On 17/12/2010 23:08, Emile van Sebille wrote:
Does anyone else consider this a bug?
Python 2.6.2 (r262:71600, Jun 16 2009, 11:09:39)
[GCC 3.4.6 20060404 (Red Hat 3.4.6-10)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
---1---
>>> skippedords = '1,2,3,4,5'
>>> ['10%s' % ii for ii in skippedords.split(',')]
['101', '102', '103', '104', '105']
---2---
>>> skippedords = ''
>>> ['10%s' % ii for ii in skippedords.split(',')]
['10']
---3---
>>> test = ''
>>> ['%s' % ii for ii in test.split() ]
[]
I got stung because I expected ---2--- to do what ---3--- did.
It's not a bug. The third example is the odd one out because it splits
on a sequence of one or more (whitespace) characters and discards empty
strings. For example:
>>> ',,1,,2,,'.split(',')
['', '', '1', '', '2', '', '']
>>> ' 1 2 '.split(' ')
['', '', '1', '', '2', '', '']
>>> # But...
>>> ' 1 2 '.split()
['1', '2']
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