Somehow I had indented with 5 spaces everywhere.

specs/core/0_fork-choice.md

@@ -164,7 +164,7 @@ def on_attestation(store: Store, attestation: Attestation) -> None:
     for i in indexed_attestation.custody_bit_0_indices + indexed_attestation.custody_bit_1_indices:
         if i not in store.latest_targets or attestation.data.target_epoch > store.latest_targets[i].epoch:
             store.latest_targets[i] = Target(
-                epoch = attestation.data.target_epoch,
-                root = attestation.data.target_root,
+                epoch=attestation.data.target_epoch,
+                root=attestation.data.target_root,
             )
 ```

test_libs/pyspec/eth2spec/test/test_fork_choice.py

@@ -12,57 +12,57 @@ from eth2spec.test.helpers.state import next_slot
 @with_all_phases
 @spec_state_test
 def test_basic(spec, state):
-     state.latest_block_header = spec.BeaconBlockHeader(body_root=hash_tree_root(spec.BeaconBlockBody()))
-     yield 'pre', state
+    state.latest_block_header = spec.BeaconBlockHeader(body_root=hash_tree_root(spec.BeaconBlockBody()))
+    yield 'pre', state
 
     # Initialization
-     store = spec.get_genesis_store(state)
-     blocks = []
-     time = 100
-     spec.on_tick(store, time)
-     assert store.time == time
+    store = spec.get_genesis_store(state)
+    blocks = []
+    time = 100
+    spec.on_tick(store, time)
+    assert store.time == time
 
-     # On receiving a block of `GENESIS_SLOT + 1` slot
-     block = build_empty_block_for_next_slot(spec, state)
-     blocks.append(block)
-     spec.on_block(store, block)
-     assert store.blocks[signing_root(block)] == block
+    # On receiving a block of `GENESIS_SLOT + 1` slot
+    block = build_empty_block_for_next_slot(spec, state)
+    blocks.append(block)
+    spec.on_block(store, block)
+    assert store.blocks[signing_root(block)] == block
 
-     # On receiving a block of next epoch
-     store.time = time + spec.SECONDS_PER_SLOT * spec.SLOTS_PER_EPOCH
-     block = build_empty_block_for_next_slot(spec, state)
-     block.slot += spec.SLOTS_PER_EPOCH
-     blocks.append(block)
+    # On receiving a block of next epoch
+    store.time = time + spec.SECONDS_PER_SLOT * spec.SLOTS_PER_EPOCH
+    block = build_empty_block_for_next_slot(spec, state)
+    block.slot += spec.SLOTS_PER_EPOCH
+    blocks.append(block)
 
-     spec.on_block(store, block)
-     assert store.blocks[signing_root(block)] == block
-     yield 'blocks', blocks, List[spec.BeaconBlock]
+    spec.on_block(store, block)
+    assert store.blocks[signing_root(block)] == block
+    yield 'blocks', blocks, List[spec.BeaconBlock]
 
-     # TODO: add tests for justified_root and finalized_root
-     yield 'post', state
+    # TODO: add tests for justified_root and finalized_root
+    yield 'post', state
 
 
 @with_all_phases
 @spec_state_test
 def test_on_attestation(spec, state):
-     yield 'pre', state
+    yield 'pre', state
 
-     store = spec.get_genesis_store(state)
-     time = 100
-     spec.on_tick(store, time)
+    store = spec.get_genesis_store(state)
+    time = 100
+    spec.on_tick(store, time)
 
-     next_slot(spec, state)
+    next_slot(spec, state)
 
-     attestation = get_valid_attestation(spec, state, slot=1)
-     yield 'attestation', attestation
-     indexed_attestation = spec.convert_to_indexed(state, attestation)
-     spec.on_attestation(store, attestation)
-     assert (
-         store.latest_targets[indexed_attestation.custody_bit_0_indices[0]] ==
-         spec.Target(
-              epoch = attestation.data.target_epoch,
-              root = attestation.data.target_root,
-          )
-     )
+    attestation = get_valid_attestation(spec, state, slot=1)
+    yield 'attestation', attestation
+    indexed_attestation = spec.convert_to_indexed(state, attestation)
+    spec.on_attestation(store, attestation)
+    assert (
+        store.latest_targets[indexed_attestation.custody_bit_0_indices[0]] ==
+        spec.Target(
+            epoch=attestation.data.target_epoch,
+            root=attestation.data.target_root,
+        )
+    )
 
-     yield 'post', state
+    yield 'post', state

test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py

@@ -131,7 +131,7 @@ class Container(object):
     def get_field_values(self):
         cls = self.__class__
         return [getattr(self, field) for field in cls.get_field_names()]
-    
+
     def copy(self):
         return copy.deepcopy(self)