Find the shard_number based on the key

shard_finder.py

import hashlib

# Get user input
key = input("Enter key: ")
num_shards = int(input("Enter number of shard databases: "))

# Hash the key
hashed_key = hashlib.sha256(key.encode()).hexdigest()

# Convert the hash to an integer
hashed_int = int(hashed_key, 16)

# Determine the shard number
shard_number = hashed_int % num_shards

# Print the shard number and the hash key
print(f"The key '{key}' with hash '{hashed_key}' goes to shard {shard_number}")