Recipe 1.8. Checking Whether a String Contains a Set of Characters(Python Cookbook)

 >>> intab = "aeiou"

 >>> outtab = "12345"

 >>> from string import maketrans

 >>> trantab = maketrans(intab, outtab)

 >>> s = "this is a string example...wow!"

 >>> print s.translate(trantab)

 th3s 3s 1 str3ng 2x1mpl2...w4w!

 

 >>> import itertools

 >>> def containsAny(seq, aset):

     for item in itertools.ifilter(aset.__contains__, seq):

         return True

     return False

 

 >>> containsAny("abcd", "ae")

 True

 

 1 >>> def containsAll(seq, aset):

 2     return not set(aset).difference(seq)

 3 

 4 >>> containsAll("abc", "ad")

 5 False

 6 >>> containsAll("Abc", "Ac")

 7 True

 8 >>> L1 = [1, 2, 3, 3]

 9 >>> L2 = [1, 2, 3, 4]

 >>> set(L1).difference(L2)

 set([])

 >>> set(L2).difference(L1)

 set([4])

 

 

 1 >>> import string
 2 >>> notrans = string.maketrans('', '')
 3 >>> def containsAny(astr, strset):
 4     return len(strset) != len(strset.translate(notrans, astr))
 5 
 6 >>> def containsAll(astr, strset):
 7     return not strset.translate(notrans, astr)
 8 
 9 >>> "abc".translate(notrans, "ac")
10 'b'
11 >>> containsAny("abcde", "af")
12 True
13 >>> containsAll("abcef", "aef")