On Thu, 10 Aug 2006 17:28:59 -0700
Simon Forman <[EMAIL PROTECTED]> wrote:
#> There is a better way to check for exhausted StringIO (Note that
#> "input" is a python built-in and should not be used for a variable
#> name):
Right, thanks for pointing it out.
#> import StringIO
#> s = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
#> size = 10 # 100
#> S = StringIO.StringIO(s)
#>
#> data = S.read(size)
#> while data:
#> print data + "?\n",
#> data = S.read(size)
It may be only my personal opinion, but duplicating data = S.read(size)
line doesn't strike me as particularly better.
#> However, it's considered more "pythonic" to do it like so (also uses a
#> StringIO as an output "file" to show how print can print to a file-like
#> object):
#>
#> import StringIO
#>
#> s = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
#> size = 10 # 100
#>
#> S = StringIO.StringIO(s)
#> out = StringIO.StringIO()# stand-in for a real file.
#>
#> while True:
#> data = S.read(size)
#> if not data:
#> break
#> print >> out, data + "?\n",
#>
#> print out.getvalue()
This looks slightly nicer, but still, I wish there was some kind of
StringIO.isEOF() to put in while condition.
Don't take me wrong, I love "while True" stuff, but sometimes having
an actual test there can be nice :)
--
Best wishes,
Slawomir Nowaczyk
( [EMAIL PROTECTED] )
Beware of bugs in the above code; I have only proved it correct,
not tried it.
--
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