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Added deduplication

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This commit is contained in:
vbuterin
2019-02-10 00:09:34 -06:00
committed by GitHub
parent 65c5a1a1b7
commit 8097b2373b
1 changed files with 5 additions and 3 deletions
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8
specs/core/1_shard-data-chains.md
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@@ -77,11 +77,13 @@ def get_persistent_commmitee(state: BeaconState,
bytes_to_int(hash(earlier_seed + bytes3(index))[0:8]) %
PERSISTENT_COMMITTEE_PERIOD
)
return (
# Take not-yet-cycled-out validators from earlier committee and already-cycled-in validators from
# later committee; return a sorted list of the union of the two, deduplicated
return sorted(list(set(
[i for i in earlier_committee if epoch % PERSISTENT_COMMITTEE_PERIOD < get_switchover_epoch(i)] +
[i for i in later_committee if epoch % PERSISTENT_COMMITTEE_PERIOD >= get_switchover_epoch(i)]
)
)))
```
## Data Structures