Python: seek: Change file object position

‘seek(n)’ is used to go to the nth byte in the file.

seek(offset, from_what)

The position is computed from adding offset to a reference point; the reference point is selected by the from_what argument. A from_what value of 0 measures from the beginning of the file, 1 uses the current file position, and 2 uses the end of the file as the reference point. from_what can be omitted and defaults to 0, using the beginning of the file as the reference point.

>>> f = open('/Users/harikrishna_gurram/abc.txt', 'rb+')
>>> f.write(b'0123456789abcdef')
16
>>> f.read(1)
b''
>>> f.seek(8)
8
>>> f.read(1)
b'8'

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