tail

[Marco Sulla]

Ok, I suppose \n and \r are enough:

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readline(size=- 1, /)

Read and return one line from the stream. If size is specified, at
most size bytes will be read.

The line terminator is always b'\n' for binary files; for text files,
the newline argument to open() can be used to select the line
terminator(s) recognized.
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open(file, mode='r', buffering=- 1, encoding=None, errors=None,
newline=None, closefd=True, opener=None)
[...]
newline controls how universal newlines mode works (it only applies to
text mode). It can be None, '', '\n', '\r', and '\r\n'
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