tail -f en Python

Hello La communauté,

Voici une application très concrète des
générateurs en Python

[code]

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

logfile = open("access-log")
loglines = follow(logfile)
for line in loglines:
    print line,

[/code]

Source : http://www.dabeaz.com/generators/Generators.pdf



Cordialement

Salvatore