How to improve this code?

Tim Golden mail at timgolden.me.uk
Tue Sep 15 18:15:58 CEST 2009


Sol Toure wrote:
> def are_elements_present(sourceList, searchList):    for e in searchList:
>           if e not in sourceList:
>                return False
>     return True
> 
> 
> Using set:
>   def are_elements_present(sourceList, searchList):
>          return len(set(sourceList).intersection(set(searchList)) ==
> len(searchList)


Unless I'm missing something, (and I didn't bother to
read the original code so I may be) that's a subset test:

set (searchList) <= set (searchList)

TJG



More information about the Python-list mailing list