/pypinyin.py]
CodSpeed Performance Gauge
0%
2.6 ms
2.6 ms

Commits

Click on a commit to change the comparison range
Base
main
a18d8bf
0%
[syntax-errors] Tuple unpacking in `for` statement iterator clause before Python 3.9 Summary -- This PR reuses a slightly modified version of the `check_tuple_unpacking` method added for detecting unpacking in `return` and `yield` statements to detect the same issue in the iterator clause of `for` loops. I ran into the same issue with a bare `for x in *rest: ...` example (invalid on every Python) and added it as a comment on https://github.com/astral-sh/ruff/issues/16520. I considered just making this an additional `StarTupleKind` variant as well, but this change was in a different version of Python, so I kept it separate. Test Plan -- New inline tests.
9ed44c7
1 month ago
by ntBre
0%
fix doc link and rewrap line
93379e4
1 month ago
by ntBre
© 2025 CodSpeed Technology
Home Terms PrivacyDocs