Datasets:
File size: 1,670 Bytes
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import json
import os
def read_dataset(file_path):
try:
with open(file_path, 'r') as file:
data = [json.loads(line) for line in file]
print(f"Dataset loaded successfully from {file_path}.")
return data
except Exception as e:
print(f"Error reading dataset from {file_path}: {e}")
return []
def shard_dataset(dataset, num_shards):
shard_size = len(dataset) // num_shards
shards = [dataset[i:i + shard_size] for i in range(0, len(dataset), shard_size)]
if len(shards) > num_shards:
shards[num_shards - 1].extend(shards.pop())
print(f"Dataset sharded into {num_shards} parts.")
return shards
def write_shards(shards, output_dir):
if not os.path.exists(output_dir):
os.makedirs(output_dir)
print(f"Created output directory at {output_dir}.")
for i, shard in enumerate(shards):
shard_file = os.path.join(output_dir, f'shard_{i+1}.jsonl')
with open(shard_file, 'w') as file:
for item in shard:
json.dump(item, file)
file.write('\n')
print(f"Shard {i+1} written to {shard_file}.")
def main():
input_file = 'path_to_processed_dataset.jsonl' # Update with your processed dataset file path
output_dir = 'sharded_dataset' # Update with your output directory for shards
num_shards = 33
dataset = read_dataset(input_file)
if dataset:
shards = shard_dataset(dataset, num_shards)
write_shards(shards, output_dir)
print("All shards have been successfully written.")
else:
print("No dataset to process.")
if __name__ == "__main__":
main()
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