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how to read a continuously updable file

how to read a continuously updable file

how to read a continuously updable file

By pressing a button i have to read a file which is dynamic file,,and displaying the file to user in a text box..If again user press the same button he has get the same out put..

RE: how to read a continuously updable file


See the file.tell() and file.seek() methods :


def readnext(filename,lastseen=0):
  with open(filename) as fil:

    for line in fil:
      print line.rstrip()

    return fil.tell()
Then store the position in a variable and pass it back when calling the next time : last=readnext('whatever',last) .

( This implementation is just a generic example. Rewrite it to fit your context. )


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