[Tutor] Counting matching elements in sequences

[Gregor Lingl]

Alan Gauld schrieb:

>>On  9 Dec 2003, Gregor Lingl <- glingl at aon.at wrote:
>>
>>    
>>
>>>What do you think about:
>>>      
>>>
>>> >>> def alleq(seq):
>>>...     return seq == seq[:1]*len(seq)
>>>...
>>>      
>>>
>
>Gregor, I assume you had a reason to use seq[:1]
>instead of seq[0]? But I can't think of any.
>  
>
Hi Alan,
I could have used [seq[0]] instead of seq[:1], but the latter works also
if seq is empty, in which case the first would cause an error. Magnus argued
about empty lists having "all equal" elements.
Gregor