srcdir = ['the.big.bang.theory s1e1', 'the.big.bang.theory s1e2',
    'dexter s2e01']
for source in srcdir:
    for destination in dstdir:
        destinationWords = destination.split()
if all(word.lower() in source.lower() for word in destinationWords):
    pass
Python Сравнение двух списков строк на предмет сходства