Read from a log file as it’s being written using python

by

Take a look at this PDF starting at page 38, ~slide I-77 and you’ll find all the info you need. Of course the rest of the slides are amazing, too, but those specifically deal with your issue:

import time
def follow(thefile):
    thefile.seek(0,2) # Go to the end of the file
    while True:
        line = thefile.readline()
        if not line:
            time.sleep(0.1) # Sleep briefly
            continue
        yield line

More Related Contents:

  1. Writing a list to a file with Python
  2. Get last n lines of a file, similar to tail
  3. open() gives FileNotFoundError/IOError: Errno 2 No such file or directory
  4. Writing a Python list of lists to a csv file
  5. How to open a file using the open with statement
  6. How to open a file for both reading and writing?
  7. logger configuration to log to file and print to stdout
  8. Monitoring contents of files/directories? [duplicate]
  9. Writing a list to a file with Python, with newlines
  10. using Python logger class to generate multiple logs for different log levels
  11. Python Random Access File
  12. Open files in ‘rt’ and ‘wt’ modes
  13. What is the difference between rb and r+b modes in file objects [duplicate]
  14. python write string directly to tarfile
  15. Python – How to check if a file is used by another application?
  16. how to count the total number of lines in a text file using python
  17. How to use Paramiko logging?
  18. Skip first couple of lines while reading lines in Python file
  19. What is the most efficient way to get first and last line of a text file?
  20. Do I understand os.walk right?
  21. pandas to_csv output quoting issue
  22. python close file descriptor question
  23. Elegant setup of Python logging in Django
  24. Save a large file using the Python requests library [duplicate]
  25. ValueError : I/O operation on closed file
  26. How do I wrap a string in a file in Python?
  27. How to read lines from a file in python starting from the end
  28. python exception message capturing
  29. Find all CSV files in a directory using Python
  30. Python not able to open file with non-english characters in path

Leave a Comment