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#!/usr/bin/env python3
import os
import glob
def merge_files(parts_dir, output_file, base_filename):
pattern = os.path.join(parts_dir, f"{base_filename}.part*")
parts = sorted(glob.glob(pattern))
if not parts:
print("No files found")
return
print(f"found {len(parts)} files, merge to {output_file} ...")
with open(output_file, 'wb') as outfile:
for part in parts:
print(f"Merging: {part} ...")
with open(part, 'rb') as infile:
while True:
data = infile.read(1024 * 1024)
if not data:
break
outfile.write(data)
print(f"Merged: {output_file}")
if __name__ == '__main__':
parts_dir = "data/BIOSCAN_1M/split_data/splitted_files"
base_filename = "BioScan_data_in_splits.hdf5"
output_file = "data/BIOSCAN_1M/split_data/BioScan_data_in_splits.hdf5"
merge_files(parts_dir, output_file, base_filename)
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