pylint cleanup
pylint cleanup

nltk/nltk/tbl/demo.py:328: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:329: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:330: [W0311(bad-indentation), ] Bad indentation. Found 7 spaces, expected 8
nltk/nltk/tbl/demo.py:331: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:333: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:334: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:335: [W0311(bad-indentation), ] Bad indentation. Found 7 spaces, expected 8
nltk/nltk/tbl/demo.py:336: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:338: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:339: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:340: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:341: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4
nltk/nltk/tbl/demo.py:342: [W0311(bad-indentation), ] Bad indentation. Found 3 spaces, expected 4

nltk/nltk,nltk/nltk,nltk/nltk