import logging

import datetime

def sort_log_records(log_records, version):

"""

Sorts log records based on timestamp.

Args:

log_records (list): A list of log records. Each record should be a dictionary

with a 'timestamp' key (datetime object) and other data.

version (int): Version number of the log format. Used for compatibility.

Returns:

list: A sorted list of log records.

"""

if version < 1:

# Older versions might not have timestamps as datetime objects.

# Assume timestamp is a string in a recognizable format.

def get_timestamp(record):

if 'timestamp' in record:

try:

return datetime.datetime.strptime(record['timestamp'], '%Y-%m-%d %H:%M:%S') # Example format

except (ValueError, TypeError):

return datetime.datetime.min # Handle invalid timestamps

return datetime.datetime.min

return sorted(log_records, key=get_timestamp)

else:

# Newer versions have datetime objects for timestamps.

return sorted(log_records, key=lambda record: record['timestamp'])

if __name__ == '__main__':

# Example usage:

log_data = [

{'timestamp': datetime.datetime(2024, 1, 20, 10, 0, 0), 'message': 'Event 1'},

{'timestamp': datetime.datetime(2024, 1, 20, 8, 0, 0), 'message': 'Event 2'},

{'timestamp': datetime.datetime(2024, 1, 20, 12, 0, 0), 'message': 'Event 3'}

]

# Sort for version 1 (older format)

sorted_logs_v1 = sort_log_records(log_data, 1)

print("Sorted Logs (Version 1):")

for log in sorted_logs_v1:

print(log)

# Sort for version 2 (newer format)

sorted_logs_v2 = sort_log_records(log_data, 2)

print("\nSorted Logs (Version 2):")

for log in sorted_logs_v2:

print(log)