# set-perpetual-lock (/docs/tx/set-perpetual-lock)

Switches how the signing coldkey's stake lock on the subnet behaves over
time: perpetual mode keeps the lock (and its conviction) in force
indefinitely, while decaying mode lets it wind down over time so the
stake eventually becomes liquid again. A per-coldkey, per-subnet setting
that moves no funds by itself — it changes the behavior of locks created
with `lock_stake`. Enabling perpetual mode means the locked stake stays
illiquid until you switch back to decaying and the lock runs off.

| Signer    | Pallet          | Wraps                                |
| --------- | --------------- | ------------------------------------ |
| `coldkey` | SubtensorModule | `SubtensorModule.set_perpetual_lock` |

## Parameters [#parameters]

| Parameter | Type    | Required | Description                                                           |
| --------- | ------- | -------- | --------------------------------------------------------------------- |
| `netuid`  | integer | yes      | Subnet whose lock mode is changed.                                    |
| `enabled` | boolean | yes      | True for perpetual mode (lock never decays), false for decaying mode. |

Address parameters (`--hotkey`, `--coldkey`, `--dest`, ...) accept a raw ss58
address, an address-book or proxy-book name, or a local wallet/hotkey name.

## CLI [#cli]

Preview with `--dry-run` (shows fee, effects, and policy result without
submitting), then submit:

```bash
btcli tx set-perpetual-lock \
  --netuid <int> \
  --enabled <true|false> --dry-run
btcli tx set-perpetual-lock \
  --netuid <int> \
  --enabled <true|false> -w my_coldkey
```

## Python [#python]

```python
import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.SetPerpetualLock(netuid=1, enabled=True)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)
```

Or build it by op name, as an agent would:

```python
await client.execute_tool("set_perpetual_lock", {...}, wallet)
```