[Tutor] script follows a file into zip?

[richard kappler]

I have a script that checks a file and if there are new additions to the
file, parses and sends the new additions. This log rolls over and zips at
midnight creating a new log of the same name. The problem is, when the file
rolls over, the new file seems to follow the old file the way the script is
currently written.

Current script (edited for brevity):
#######################################
from time import sleep

f1 = open('theFile.log', 'r')

f1.seek(0,2)
eof = f1.tell()

While True:
    try:
        #check file size to see if grown, set neweof
        f1.seek(0,2)
        neweof = f1.tell()
    except ValueError:
        f1 = open(rd1, 'r')
        f1.seek(0,2)
        neweof = f1.tell()

    #if the file is larger...
    if neweof > eof:
        do a bunch of stuff

        # update log.txt file size
        eof = neweof
        time.sleep(10)

    elif neweof < eof:
        # this resets eof at night when old log file zipped and new log
file started
        eof = 0
        time.sleep(10)

    elif neweof == eof:
         # file hasn't changed, do nothing
         time.sleep(10)
#############################################

The script works great all day until the logrotate at midnight. I would
expect to get the elif neweof < eof bit then, but my log shows I'm getting
elif neweof == eof for the rest of the night, which is what leads me to
believe that the script, as written, is following the zipped file, not
looking at the new file.

I have two thoughts on this, not sure which to use, or if something else
completely might be appropriate.
1. Instead of

f1 = open('theFile.log', 'r')

while True:
....

Would it make a difference if I used

with open('theFile.log', 'r') as f1:
    while True:
and so on

2. Get rid of the elif neweof == eof statement and just make it
else:
   pass

to send it back to the beginning of the loop (doesn't make sense to me, but
wanted to throw it out there).

regards, Richard
-- 

No matter where you go, there you are. - Buckaroo Banzai