import time
 
matches = {"Foo", "Bar"}
start = time.time()
for x in xrange(1000000):
    name = "This String is Foo Bar"
    for s in matches:
        name = name.replace(s, "")
print time.time() - start
 
start = time.time()
for x in xrange(1000000):
    ''.join([x for x in 'This String is Foo Bar'.split() if x not in ('Foo', 'Bar')])
print time.time() - start
 
start = time.time()
for x in xrange(1000000):
    ' '.join([x for x in 'This String is Foo Bar'.split() if x not in ('Foo', 'Bar')])
print time.time() - start

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