I noticed that if a file is being continuously written to, the file
generator does not notice it:
def getLines(f):
lines = []
for line in f:
lines.append(line)
return lines
with open('/var/log/syslog', 'rb') as f:
lines = getLines(f)
# do some processing with lines
# /var/log/syslog gets updated in the mean time
# always returns an empty list, even though f has more data
lines = getLines(f)
I found a workaround by adding f.seek(0,1) directly before the last
getLines() call, but is this the expected behavior? Calling f.tell()
right after the first getLines() call shows that it isn't reset back to
0. Is this correct or a bug?
--
Bill
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