Datasets:
Delete shard.py
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shard.py
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import json
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import os
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def read_dataset(file_path):
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try:
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with open(file_path, 'r') as file:
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data = [json.loads(line) for line in file]
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print(f"Dataset loaded successfully from {file_path}.")
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return data
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except Exception as e:
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print(f"Error reading dataset from {file_path}: {e}")
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return []
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def shard_dataset(dataset, num_shards):
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shard_size = len(dataset) // num_shards
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shards = [dataset[i:i + shard_size] for i in range(0, len(dataset), shard_size)]
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if len(shards) > num_shards:
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shards[num_shards - 1].extend(shards.pop())
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print(f"Dataset sharded into {num_shards} parts.")
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return shards
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def write_shards(shards, output_dir):
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if not os.path.exists(output_dir):
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os.makedirs(output_dir)
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print(f"Created output directory at {output_dir}.")
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for i, shard in enumerate(shards):
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shard_file = os.path.join(output_dir, f'shard_{i+1}.jsonl')
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with open(shard_file, 'w') as file:
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for item in shard:
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json.dump(item, file)
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file.write('\n')
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print(f"Shard {i+1} written to {shard_file}.")
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def main():
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input_file = 'path_to_processed_dataset.jsonl' # Update with your processed dataset file path
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output_dir = 'sharded_dataset' # Update with your output directory for shards
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num_shards = 33
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dataset = read_dataset(input_file)
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if dataset:
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shards = shard_dataset(dataset, num_shards)
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write_shards(shards, output_dir)
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print("All shards have been successfully written.")
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else:
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print("No dataset to process.")
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if __name__ == "__main__":
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main()
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