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import json
def process_jsonl():
"""
Process the jsonl file: starting from line 1, extract the first 10 lines from every 100-line block,
process a total of 10,000 lines, and extract 1,000 lines in total
"""
# Define input and output file paths
input_file = 'positive_original.jsonl'
output_file = 'positive.jsonl'
with open(input_file, 'r', encoding='utf-8') as infile, \
open(output_file, 'w', encoding='utf-8') as outfile:
# Initialize counters
line_count = 0
extracted_count = 0
# Read the first 10,000 lines
while line_count < 10000:
line = infile.readline()
if not line: # End of file
break
line_count += 1
# Calculate which 100-line block the current line belongs to
block_number = (line_count - 1) // 100
# Calculate the position of the current line within its block
position_in_block = (line_count - 1) % 100
# If the line is among the first 10 lines in the block, write it to the output file
if position_in_block < 10:
outfile.write(line)
extracted_count += 1
print(f"Processing completed! A total of {line_count} lines were read, and {extracted_count} lines were extracted.")
print(f"Extracted data has been saved to {output_file}")
if __name__ == "__main__":
process_jsonl() |