Prompt Title: Following Rotated Logfiles.

When you are following a log file in Python code and the log file rotates, you need to make sure that your code continues to follow the new log file after it rotates. Here's how you can do it:

1. Import the necessary modules:

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import os
import time

2. Get the file path of the log file and the initial file size:

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log_file_path = '/path/to/log/file.log'
initial_file_size = os.path.getsize(log_file_path)

3. Open the log file and start reading from the end:

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with open(log_file_path, 'rb') as file:
    file.seek(initial_file_size)
    while True:
        line = file.readline()
        if not line:
            time.sleep(0.1)
            continue
        print(line)

4. Check the file size periodically and reopen the file if it has been rotated:

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    current_file_size = os.path.getsize(log_file_path)
    if current_file_size < initial_file_size:
        file.close()
        file = open(log_file_path, 'rb')
        initial_file_size = 0

This code will continuously follow the log file even after it has been rotated. Note that you may need to modify the code depending on the log file format and rotation mechanism being used.