Oops: difference in operation of string.join and ''.join

[Skip Montanaro]

    >>> ''.join([x+y for x, y in zip('test', 'dust')])
    'tdeusstt'
    >>> import string
    >>> string.join([x+y for x, y in zip('test', 'dust')])
    'td eu ss tt'

    John> What is this?

The default separator for string.join is a single space.  Use

    string.join([x+y for x, y in zip('test', 'dust')], '')

instead.

-- 
Skip Montanaro (skip at pobox.com)
http://www.mojam.com/
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