ARCHIVED TRAINING / Backblaze/B2_Command_Line_Tool
backblaze__b2_command_line_tool-488
This is a preserved training example. Membership in the current training wave has not been verified.
Problem statement
b2.api.B2Api.get_bucket_by_name does not work with bucket-scoped application keys
I am using Duplicity 0.7.17 and b2 1.3.2.
duplicity is executed using
```
duplicity \
--verbosity debug \
/backup \
"b2://$B2_APP_KEY_ID:$B2_APP_KEY@$B2_BUCKET_NAME"
```
Where `$B2_APP_KEY_ID` and `$B2_APP_KEY` are URL-encoded strings which were output from a call to:
```
b2 create-key \
--bucket "$B2_BUCKET_NAME" \
"$B2_KEY_NAME" \
listFiles,readFiles,writeFiles,deleteFiles,listBuckets
```
Duplicity fails with the following traceback:
```
Traceback (innermost last):
File "/usr/local/bin/duplicity", line 1555, in <module>
with_tempdir(main)
File "/usr/local/bin/duplicity", line 1541, in with_tempdir
fn()
File "/usr/local/bin/duplicity", line 1380, in main
action = commandline.ProcessCommandLine(sys.argv[1:])
File "/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py", line 1135, in ProcessCommandLine
backup, local_pathname = set_backend(args[0], args[1])
File "/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py", line 1010, in set_backend
globals.backend = backend.get_backend(bend)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backend.py", line 223, in get_backend
obj = get_backend_object(url_string)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backend.py", line 209, in get_backend_object
return factory(pu)
File "/usr/local/lib/python2.7/dist-packages/duplicity/backends/b2backend.py", line 87, in __init__
self.bucket = self.service.get_bucket_by_name(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 222, in get_bucket_by_name
for bucket in self.list_buckets():
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 251, in list_buckets
self.check_bucket_restrictions(bucket_name)
File "/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py", line 84, in wrapper
return function(*wrapee_args, **wrapee_kwargs)
File "/usr/local/lib/python2.7/dist-packages/b2/api.py", line 375, in check_bucket_restrictions
raise RestrictedBucket(allowed_bucket_name)
RestrictedBucket: Application key is restricted to bucket: pc-backup
```
Internally<sup>[[1]](https://bazaar.launchpad.net/~duplicity-team/duplicity/0.8-series/view/head:/duplicity/backends/b2backend.py#L88)</sup>, Duplicity uses `b2.api.B2Api.get_bucket_by_name`, passing in the name of the bucket. This method calls `b2.api.B2Api.list_buckets` without passing the bucket name, so we get the permission error indicated above.
This looks related to changes in #474.
Training membership
opd_e4b_pure_v6a opd_e4b_pure_v6b 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_v6a",
"opd_e4b_pure_v6b",
"opd_e4b_pure_v7",
"opd_e4b_pure_v7b"
],
"examples": 8,
"instance_id": "backblaze__b2_command_line_tool-488",
"problem_statement": "b2.api.B2Api.get_bucket_by_name does not work with bucket-scoped application keys\nI am using Duplicity 0.7.17 and b2 1.3.2.\r\n\r\nduplicity is executed using\r\n\r\n```\r\nduplicity \\\r\n --verbosity debug \\\r\n /backup \\\r\n \"b2://$B2_APP_KEY_ID:$B2_APP_KEY@$B2_BUCKET_NAME\"\r\n```\r\n\r\nWhere `$B2_APP_KEY_ID` and `$B2_APP_KEY` are URL-encoded strings which were output from a call to:\r\n\r\n```\r\nb2 create-key \\\r\n --bucket \"$B2_BUCKET_NAME\" \\\r\n \"$B2_KEY_NAME\" \\\r\n listFiles,readFiles,writeFiles,deleteFiles,listBuckets\r\n```\r\n\r\nDuplicity fails with the following traceback:\r\n\r\n```\r\nTraceback (innermost last):\r\n File \"/usr/local/bin/duplicity\", line 1555, in <module>\r\n with_tempdir(main)\r\n File \"/usr/local/bin/duplicity\", line 1541, in with_tempdir\r\n fn()\r\n File \"/usr/local/bin/duplicity\", line 1380, in main\r\n action = commandline.ProcessCommandLine(sys.argv[1:])\r\n File \"/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py\", line 1135, in ProcessCommandLine\r\n backup, local_pathname = set_backend(args[0], args[1])\r\n File \"/usr/local/lib/python2.7/dist-packages/duplicity/commandline.py\", line 1010, in set_backend\r\n globals.backend = backend.get_backend(bend)\r\n File \"/usr/local/lib/python2.7/dist-packages/duplicity/backend.py\", line 223, in get_backend\r\n obj = get_backend_object(url_string)\r\n File \"/usr/local/lib/python2.7/dist-packages/duplicity/backend.py\", line 209, in get_backend_object\r\n return factory(pu)\r\n File \"/usr/local/lib/python2.7/dist-packages/duplicity/backends/b2backend.py\", line 87, in __init__\r\n self.bucket = self.service.get_bucket_by_name(bucket_name)\r\n File \"/usr/local/lib/python2.7/dist-packages/b2/api.py\", line 222, in get_bucket_by_name\r\n for bucket in self.list_buckets():\r\n File \"/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py\", line 84, in wrapper\r\n return function(*wrapee_args, **wrapee_kwargs)\r\n File \"/usr/local/lib/python2.7/dist-packages/b2/api.py\", line 251, in list_buckets\r\n self.check_bucket_restrictions(bucket_name)\r\n File \"/usr/local/lib/python2.7/dist-packages/logfury/v0_1/trace_call.py\", line 84, in wrapper\r\n return function(*wrapee_args, **wrapee_kwargs)\r\n File \"/usr/local/lib/python2.7/dist-packages/b2/api.py\", line 375, in check_bucket_restrictions\r\n raise RestrictedBucket(allowed_bucket_name)\r\n RestrictedBucket: Application key is restricted to bucket: pc-backup\r\n```\r\n\r\nInternally<sup>[[1]](https://bazaar.launchpad.net/~duplicity-team/duplicity/0.8-series/view/head:/duplicity/backends/b2backend.py#L88)</sup>, Duplicity uses `b2.api.B2Api.get_bucket_by_name`, passing in the name of the bucket. This method calls `b2.api.B2Api.list_buckets` without passing the bucket name, so we get the permission error indicated above.\r\n\r\nThis looks related to changes in #474.",
"repo": "Backblaze/B2_Command_Line_Tool",
"source": "v2/experiments/train_data/opd_e4b_pure_v6a/verified_rft_messages.jsonl",
"source_sha256": "f045b7ca5b3883a1e2eaee81e1c02a4a1b53dd7b7b36e98bacb2ba5823a15148"
}{
"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",
"sources": [
{
"path": "v2/experiments/train_data/opd_e4b_cispo_v5/verified_rft_messages.jsonl",
"sha256": "a43610ad0dfb6ace95375cfae09000f41afc0338cc925af870a4ade7a9b20c4c"
},
{
"path": "v2/experiments/train_data/opd_e4b_hybrid_v3/verified_rft_messages.jsonl",
"sha256": "bd326303eb127e8e5e08f03daf97bb88d79d19709d59f3f93f348bc56686a8df"
},
{
"path": "v2/experiments/train_data/opd_e4b_onpolicy_v3/verified_rft_messages.jsonl",
"sha256": "960c680e797e823a0d3a22f4b1d5ef60a72971373d703b877340b0c9126aaf68"
},
{
"path": "v2/experiments/train_data/opd_e4b_pure_v6a/verified_rft_messages.jsonl",
"sha256": "f045b7ca5b3883a1e2eaee81e1c02a4a1b53dd7b7b36e98bacb2ba5823a15148"
},
{
"path": "v2/experiments/train_data/opd_e4b_pure_v6b/verified_rft_messages.jsonl",
"sha256": "0f62460a9706eea5e1605255896f191ab00cb5706c5f1f2e1c293e9a718218dc"
},
{
"path": "v2/experiments/train_data/opd_e4b_pure_v7/verified_rft_messages.jsonl",
"sha256": "e37f7bd675322f3f81500b73559d60d5f602ca0537bf19f5cb06332c728c7b72"
},
{
"path": "v2/experiments/train_data/opd_e4b_pure_v7b/verified_rft_messages.jsonl",
"sha256": "b864bdc8695183433eef6e31cb8d33fad44ba3aded2170c1ade4ad5b2944ce23"
},
{
"path": "v2/experiments/train_data/opd_e4b_self_audit_v4/verified_rft_messages.jsonl",
"sha256": "0026023745afb8f3dc1c176dc7f7171157b4ad5a66656b524af218e8e19ceee6"
},
{
"path": "v2/experiments/train_data/rft_e4b_aligned_v2/verified_rft_messages.jsonl",
"sha256": "92a4515fee9d152b0d4c510ee3ce4caaaffe2003ba7584469f8027f174aab18c"
},
{
"path": "v2/experiments/train_data/rft_v1/verified_rft_messages.jsonl",
"sha256": "a42453ccd7ac7680b0a03865e8e7080bc8bf74c8d9d193b440c441ed46f8512b"
},
{
"path": "v2/experiments/train_data/rft_v2/verified_rft_messages.jsonl",
"sha256": "18f4b3bd7e651f83c6acab479c9475e3fa50dc652a384f309e97146983ac85ba"
}
]
}