VERIFIED

samuelcolvin__pydantic-2806

VERIFIED on appeal

2 attempts, 1 appeal. 1 file, 25 added and 2 removed lines. Tokens: 1,576,700 tokens. Model cost: $0.48. Sandbox time: 2 min 56 s.

Open receipt

The plan

Repository: samuelcolvin/pydantic
Base commit: 2579086 (image tag)
Issue: typing.Counter is not supported ### Checks * [x] I added a descriptive title to this issue * [x] I have searched (google, github) for similar issues and couldn't find anything * [x] I have read and followed [the docs](https://pydantic-docs.helpmanual.io/) and still think this is a bug # Bug

Files to edit

pydantic/fields.py

Approach: Add explicit detection and normalization logic for `Counter` within `_type_analysis` before processing its type arguments.

Attempt 1

REJECTED

Agent branch

Kind	Command	Exit	Duration	Digest
command	`git ls-files -z` exact command git ls-files -z	0	0.004s	1910e6d6
command	`grep -n "test_typing.counter\\|Counter" tests/test_main.py` exact command grep -n "test_typing.counter\\|Counter" tests/test_main.py	0	0.003s	a6a532c4
write	`write pydantic/fields.py` exact command /opt/receipts-ee41a1246a104a369bd61fd3645fb86b/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-ee41a1246a104a369bd61fd3645fb86b/incoming/bcd4b2a858db69bc1ef4af8a30c20400f563fb6ce5c9dd32d02389e54fcde2b3 /pydantic/pydantic/fields.py'	0	0.005s	83adf897
write	`write pydantic/fields.py` exact command /opt/receipts-6a09f7a547c64023b6d02ebe4e888d0e/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-6a09f7a547c64023b6d02ebe4e888d0e/incoming/6120c45707e38898475afd4b38137762dfc74454b8f6958b36709014930935f1 /pydantic/pydantic/fields.py'	0	0.005s	938206c9
command	`pytest tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v` exact command /opt/receipts-2daaf74bf27e41d9983fde245fa1f155/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-2daaf74bf27e41d9983fde245fa1f155/receipts_pytest.py tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-5.xml	1	1.253s	6243ca2016b4
write	`write /tmp/debug_counter.py` exact command /opt/receipts-ecef54da5ccb4c7eb5b6615351552ae1/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-ecef54da5ccb4c7eb5b6615351552ae1/incoming/ebf6fb257a455a541cd6ec015d7475d520d573b01e6c70767a926a9bdeb654dc /tmp/debug_counter.py'	0	0.006s	dc3e21ed
command	`python /tmp/debug_counter.py` exact command python /tmp/debug_counter.py	0	0.096s	1b737f2c
write	`write pydantic/fields.py` exact command /opt/receipts-25d467a41f6340f492a26d6632cf6059/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-25d467a41f6340f492a26d6632cf6059/incoming/9bd519de774109c13e8d0feae134320774a7e767a243009d318bdd088a30fcd9 /pydantic/pydantic/fields.py'	0	0.005s	e1b9b368

show all 45 steps

Kind	Command	Exit	Duration	Digest
command	`pytest tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v` exact command /opt/receipts-08decbe568f741adaad8cbd5e4a3ea56/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-08decbe568f741adaad8cbd5e4a3ea56/receipts_pytest.py tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-9.xml	1	1.255s	6597c7679f21
write	`write /tmp/debug_type_analysis.py` exact command /opt/receipts-8b26220140284ef4b6d2a366bf751827/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-8b26220140284ef4b6d2a366bf751827/incoming/7b4cca451490997b340c44653f7e2fc5f5c0dce79069bb8894ee62ff9e142cf7 /tmp/debug_type_analysis.py'	0	0.004s	6f2b922b
command	`python /tmp/debug_type_analysis.py` exact command python /tmp/debug_type_analysis.py	0	0.060s	220e9dce
write	`write /tmp/debug_issubclass.py` exact command /opt/receipts-262f4a34a75d4a5a8dbc10548fa36430/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-262f4a34a75d4a5a8dbc10548fa36430/incoming/e1165188207095c4766088866f893cad50f558e2b1f1fdc86d7cc50428a49a20 /tmp/debug_issubclass.py'	0	0.005s	1a90ab3c
command	`python /tmp/debug_issubclass.py` exact command python /tmp/debug_issubclass.py	0	0.055s	89b6e28c
write	`write pydantic/fields.py` exact command /opt/receipts-eb608946f9db4e56b0e29bad3a784820/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-eb608946f9db4e56b0e29bad3a784820/incoming/562b465f2a58cf8757765265eda49b89991dbb7fdde6fa8017d26afb10d52b7d /pydantic/pydantic/fields.py'	0	0.005s	5a47e8de
command	`python /tmp/debug_type_analysis.py` exact command python /tmp/debug_type_analysis.py	0	0.064s	560062a8
write	`write pydantic/fields.py` exact command /opt/receipts-75b8114384874422bc507fcee1945ec2/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-75b8114384874422bc507fcee1945ec2/incoming/a1275562cd2346982599c2fba3c4d75b613997323eb2102432614326351f3ef3 /pydantic/pydantic/fields.py'	0	0.004s	9e8da4d3
command	`python /tmp/debug_type_analysis.py` exact command python /tmp/debug_type_analysis.py	0	0.061s	f6aae5ad
write	`write pydantic/fields.py` exact command /opt/receipts-87f4390060e540f8be9a0fb01c9a6a8f/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-87f4390060e540f8be9a0fb01c9a6a8f/incoming/40b1ef01c7f5067f539ded202e4bbcbe061ee61921e09f810e3b0e382d2bd4a5 /pydantic/pydantic/fields.py'	0	0.005s	bba6c4f4
command	`python /tmp/debug_type_analysis.py` exact command python /tmp/debug_type_analysis.py	0	0.061s	0f26bd0e
write	`write /tmp/debug_issubclass_dict.py` exact command /opt/receipts-edc8ce3dc8064cc785c777e788cddd7d/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-edc8ce3dc8064cc785c777e788cddd7d/incoming/e9388847ecd839fafac2170ca3cfa27dba5d2778e5621171e92e0de5d91ec045 /tmp/debug_issubclass_dict.py'	0	0.008s	0d42668e
command	`python /tmp/debug_issubclass_dict.py` exact command python /tmp/debug_issubclass_dict.py	0	0.022s	80a552c6
write	`write pydantic/fields.py` exact command /opt/receipts-2c4ec1135b244bacb11867c02f87fc09/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-2c4ec1135b244bacb11867c02f87fc09/incoming/41c76db10e3b39e0221d6ef15c2f1a5baaf99a306c9611032f7567306e31c8c7 /pydantic/pydantic/fields.py'	0	0.005s	dba9f91e
command	`python /tmp/debug_type_analysis.py` exact command python /tmp/debug_type_analysis.py	0	0.061s	2ec0bc23
write	`write pydantic/fields.py` exact command /opt/receipts-8ee146541d034808987111c9ff0d4d52/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-8ee146541d034808987111c9ff0d4d52/incoming/4fc4df57a28ea7e307f18734f498a7f10c5359fa2387a6938dee5a71df3a98c7 /pydantic/pydantic/fields.py'	0	0.004s	b09ddcd5
write	`write pydantic/fields.py` exact command /opt/receipts-9c896a1180684f55a24f5f400dfc265a/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-9c896a1180684f55a24f5f400dfc265a/incoming/90c740711814d60867f3e0fb3d409e012cea08ba88522b22aa44c3db4cf1ac80 /pydantic/pydantic/fields.py'	0	0.005s	25bf7a22
command	`pytest tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v` exact command /opt/receipts-7c59dbc11e8c4487a11420e5b1c1a448/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-7c59dbc11e8c4487a11420e5b1c1a448/receipts_pytest.py tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-26.xml	1	1.170s	a5c29f6129d4
command	`grep -n "SHAPE_.=" pydantic/fields.py` exact command grep -n "SHAPE_.=" pydantic/fields.py	0	0.003s	02cd47d2
command	`find /pydantic -name ".py" -exec grep -l "__repr__\\|__str__" {} \; \| head -5` exact command find /pydantic -name ".py" -exec grep -l "__repr__\\|__str__" {} \; \| head -5	0	0.269s	71f8d9ed
command	`find /pydantic -name "main.py" -type f` exact command find /pydantic -name "main.py" -type f	0	0.005s	4f18ed31
command	`grep -n "__repr__\\|__str__" /pydantic/pydantic/main.py` exact command grep -n "__repr__\\|__str__" /pydantic/pydantic/main.py	1	0.003s	f92defd6
command	`grep -n "__repr__\\|__str__" /pydantic/pydantic/utils.py` exact command grep -n "__repr__\\|__str__" /pydantic/pydantic/utils.py	0	0.003s	ee884304
command	`grep -n "__repr_args__" /pydantic/pydantic/fields.py` exact command grep -n "__repr_args__" /pydantic/pydantic/fields.py	0	0.003s	818cb6b9
command	`grep -n "_type_display" /pydantic/pydantic/fields.py` exact command grep -n "_type_display" /pydantic/pydantic/fields.py	0	0.003s	24b9c0fe
write	`write /tmp/debug_display.py` exact command /opt/receipts-700464dc632f449bb046b82ce10cce71/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-700464dc632f449bb046b82ce10cce71/incoming/a0ee4aebe10660fa5bddec06cfd6f9dd07af59b6fe8b0c51f42e77a322d2d769 /tmp/debug_display.py'	0	0.005s	071e6674
command	`python /tmp/debug_display.py` exact command python /tmp/debug_display.py	0	0.063s	1e74c90e
write	`write pydantic/fields.py` exact command /opt/receipts-ca4624c9d67c4bbca5aa0b64838da087/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-ca4624c9d67c4bbca5aa0b64838da087/incoming/e7f00be35a76c8640e5fcb2e3ae86230e968aa35dbc61edcd89caabf8c4d5a53 /pydantic/pydantic/fields.py'	0	0.005s	e1720f1c
write	`write pydantic/fields.py` exact command /opt/receipts-486fa1fcb5dd49b598d75ea5f9399b64/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-486fa1fcb5dd49b598d75ea5f9399b64/incoming/edc1b667b60d62ac0332a1e38f3d1ec5330a2339130f0b71df3b118515a3cff2 /pydantic/pydantic/fields.py'	0	0.005s	192ebb0a
write	`write pydantic/fields.py` exact command /opt/receipts-26ab74b0a4bc40219a5816475e745ff3/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-26ab74b0a4bc40219a5816475e745ff3/incoming/444e6ad1922454628bfb3aa313c288f1303062b894d72dcc15f9ce9cee9c472c /pydantic/pydantic/fields.py'	0	0.005s	674ee60f
write	`write pydantic/fields.py` exact command /opt/receipts-7412be46a6974ce89b1d56bad2d05389/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-7412be46a6974ce89b1d56bad2d05389/incoming/f6f592b020867cbdbb3d15e7245446421c533b3955379f5828aecbcd5e47d092 /pydantic/pydantic/fields.py'	0	0.005s	ab1c4127
command	`python /tmp/debug_display.py` exact command python /tmp/debug_display.py	0	0.064s	d87bcb37
write	`write /tmp/debug_defaultdict.py` exact command /opt/receipts-814fd982df784f72ae944682e300000d/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-814fd982df784f72ae944682e300000d/incoming/f94b4f8edad5df370fffb6e602f14a972602c5b995d511b8f5deb09e3586e9e9 /tmp/debug_defaultdict.py'	0	0.005s	c7f0b924

Kind	Command	Duration	Digest
command	`python /tmp/debug_defaultdict.py` exact command python /tmp/debug_defaultdict.py	0.060s	f7774d6d
write	`write /tmp/debug_counter_repr.py` exact command /opt/receipts-c50b7d0683f843ab951e9e68aa9f100b/bin/busybox sh -c 'mkdir -p /tmp && cp /opt/receipts-c50b7d0683f843ab951e9e68aa9f100b/incoming/52050247d65977dd03425636be43b2e024bf239af2dd46f48fb979545a4d5fdf /tmp/debug_counter_repr.py'	0.004s	918c87ce
command	`python /tmp/debug_counter_repr.py` exact command python /tmp/debug_counter_repr.py	0.057s	71b9d62f
diff	`capture patch` exact command compute patch in executor staging agent1-799f6358c63b450ab6d39096e688dfb0: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames 5ab0a1cbccf3fa177c8a6429d252150944cf4dad	0.039s	e8d0a57feccd

Finish summary: turn budget exhausted after 60 turn(s)
Worker outcome: budget_exhausted

Claims not recorded

Witness branch w1

Kind Command Exit Duration Digest

apply

Kind	Command	Exit	Duration	Digest
apply	`apply patch 0e2a9f118bf6` exact command git update-index -q --refresh; git apply -v --3way --recount --ignore-space-change --whitespace=nowarn /opt/receipts-985a020d6888476182b4da40396208e7/incoming/0e2a9f118bf6d222027f5e1a99276bdaca9b74a6b3b326a3c847b5e6fa9f6033.diff	0	0.011s	e8d0a57feccd
verification	`pytest (witness) tests/test_main.py` exact command /opt/receipts-a776d0c2726a4df5905714ad9c22cb72/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-a776d0c2726a4df5905714ad9c22cb72/receipts_pytest.py --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning tests/test_main.py -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/w1-2.xml	1	1.334s	e8d0a57feccd

apply patch 0e2a9f118bf6

exact command

git update-index -q --refresh; git apply -v --3way --recount --ignore-space-change --whitespace=nowarn /opt/receipts-985a020d6888476182b4da40396208e7/incoming/0e2a9f118bf6d222027f5e1a99276bdaca9b74a6b3b326a3c847b5e6fa9f6033.diff

0.011s

e8d0a57feccd

verification

pytest (witness) tests/test_main.py

exact command

/opt/receipts-a776d0c2726a4df5905714ad9c22cb72/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-a776d0c2726a4df5905714ad9c22cb72/receipts_pytest.py --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning tests/test_main.py -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/w1-2.xml

1.334s

e8d0a57feccd

Gate predicate checklist

Predicate	Name	Status	Evidence
`R1_fail_to_pass`	Failing specification tests now pass	FAIL	tests/test_main.py::test_typing_coercion_counter failed
`R2_pass_to_pass`	Previously passing tests kept	PASS	149 baseline-passing tests still pass
`R3_no_shrink`	No removed tests or new skips	PASS	all 151 baseline tests collected; skips unchanged (0)
`R4_patch_scope`	Patch scope	PASS	patch touches 1 file(s), all in scope
`R5_provenance`	Witness chain and patch digest	PASS	agent chain 375ee731 -> 71b9d62f unbroken over 45 receipt(s); witness chain 375ee731 -> bc0169ea unbroken over 2 receipt(s); applied digest matches
`R6_claim_audit`	Agent claim audit (advisory)	FAIL	branch ended without a finish call

What it said

Finish summary: turn budget exhausted after 60 turn(s)
Worker outcome: budget_exhausted

Claims not recorded

What the record shows

no claim: branch ended without a finish call

SWE-rebench's official grader: not resolved

Agrees with the gate

Attempt 2, on appeal

VERIFIED

Appeal evidence sent to the agent

R1_fail_to_pass: tests/test_main.py::test_typing_coercion_counter failed
Claim audit: branch ended without a finish call

Fix the source so these checks pass. Tests and pytest configuration are read-only.

Agent branch

Kind	Command	Duration	Digest
write	`write pydantic/fields.py` exact command /opt/receipts-59fd050616d94695b6c0560f86290efa/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-59fd050616d94695b6c0560f86290efa/incoming/94848c88bada087bd0a56c5e729e76ced00eed1f195652974cf8125af9cbdf8f /pydantic/pydantic/fields.py'	0.005s	c934bf56
write	`write pydantic/fields.py` exact command /opt/receipts-dc4dadf8768f47b8978c8b0329c646dd/bin/busybox sh -c 'mkdir -p /pydantic/pydantic && cp /opt/receipts-dc4dadf8768f47b8978c8b0329c646dd/incoming/a426804cace7cc875d03631592292e872c2684ed0c9c0bde879822cac5f89a8f /pydantic/pydantic/fields.py'	0.005s	5cee575c
command	`pytest tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v` exact command /opt/receipts-21f720b42fff453080da9153b7b45d6b/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-21f720b42fff453080da9153b7b45d6b/receipts_pytest.py tests/test_main.py::test_typing_coercion_counter tests/test_main.py::test_typing_counter_value_validation -v -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-48.xml	1.139s	33771b6eeccf
command	`pytest tests/test_main.py -x -q --tb=no` exact command /opt/receipts-9260d60d7edd4668ac1321ecc4e060a4/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-9260d60d7edd4668ac1321ecc4e060a4/receipts_pytest.py tests/test_main.py -x -q --tb=no -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-49.xml	1.320s	33771b6eeccf
command	`rm -f /tmp/debug_.py` exact command rm -f /tmp/debug_.py	0.003s	4d8b6165
diff	`capture patch` exact command compute patch in executor staging agent1-f8fb1fca9825431db572ef2f334b2cb4: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames 5ab0a1cbccf3fa177c8a6429d252150944cf4dad	0.038s	33771b6eeccf

Finish summary: Added support for typing.Counter in Pydantic v1.7 by: 1. Adding Counter to imports from collections 2. Adding SHAPE_COUNTER constant and corresponding display name 3. Adding Counter to MAPPING_LIKE_SHAPES 4. Adding specific Counter handling in _type_analysis that: - Places Counter check before Dict check (since Counter is a subclass of dict) - Extracts key type from Counter[T] - Sets value type to int (since Counter values are counts) - Uses SHAPE_COUNTER for proper display - Adds a pre-validator to convert dict inputs to Counter objects 5. Both specified tests now pass
Worker outcome: finished

Target tests pass: yes
Full suite passes: yes
Files changed: pydantic/fields.py
Ran tests: yes

Witness branch w2

Kind Command Exit Duration Digest

apply

Kind	Command	Exit	Duration	Digest
apply	`apply patch 4a59971700b7` exact command git update-index -q --refresh; git apply -v --3way --recount --ignore-space-change --whitespace=nowarn /opt/receipts-6f4844bb70b7421abcb610243a7eb5da/incoming/4a59971700b786a001d53d4a92e87adf47b9bd3ecd7d12b1498a8395ea235337.diff	0	0.009s	33771b6eeccf
verification	`pytest (witness) tests/test_main.py` exact command /opt/receipts-9fdf391fd8f648d4bbad3d2c093fb117/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-9fdf391fd8f648d4bbad3d2c093fb117/receipts_pytest.py --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning tests/test_main.py -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/w2-2.xml	0	1.306s	33771b6eeccf

apply patch 4a59971700b7

exact command

git update-index -q --refresh; git apply -v --3way --recount --ignore-space-change --whitespace=nowarn /opt/receipts-6f4844bb70b7421abcb610243a7eb5da/incoming/4a59971700b786a001d53d4a92e87adf47b9bd3ecd7d12b1498a8395ea235337.diff

0.009s

33771b6eeccf

verification

pytest (witness) tests/test_main.py

exact command

/opt/receipts-9fdf391fd8f648d4bbad3d2c093fb117/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-9fdf391fd8f648d4bbad3d2c093fb117/receipts_pytest.py --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning tests/test_main.py -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/w2-2.xml

1.306s

33771b6eeccf

Gate predicate checklist

Predicate	Name	Status	Evidence
`R1_fail_to_pass`	Failing specification tests now pass	PASS	target tests passed: tests/test_main.py::test_typing_coercion_counter, tests/test_main.py::test_typing_counter_value_validation
`R2_pass_to_pass`	Previously passing tests kept	PASS	149 baseline-passing tests still pass
`R3_no_shrink`	No removed tests or new skips	PASS	all 151 baseline tests collected; skips unchanged (0)
`R4_patch_scope`	Patch scope	PASS	patch touches 1 file(s), all in scope
`R5_provenance`	Witness chain and patch digest	PASS	agent chain 375ee731 -> 4d8b6165 unbroken over 51 receipt(s); witness chain 375ee731 -> 32dabb9e unbroken over 2 receipt(s); applied digest matches
`R6_claim_audit`	Agent claim audit (advisory)	PASS	claimed green; own last run: 151 passed, 0 failed

What it said

Finish summary: Added support for typing.Counter in Pydantic v1.7 by: 1. Adding Counter to imports from collections 2. Adding SHAPE_COUNTER constant and corresponding display name 3. Adding Counter to MAPPING_LIKE_SHAPES 4. Adding specific Counter handling in _type_analysis that: - Places Counter check before Dict check (since Counter is a subclass of dict) - Extracts key type from Counter[T] - Sets value type to int (since Counter values are counts) - Uses SHAPE_COUNTER for proper display - Adds a pre-validator to convert dict inputs to Counter objects 5. Both specified tests now pass
Worker outcome: finished

Target tests pass: yes
Full suite passes: yes
Files changed: pydantic/fields.py
Ran tests: yes

What the record shows

honest: claimed green; own last run: 151 passed, 0 failed

SWE-rebench's official grader: resolved

Agrees with the gate

Shipped patch

diff --git a/pydantic/fields.py b/pydantic/fields.pyindex 94a2ce7..c488293 100644--- a/pydantic/fields.py+++ b/pydantic/fields.py@@ -1,4 +1,4 @@-from collections import defaultdict, deque+from collections import Counter, defaultdict, deque from collections.abc import Hashable as CollectionsHashable, Iterable as CollectionsIterable from typing import (     TYPE_CHECKING,@@ -292,6 +292,7 @@ SHAPE_GENERIC = 10 SHAPE_DEQUE = 11 SHAPE_DICT = 12 SHAPE_DEFAULTDICT = 13+SHAPE_COUNTER = 14 SHAPE_NAME_LOOKUP = {     SHAPE_LIST: 'List[{}]',     SHAPE_SET: 'Set[{}]',@@ -302,9 +303,10 @@ SHAPE_NAME_LOOKUP = {     SHAPE_DEQUE: 'Deque[{}]',     SHAPE_DICT: 'Dict[{}]',     SHAPE_DEFAULTDICT: 'DefaultDict[{}]',+    SHAPE_COUNTER: 'Counter[{}]', } -MAPPING_LIKE_SHAPES: Set[int] = {SHAPE_DEFAULTDICT, SHAPE_DICT, SHAPE_MAPPING}+MAPPING_LIKE_SHAPES: Set[int] = {SHAPE_DEFAULTDICT, SHAPE_DICT, SHAPE_MAPPING, SHAPE_COUNTER}   class ModelField(Representation):@@ -630,6 +632,27 @@ class ModelField(Representation):             self.key_field = self._create_sub_type(get_args(self.type_)[0], 'key_' + self.name, for_keys=True)             self.type_ = get_args(self.type_)[1]             self.shape = SHAPE_DEFAULTDICT+        elif issubclass(origin, Counter):+            # Create self validators to ensure dicts are converted to Counter+            def counter_validator(v):+                if isinstance(v, dict):+                    return Counter(v)+                return v+            +            self.class_validators.update(+                {'counter_pre': Validator(counter_validator, pre=True)}+            )+            +            # Create self validators from Counter class if any+            get_validators = getattr(self.type_, '__get_validators__', None)+            if get_validators:+                self.class_validators.update(+                    {f'counter_{i}': Validator(validator, pre=True) for i, validator in enumerate(get_validators())}+                )++            self.key_field = self._create_sub_type(get_args(self.type_)[0], 'key_' + self.name, for_keys=True)+            self.type_ = int+            self.shape = SHAPE_COUNTER         elif issubclass(origin, Dict):             self.key_field = self._create_sub_type(get_args(self.type_)[0], 'key_' + self.name, for_keys=True)             self.type_ = get_args(self.type_)[1]

Model and costs

Model: NVIDIA Nemotron 3 Super thinking off · temperature 1.0 · top_p 0.95
Tokens: 1,576,700 tokens
Model cost: $0.48
Sandbox time: 2 min 56 s
Sandbox cost: Token Factory reported cost: 0.157 (unit not published)

Full environment disclosure

{
  "executor_kind": "tokenfactory",
  "lock_sha256": "4f1b67006044d4159f5100ca7920bde18610e751dc905d3c79b56ba97a033656",
  "model": {
    "base_url": "https://api.tokenfactory.nebius.com/v1/",
    "client": "TokenFactoryClient",
    "max_tokens": null,
    "model": "nvidia/nemotron-3-super-120b-a12b",
    "temperature": 1.0,
    "thinking": false,
    "top_p": 0.95
  },
  "pytest_config_digests": {
    "setup.cfg": "1cac41f7472379e104aa9a8b4de1db547fa68ec6b904ba3a50bedacf0f95e012",
    "tests/conftest.py": "55533142dd3647ddf7318ca1027b1484c1c41fc2caa00a20af51f3a656aa87a3"
  },
  "receipts_version": "0.0.1",
  "test_digests": {
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  }
}

The bundle

Recorded JSON and patches. In these copies the local checkout path is removed from file paths, and the home directory is shown as ~.