Which is more Pythonic? (was: Detecting Binary content in files)
John Posner
jjposner at snet.net
Wed Apr 1 13:44:01 EDT 2009
>> > mrkrs_alt2 = filter(lambda b: b > 127 or b in list("\r\n\t"),
block)
>> >
>>
>> Never tested my 'pythonicity', but I would do:
>>
>> def test(b) : b > 127 or b in r"\r\n\t"
Oops! Clearly,
b in "\r\n\t"
.... is preferable to ...
b in list("\r\n\t")
You do *not* want to use a raw string here:
>>> len ("\n\r\t")
3
>>> len (r"\n\r\t")
6
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