https://github.com/shigeru0215/sqlint'

$ pip install sqlint

Command line

$ sqlint query/*sql

Python module

$ python
>>> from sqlint import parse, check
>>> stmt = 'SELECT id From user_table  where user_table.age >10'
>>>
>>> parse(stmt)
[[<Keyword: 'SELECT'>, <Whitespace: ' '>, <Identifier: 'id'>, <Whitespace: ' '>, <Keyword: 'From'>, <Whitespace: ' '>, <Identifier: 'user_table'>, <Whitespace: '  '>, <Keyword: 'where'>, <Whitespace: ' '>, <Identifier: 'user_table.age'>, <Whitespace: ' '>, <Operator: '>'>, <Identifier: '10'>]]
>>>
>>> check(stmt)
['(L1, 1): reserved keywords must be lower case: SELECT -> select', '(L1, 11): reserved keywords must be lower case: From -> from', '(L1, 26): too many spaces', '(L1, 49): whitespace must be after binary operator: >10']