Combine the split files into a single file named 'ILtrain2.db.gz'
import gzip
import os
import shutil
def combine_files(input_prefix, num_parts, output_file):
with gzip.open(output_file, 'wb') as f_out:
for i in range(1, num_parts + 1):
part_file = f"{input_prefix}_part{i}.gz"
with gzip.open(part_file, 'rb') as f_in:
shutil.copyfileobj(f_in, f_out)
os.remove(part_file)
combine_files('ILtrain2', 5, 'ILtrain2.db.gz')