[Fix] Allow unstake below network min

bittensor/extrinsics/registration.py

@@ -461,6 +461,8 @@ def run_faucet_extrinsic(
                 if attempts == max_allowed_attempts:
                     raise MaxAttemptsException
                 attempts += 1
+                # Wait a bit before trying again
+                time.sleep(1)
 
             # Successful registration
             else:
@@ -472,6 +474,8 @@ def run_faucet_extrinsic(
 
                 if successes == 3:
                     raise MaxSuccessException
+
+                attempts = 1  # Reset attempts on success
                 successes += 1
 
         except KeyboardInterrupt:

bittensor/extrinsics/staking.py

@@ -19,10 +19,34 @@
 import bittensor
 from rich.prompt import Confirm
 from time import sleep
-from typing import List, Union, Optional
+from typing import List, Union, Optional, Tuple
 from bittensor.utils.balance import Balance
 
 
+def _check_threshold_amount(
+    subtensor: "bittensor.subtensor", stake_balance: Balance
+) -> Tuple[bool, Balance]:
+    """
+    Checks if the new stake balance will be above the minimum required stake threshold.
+
+    Args:
+        stake_balance (Balance):
+            the balance to check for threshold limits.
+
+    Returns:
+        success, threshold (bool, Balance):
+            ``true`` if the staking balance is above the threshold, or ``false`` if the
+                staking balance is below the threshold.
+            The threshold balance required to stake.
+    """
+    min_req_stake: Balance = subtensor.get_minimum_required_stake()
+
+    if min_req_stake > stake_balance:
+        return False, min_req_stake
+    else:
+        return True, min_req_stake
+
+
 def add_stake_extrinsic(
     subtensor: "bittensor.subtensor",
     wallet: "bittensor.wallet",
@@ -91,6 +115,9 @@ def add_stake_extrinsic(
             coldkey_ss58=wallet.coldkeypub.ss58_address, hotkey_ss58=hotkey_ss58
         )
 
+        # Grab the existential deposit.
+        existential_deposit = subtensor.get_existential_deposit()
+
     # Convert to bittensor.Balance
     if amount is None:
         # Stake it all.
@@ -100,9 +127,10 @@ def add_stake_extrinsic(
     else:
         staking_balance = amount
 
-    # Remove existential balance to keep key alive.
-    if staking_balance > bittensor.Balance.from_rao(1000):
-        staking_balance = staking_balance - bittensor.Balance.from_rao(1000)
+    # Leave existential balance to keep key alive.
+    if staking_balance > old_balance - existential_deposit:
+        # If we are staking all, we need to leave at least the existential deposit.
+        staking_balance = old_balance - existential_deposit
     else:
         staking_balance = staking_balance
 
@@ -115,6 +143,18 @@ def add_stake_extrinsic(
         )
         return False
 
+    # If nominating, we need to check if the new stake balance will be above the minimum required stake threshold.
+    if not own_hotkey:
+        new_stake_balance = old_stake + staking_balance
+        is_above_threshold, threshold = _check_threshold_amount(
+            subtensor, new_stake_balance
+        )
+        if not is_above_threshold:
+            bittensor.__console__.print(
+                f":cross_mark: [red]New stake balance of {new_stake_balance} is below the minimum required nomination stake threshold {threshold}.[/red]"
+            )
+            return False
+
     # Ask before moving on.
     if prompt:
         if not own_hotkey:
@@ -167,7 +207,7 @@ def add_stake_extrinsic(
                 block = subtensor.get_current_block()
                 new_stake = subtensor.get_stake_for_coldkey_and_hotkey(
                     coldkey_ss58=wallet.coldkeypub.ss58_address,
-                    hotkey_ss58=wallet.hotkey.ss58_address,
+                    hotkey_ss58=hotkey_ss58,
                     block=block,
                 )  # Get current stake
 

bittensor/extrinsics/unstaking.py

@@ -72,13 +72,13 @@ def __do_remove_stake_single(
 
 
 def check_threshold_amount(
-    subtensor: "bittensor.subtensor", unstaking_balance: Balance
+    subtensor: "bittensor.subtensor", stake_balance: Balance
 ) -> bool:
     """
-    Checks if the unstaking amount is above the threshold or 0
+    Checks if the remaining stake balance is above the minimum required stake threshold.
 
     Args:
-        unstaking_balance (Balance):
+        stake_balance (Balance):
             the balance to check for threshold limits.
 
     Returns:
@@ -88,9 +88,9 @@ def check_threshold_amount(
     """
     min_req_stake: Balance = subtensor.get_minimum_required_stake()
 
-    if min_req_stake > unstaking_balance > 0:
+    if min_req_stake > stake_balance > 0:
         bittensor.__console__.print(
-            f":cross_mark: [red]Unstaking balance of {unstaking_balance} less than minimum of {min_req_stake} TAO[/red]"
+            f":cross_mark: [yellow]Remaining stake balance of {stake_balance} less than minimum of {min_req_stake} TAO[/yellow]"
         )
         return False
     else:
@@ -141,6 +141,9 @@ def unstake_extrinsic(
             coldkey_ss58=wallet.coldkeypub.ss58_address, hotkey_ss58=hotkey_ss58
         )
 
+        hotkey_owner = subtensor.get_hotkey_owner(hotkey_ss58)
+        own_hotkey: bool = wallet.coldkeypub.ss58_address == hotkey_owner
+
     # Convert to bittensor.Balance
     if amount is None:
         # Unstake it all.
@@ -160,10 +163,14 @@ def unstake_extrinsic(
         )
         return False
 
-    if not check_threshold_amount(
-        subtensor=subtensor, unstaking_balance=unstaking_balance
+    # If nomination stake, check threshold.
+    if not own_hotkey and not check_threshold_amount(
+        subtensor=subtensor, stake_balance=(stake_on_uid - unstaking_balance)
     ):
-        return False
+        bittensor.__console__.print(
+            f":warning: [yellow]This action will unstake the entire staked balance![/yellow]"
+        )
+        unstaking_balance = stake_on_uid
 
     # Ask before moving on.
     if prompt:
@@ -300,6 +307,7 @@ def unstake_multiple_extrinsic(
     wallet.coldkey
 
     old_stakes = []
+    own_hotkeys = []
     with bittensor.__console__.status(
         ":satellite: Syncing with chain: [white]{}[/white] ...".format(
             subtensor.network
@@ -313,9 +321,12 @@ def unstake_multiple_extrinsic(
             )  # Get stake on hotkey.
             old_stakes.append(old_stake)  # None if not registered.
 
+            hotkey_owner = subtensor.get_hotkey_owner(hotkey_ss58)
+            own_hotkeys.append(wallet.coldkeypub.ss58_address == hotkey_owner)
+
     successful_unstakes = 0
-    for idx, (hotkey_ss58, amount, old_stake) in enumerate(
-        zip(hotkey_ss58s, amounts, old_stakes)
+    for idx, (hotkey_ss58, amount, old_stake, own_hotkey) in enumerate(
+        zip(hotkey_ss58s, amounts, old_stakes, own_hotkeys)
     ):
         # Covert to bittensor.Balance
         if amount is None:
@@ -336,10 +347,14 @@ def unstake_multiple_extrinsic(
             )
             continue
 
-        if not check_threshold_amount(
-            subtensor=subtensor, unstaking_balance=unstaking_balance
+        # If nomination stake, check threshold.
+        if not own_hotkey and not check_threshold_amount(
+            subtensor=subtensor, stake_balance=(stake_on_uid - unstaking_balance)
         ):
-            return False
+            bittensor.__console__.print(
+                f":warning: [yellow]This action will unstake the entire staked balance![/yellow]"
+            )
+            unstaking_balance = stake_on_uid
 
         # Ask before moving on.
         if prompt:

tests/e2e_tests/multistep/test_dendrite.py

@@ -90,7 +90,7 @@ async def test_dendrite(local_chain):
     metagraph = bittensor.metagraph(netuid=1, network="ws://localhost:9945")
     neuron = metagraph.neurons[0]
     # assert stake is 10000
-    assert neuron.stake.tao == 9999.999999
+    assert neuron.stake.tao == 10_000.0
 
     # assert neuron is not validator
     assert neuron.active is True

tests/e2e_tests/multistep/test_incentive.py

@@ -252,7 +252,7 @@ async def validator_write_output(stream):
     alice_neuron = metagraph.neurons[0]
     assert alice_neuron.validator_permit is False
     assert alice_neuron.dividends == 0
-    assert alice_neuron.stake.tao == 9999.999999
+    assert alice_neuron.stake.tao == 10_000.0
     assert alice_neuron.validator_trust == 0
 
     # wait until 360 blocks pass (subnet tempo)
@@ -287,7 +287,7 @@ async def validator_write_output(stream):
     alice_neuron = metagraph.neurons[0]
     assert alice_neuron.validator_permit is True
     assert alice_neuron.dividends == 1
-    assert alice_neuron.stake.tao == 9999.999999
+    assert alice_neuron.stake.tao == 10_000.0
     assert alice_neuron.validator_trust == 1
 
 

tests/e2e_tests/subcommands/weights/test_commit_weights.py

@@ -61,7 +61,7 @@ def test_commit_and_reveal_weights(local_chain):
             "--wallet.path",
             "/tmp/btcli-wallet2",
             "--amount",
-            "999998998",
+            "100000",
         ],
     )