#elements of seq A in seq B

[Neal Becker]

What would be a time efficient way to count the number of occurrences of
elements of sequence A in sequence B? (in this particular case, these
sequences are strings, if that matters).

 

[Raymond Hettinger]

What would be a time efficient way to count the number of occurrences of
elements of sequence A in sequence B?  (in this particular case, these
sequences are strings, if that matters).

Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type "copyright", "credits" or "license()" for more information.Counter({'a': 5, 'b': 2, 'c': 1})


Raymond

 

[Raymond Hettinger]

What would be a time efficient way to count the number of occurrences of
elements of sequence A in sequence B?  (in this particular case, these
sequences are strings, if that matters).

Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type "copyright", "credits" or "license()" for more information.Counter({'a': 5, 'b': 2, 'c': 1})

Raymond