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Date: Thu, 16 Feb 2012 23:31:54 +0000
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Subject: Re: Undoing character read from file
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:20528

On 16/02/2012 23:10, Emeka wrote:
> Hello All,
>
> I know about seek and tell while using readline. What about if I am
> using read, and I want to undo the last character I just read(to return
> it back to the stream). How do I achieve this?
>
Try:

     f.seek(-1, 1)

It seeks -1 relative to the current position (the second argument
defaults to 0 for relative to start of file).