refactor: remove unused python2 code, optimize imports

aore/miscutils/exceptions.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-
-
 class FiasException(Exception):
     def __str__(self):
         return repr(self.args[0])

aore/miscutils/fysearch.py

@@ -1,7 +1,5 @@
-# -*- coding: utf-8 -*-
-import re
-
 import Levenshtein
+import re
 
 
 def violet_ratio(pattern, candidate):
@@ -21,7 +19,7 @@ def violet_ratio(pattern, candidate):
                 max_ratio = ratio
                 max_j = j
 
-        result.append(max_j*abs(max_ratio))
+        result.append(max_j * abs(max_ratio))
 
         if max_j > -1:
             del allowed_nums[max_j]

aore/miscutils/sphinx.py

@@ -1,8 +1,5 @@
-# -*- coding: utf-8 -*-
-
 import logging
 import os
-
 from bottle import template
 
 from aore.config import Folders, DatabaseConfig, SphinxConfig

aore/miscutils/trigram.py

@@ -1,8 +1,5 @@
-# -*- coding: utf-8 -*-
-
-
 def trigram(inp):
-    inp = u"__"+inp+u"__"
+    inp = u"__" + inp + u"__"
     output = []
 
     for i in range(0, len(inp) - 2):