Avatar for the PyO3 user
PyO3
pyo3
BlogDocsChangelog

replace `DowncastError` with `CastError`

#5468
Comparing
davidhewitt:cast-error
(
d2a8508
) with
main
(
da618c7
)
CodSpeed Performance Gauge
-10%
Regressions
1
Untouched
97
Ignored
21

Benchmarks

Failed

not_a_list_via_extract_enumRegression
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::not_a_list_via_extract_enum
CodSpeed Performance Gauge
-10%
17.6 µs19.6 µs

Passed

extract_str_extract_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_str_extract_fail
CodSpeed Performance Gauge
+4%
1.8 µs1.8 µs
ordered_richcmp
pyo3-benches/benches/bench_comparisons.rs::benches::criterion_benchmark::ordered_richcmp
CodSpeed Performance Gauge
+4%
2.4 µs2.3 µs
list_nth
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::list_nth
CodSpeed Performance Gauge
+3%
4.3 µs4.1 µs
list_nth_back
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::list_nth_back
CodSpeed Performance Gauge
+3%
4.3 µs4.2 µs
err_new_without_gil
pyo3-benches/benches/bench_err.rs::benches::criterion_benchmark::err_new_without_gil
CodSpeed Performance Gauge
+2%
1.2 µs1.2 µs
vec_into_pyobject
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::vec_into_pyobject
CodSpeed Performance Gauge
+2%
2.5 µs2.4 µs
bytes_new_medium
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::bytes_new_medium
CodSpeed Performance Gauge
+2%
1.6 µs1.5 µs
byte_slice_into_pyobject_medium
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::byte_slice_into_pyobject_medium
CodSpeed Performance Gauge
+2%
1.6 µs1.6 µs
tuple_nth
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_nth
CodSpeed Performance Gauge
+2%
3.9 µs3.9 µs
tuple_nth_back
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_nth_back
CodSpeed Performance Gauge
+2%
4 µs3.9 µs
test_simple_rs
pytests/tests/test_pyfunctions.py::test_simple_rs
CodSpeed Performance Gauge
+1%
18.3 µs18.1 µs
test_simple_kwargs_rs
pytests/tests/test_pyfunctions.py::test_simple_kwargs_rs
CodSpeed Performance Gauge
+1%
18.6 µs18.5 µs
clean_attach
pyo3-benches/benches/bench_attach.rs::benches::criterion_benchmark::clean_attach
CodSpeed Performance Gauge
+1%
3.5 µs3.5 µs
identify_object_type
pyo3-benches/benches/bench_any.rs::benches::criterion_benchmark::identify_object_type
CodSpeed Performance Gauge
+1%
15.7 µs15.6 µs
test_simple_args_kwargs_rs
pytests/tests/test_pyfunctions.py::test_simple_args_kwargs_rs
CodSpeed Performance Gauge
+1%
19.1 µs19 µs
test_class_method
pytests/tests/test_pyclasses.py::test_class_method
CodSpeed Performance Gauge
+1%
17.9 µs17.8 µs
test_simple_args_rs
pytests/tests/test_pyfunctions.py::test_simple_args_rs
CodSpeed Performance Gauge
+1%
18.9 µs18.8 µs
test_positional_only_py
pytests/tests/test_pyfunctions.py::test_positional_only_py
CodSpeed Performance Gauge
+1%
13.6 µs13.6 µs
test_method_call_py
pytests/tests/test_pyclasses.py::test_method_call_py
CodSpeed Performance Gauge
+1%
14 µs13.9 µs
test_many_keyword_arguments_py
pytests/tests/test_pyfunctions.py::test_many_keyword_arguments_py
CodSpeed Performance Gauge
+1%
16.9 µs16.9 µs
iter_tuple
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::iter_tuple
CodSpeed Performance Gauge
+1%
5.5 ms5.5 ms
extract_bigint_extract_fail
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_extract_fail
CodSpeed Performance Gauge
+1%
11.6 µs11.5 µs
test_none_rs
pytests/tests/test_pyfunctions.py::test_none_rs
CodSpeed Performance Gauge
0%
12.8 µs12.7 µs
tuple_get_borrowed_item_unchecked
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_get_borrowed_item_unchecked
CodSpeed Performance Gauge
0%
3.1 ms3.1 ms
iter_list
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::iter_list
CodSpeed Performance Gauge
0%
6.3 ms6.3 ms
test_with_typed_args_py
pytests/tests/test_pyfunctions.py::test_with_typed_args_py
CodSpeed Performance Gauge
0%
13.7 µs13.6 µs
tuple_get_item_unchecked
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_get_item_unchecked
CodSpeed Performance Gauge
0%
3.3 ms3.3 ms
list_get_item_unchecked
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::list_get_item_unchecked
CodSpeed Performance Gauge
0%
3.3 ms3.3 ms
test_args_kwargs_rs
pytests/tests/test_pyfunctions.py::test_args_kwargs_rs
CodSpeed Performance Gauge
0%
14.4 µs14.3 µs
tuple_get_borrowed_item
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_get_borrowed_item
CodSpeed Performance Gauge
0%
3.6 ms3.6 ms
tuple_get_item
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_get_item
CodSpeed Performance Gauge
0%
3.8 ms3.8 ms
list_get_item
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::list_get_item
CodSpeed Performance Gauge
0%
3.9 ms3.9 ms
extract_hashmap
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::extract_hashmap
CodSpeed Performance Gauge
0%
19.8 ms19.7 ms
iter_set
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark::iter_set
CodSpeed Performance Gauge
0%
10.3 ms10.3 ms
extract_hashbrown_set
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark::extract_hashbrown_set
CodSpeed Performance Gauge
0%
15.8 ms15.7 ms
iter_dict
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::iter_dict
CodSpeed Performance Gauge
0%
11 ms11 ms
test_none_py
pytests/tests/test_pyfunctions.py::test_none_py
CodSpeed Performance Gauge
0%
13.4 µs13.4 µs
test_empty_class_init_py
pytests/tests/test_pyclasses.py::test_empty_class_init_py
CodSpeed Performance Gauge
0%
14 µs14 µs
extract_btreemap
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::extract_btreemap
CodSpeed Performance Gauge
0%
37 ms36.9 ms
extract_hashset
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark::extract_hashset
CodSpeed Performance Gauge
0%
20.3 ms20.3 ms
test_simple_args_kwargs_py
pytests/tests/test_pyfunctions.py::test_simple_args_kwargs_py
CodSpeed Performance Gauge
0%
20.7 µs20.7 µs
extract_btreeset
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark::extract_btreeset
CodSpeed Performance Gauge
0%
15.3 ms15.3 ms
drop_many_objects_without_gil
pyo3-benches/benches/bench_py.rs::benches::criterion_benchmark::drop_many_objects_without_gil
CodSpeed Performance Gauge
0%
44.9 µs44.8 µs
dict_get_item
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::dict_get_item
CodSpeed Performance Gauge
0%
16.3 ms16.3 ms
call_0
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_0
CodSpeed Performance Gauge
0%
191.6 µs191.6 µs
call_one_arg
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_one_arg
CodSpeed Performance Gauge
0%
232.1 µs232.1 µs
call_method_0
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_method_0
CodSpeed Performance Gauge
0%
608.3 µs608.2 µs
list_new
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::list_new
CodSpeed Performance Gauge
0%
6.7 ms6.7 ms
test_args_kwargs_py
pytests/tests/test_pyfunctions.py::test_args_kwargs_py
CodSpeed Performance Gauge
0%
19 µs19 µs
call
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call
CodSpeed Performance Gauge
0%
609.6 µs609.5 µs
call_method_1
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_method_1
CodSpeed Performance Gauge
0%
657.5 µs657.5 µs
extract_hashbrown_map
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::extract_hashbrown_map
CodSpeed Performance Gauge
0%
17.1 ms17.1 ms
tuple_to_list
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_to_list
CodSpeed Performance Gauge
0%
1.6 ms1.6 ms
tuple_new
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_new
CodSpeed Performance Gauge
0%
6.7 ms6.7 ms
dict_new
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::dict_new
CodSpeed Performance Gauge
0%
25.7 ms25.7 ms
collect_generic_iterator
pyo3-benches/benches/bench_any.rs::benches::criterion_benchmark::collect_generic_iterator
CodSpeed Performance Gauge
0%
95.8 ms95.8 ms
extract_bigint_huge_negative
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_huge_negative
CodSpeed Performance Gauge
0%
13.2 µs13.2 µs
drop_many_objects
pyo3-benches/benches/bench_py.rs::benches::criterion_benchmark::drop_many_objects
CodSpeed Performance Gauge
0%
3.8 µs3.8 µs
test_proto_call_py
pytests/tests/test_pyclasses.py::test_proto_call_py
CodSpeed Performance Gauge
0%
14.4 µs14.4 µs
extract_bigint_small
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_small
CodSpeed Performance Gauge
0%
2.6 µs2.6 µs
test_simple_kwargs_py
pytests/tests/test_pyfunctions.py::test_simple_kwargs_py
CodSpeed Performance Gauge
0%
20.4 µs20.4 µs
call_1
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_1
CodSpeed Performance Gauge
0%
253.5 µs253.5 µs
extract_int_extract_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_int_extract_fail
CodSpeed Performance Gauge
0%
11.5 µs11.5 µs
decimal_via_extract
pyo3-benches/benches/bench_decimal.rs::benches::criterion_benchmark::decimal_via_extract
CodSpeed Performance Gauge
0%
14.9 µs14.9 µs
set_new
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark::set_new
CodSpeed Performance Gauge
0%
15.2 ms15.2 ms
tuple_new_list
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_new_list
CodSpeed Performance Gauge
0%
2.1 ms2.1 ms
call_method_one_arg
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_method_one_arg
CodSpeed Performance Gauge
0%
628.1 µs628.2 µs
byte_slice_into_pyobject_large
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::byte_slice_into_pyobject_large
CodSpeed Performance Gauge
0%
176.7 µs176.7 µs
bytes_new_large
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::bytes_new_large
CodSpeed Performance Gauge
0%
176.7 µs176.7 µs
ordered_dunder_methods
pyo3-benches/benches/bench_comparisons.rs::benches::criterion_benchmark::ordered_dunder_methods
CodSpeed Performance Gauge
0%
2.6 µs2.6 µs
vec_bytes_from_py_bytes_large
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytes_large
CodSpeed Performance Gauge
0%
177.7 µs177.7 µs
vec_bytes_from_py_bytearray_large
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytearray_large
CodSpeed Performance Gauge
0%
177.9 µs178.1 µs
test_simple_args_py
pytests/tests/test_pyfunctions.py::test_simple_args_py
CodSpeed Performance Gauge
0%
17.8 µs17.9 µs
first_time_init
pyo3-benches/benches/bench_pyclass.rs::benches::criterion_benchmark::first_time_init
CodSpeed Performance Gauge
0%
39.7 µs39.8 µs
test_positional_only_rs
pytests/tests/test_pyfunctions.py::test_positional_only_rs
CodSpeed Performance Gauge
0%
13.7 µs13.8 µs
call_method
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark::call_method
CodSpeed Performance Gauge
0%
1.3 ms1.3 ms
test_with_typed_args_rs
pytests/tests/test_pyfunctions.py::test_with_typed_args_rs
CodSpeed Performance Gauge
0%
17.2 µs17.3 µs
test_many_keyword_arguments_rs
pytests/tests/test_pyfunctions.py::test_many_keyword_arguments_rs
CodSpeed Performance Gauge
0%
18.9 µs18.9 µs
extract_bigint_huge_positive
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_huge_positive
CodSpeed Performance Gauge
0%
11.6 µs11.7 µs
extract_float_extract_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_float_extract_fail
CodSpeed Performance Gauge
0%
11.6 µs11.7 µs
test_simple_py
pytests/tests/test_pyfunctions.py::test_simple_py
CodSpeed Performance Gauge
-1%
17.4 µs17.4 µs
test_setter
pytests/tests/test_pyclasses.py::test_setter
CodSpeed Performance Gauge
-1%
16.9 µs17 µs
test_static_method
pytests/tests/test_pyclasses.py::test_static_method
CodSpeed Performance Gauge
-1%
15.7 µs15.8 µs
dirty_attach
pyo3-benches/benches/bench_attach.rs::benches::criterion_benchmark::dirty_attach
CodSpeed Performance Gauge
-1%
5 µs5 µs
test_class_attribute
pytests/tests/test_pyclasses.py::test_class_attribute
CodSpeed Performance Gauge
-1%
14.1 µs14.2 µs
extract_bigint_big_negative
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_big_negative
CodSpeed Performance Gauge
-1%
3.9 µs4 µs
err_new_restore_and_fetch
pyo3-benches/benches/bench_err.rs::benches::criterion_benchmark::err_new_restore_and_fetch
CodSpeed Performance Gauge
-1%
7.7 µs7.7 µs
test_method_call
pytests/tests/test_pyclasses.py::test_method_call
CodSpeed Performance Gauge
-1%
14.9 µs15 µs
extract_bigint_big_positive
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark::extract_bigint_big_positive
CodSpeed Performance Gauge
-1%
3.7 µs3.7 µs
getattr_intern
pyo3-benches/benches/bench_intern.rs::benches::criterion_benchmark::getattr_intern
CodSpeed Performance Gauge
-1%
3.3 µs3.4 µs
tuple_into_pyobject
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::tuple_into_pyobject
CodSpeed Performance Gauge
-1%
2.8 µs2.9 µs
test_proto_call
pytests/tests/test_pyclasses.py::test_proto_call
CodSpeed Performance Gauge
-1%
13.4 µs13.5 µs
test_empty_class_init
pytests/tests/test_pyclasses.py::test_empty_class_init
CodSpeed Performance Gauge
-1%
23.4 µs23.7 µs
enum_from_pyobject
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::enum_from_pyobject
CodSpeed Performance Gauge
-1%
23.6 µs23.9 µs
vec_bytes_from_py_bytes_medium
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytes_medium
CodSpeed Performance Gauge
-1%
2 µs2 µs
vec_bytes_from_py_bytearray_medium
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytearray_medium
CodSpeed Performance Gauge
-6%
2 µs2.1 µs
test_getter
pytests/tests/test_pyclasses.py::test_getter
CodSpeed Performance Gauge
-6%
16.4 µs17.4 µs

Ignored

bytes_new_small
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::bytes_new_small
Ignored
CodSpeed Performance Gauge
+11%
305.8 ns276.7 ns
sequence_from_list
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark::sequence_from_list
Ignored
CodSpeed Performance Gauge
-10%
272.5 ns301.7 ns
sequence_from_tuple
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark::sequence_from_tuple
Ignored
CodSpeed Performance Gauge
+24%
301.7 ns243.3 ns
vec_bytes_from_py_bytearray_small
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytearray_small
Ignored
CodSpeed Performance Gauge
-10%
776.1 ns863.9 ns
not_a_list_via_extract
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::not_a_list_via_extract
Ignored
CodSpeed Performance Gauge
+15%
243.6 ns211.9 ns
mapping_from_dict
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark::mapping_from_dict
Ignored
CodSpeed Performance Gauge
0%
301.7 ns301.7 ns
getattr_direct
pyo3-benches/benches/bench_intern.rs::benches::criterion_benchmark::getattr_direct
Ignored
CodSpeed Performance Gauge
0%
6.5 µs6.5 µs
extract_float_cast_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_float_cast_success
Ignored
CodSpeed Performance Gauge
0%
178.3 ns178.3 ns
vec_bytes_from_py_bytes_small
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::vec_bytes_from_py_bytes_small
Ignored
CodSpeed Performance Gauge
0%
802.5 ns802.8 ns
extract_float_extract_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_float_extract_success
Ignored
CodSpeed Performance Gauge
0%
331.9 ns331.9 ns
byte_slice_into_pyobject_small
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark::byte_slice_into_pyobject_small
Ignored
CodSpeed Performance Gauge
+10%
335 ns305.8 ns
extract_int_cast_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_int_cast_fail
Ignored
CodSpeed Performance Gauge
+44%
306.9 ns213.1 ns
extract_str_cast_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_str_cast_fail
Ignored
CodSpeed Performance Gauge
+29%
273.6 ns211.9 ns
extract_float_cast_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_float_cast_fail
Ignored
CodSpeed Performance Gauge
+8%
456.9 ns424.7 ns
extract_int_cast_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_int_cast_success
Ignored
CodSpeed Performance Gauge
+13%
519.4 ns461.1 ns
extract_str_cast_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_str_cast_success
Ignored
CodSpeed Performance Gauge
+11%
583.1 ns524.7 ns
not_a_list_via_cast
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::not_a_list_via_cast
Ignored
CodSpeed Performance Gauge
+1%
214.4 ns211.9 ns
extract_int_extract_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_int_extract_success
Ignored
CodSpeed Performance Gauge
0%
456.1 ns456.1 ns
list_via_extract
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::list_via_extract
Ignored
CodSpeed Performance Gauge
0%
183.9 ns183.9 ns
extract_str_extract_success
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark::extract_str_extract_success
Ignored
CodSpeed Performance Gauge
0%
608.3 ns610 ns
list_via_cast
pyo3-benches/benches/bench_frompyobject.rs::benches::criterion_benchmark::list_via_cast
Ignored
CodSpeed Performance Gauge
-16%
149.2 ns178.3 ns

Commits

Click on a commit to change the comparison range
Base
main
da618c7
-10.16%
newsfragment, CI
d2a8508
7 days ago
by davidhewitt
© 2025 CodSpeed Technology
Home Terms Privacy Docs