[Tutor] file I/O

[Roman Suzi]

On Wed, 11 Jul 2001, Michael P. Reilly wrote:

>Massey, Craig wrote
>>
>
>But readline simplifies this as I said above.  Just using
>f.readline()[:-1] is good enough.

No, it is not. Last line of a file could contain no
"\n". Why not to write chomp?

def chomp(s):
  if s[-1:] == "\n":
    return s[:-1]
  else:
    return s

Or, another way:

>>> def chomp1(s):
...   return s[-1:] != "\n" and s or s[:-1]
...
>>> chomp1("")
''
>>> chomp1("1")
'1'
>>> chomp1("12")
'12'
>>> chomp1("12\n")
'12'
>>> chomp1("12\n\n")
'12\012'
>


Sincerely yours, Roman Suzi
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