ARCHIVED TRAINING / sealor/junkie

sealor__junkie-4

This is a preserved training example. Membership in the current training wave has not been verified.

Problem statement

Support default arguments
How to reproduce:

```
from junkie import Context

class Foo:
    def __init__(self, bar=None):
        self.bar = bar

context = Context({
    "foo": Foo
})

with context.build(Foo) as foo:
    pass
```

Current behaviour: `Exception: Not found: bar`

Expected behaviour: Since `bar` has a default value, one would expect using that default value if not found in the context.

## Hints:
sealor: @Rollmops 
Thank you for your PR. Nice feature!

Does this implementation also work for factories where some default arguments are used and others not?
Could you please provide a test for this situation?
Rollmops: Good point! Should be resolved now.
sealor: I've squashed all commits into one and made some small improvements.
Are you fine with that?
Rollmops: Accepted 😄

Training membership

opd_e4b_pure_v7 opd_e4b_pure_v7b

Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.

Task and snapshot provenance

Snapshot captured 2026-11-12T17:06:59.476467+00:00 · Autoresearch-Arena/gemma-4-developer-agent

{
  "datasets": [
    "opd_e4b_pure_v7",
    "opd_e4b_pure_v7b"
  ],
  "examples": 11,
  "instance_id": "sealor__junkie-4",
  "problem_statement": "Support default arguments\nHow to reproduce:\r\n\r\n```\r\nfrom junkie import Context\r\n\r\nclass Foo:\r\n    def __init__(self, bar=None):\r\n        self.bar = bar\r\n\r\ncontext = Context({\r\n    \"foo\": Foo\r\n})\r\n\r\nwith context.build(Foo) as foo:\r\n    pass\r\n```\r\n\r\nCurrent behaviour: `Exception: Not found: bar`\r\n\r\nExpected behaviour: Since `bar` has a default value, one would expect using that default value if not found in the context.\n\n## Hints:\nsealor: @Rollmops \r\nThank you for your PR. Nice feature!\r\n\r\nDoes this implementation also work for factories where some default arguments are used and others not?\r\nCould you please provide a test for this situation?\nRollmops: Good point! Should be resolved now.\nsealor: I've squashed all commits into one and made some small improvements.\r\nAre you fine with that?\nRollmops: Accepted 😄",
  "repo": "sealor/junkie",
  "source": "v2/experiments/train_data/opd_e4b_pure_v7/verified_rft_messages.jsonl",
  "source_sha256": "e37f7bd675322f3f81500b73559d60d5f602ca0537bf19f5cb06332c728c7b72"
}

{
  "captured_at": "2026-11-12T17:06:59.476467+00:00",
  "membership": "archived training",
  "membership_evidence": "Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.",
  "name": "Preserved post-training task archive",
  "source": "Autoresearch-Arena/gemma-4-developer-agent",
  "source_revision": "016496de222aaafca0d4ee4c18efc63ba616f76e",
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}