1>>sents = ['@$\tthis sentences needs to be removed', 'this doesnt',
2 '@$\tthis sentences also needs to be removed',
3 '@$\tthis sentences must be removed', 'this shouldnt',
4 '# this needs to be removed', 'this isnt',
5 '# this must', 'this musnt']
6>>>[x for x in sents if not x.startswith('@$\t') and not x.startswith('#')]
7['this doesnt', 'this shouldnt', 'this isnt', 'this musnt']