bpo-44235: fix nit style

corona10 · corona10 · commit 379c0bf1f5ca · 2021-05-29T10:01:09.000+09:00
diff --git a/Lib/gettext.py b/Lib/gettext.py
@@ -82,6 +82,7 @@
         (?P<INVALID>\w+|.)                           # invalid token
     """, re.VERBOSE|re.DOTALL)
 
+
 def _tokenize(plural):
     for mo in re.finditer(_token_pattern, plural):
         kind = mo.lastgroup
@@ -93,12 +94,14 @@ def _tokenize(plural):
         yield value
     yield ''
 
+
 def _error(value):
     if value:
         return ValueError('unexpected token in plural form: %s' % value)
     else:
         return ValueError('unexpected end of plural form')
 
+
 _binary_ops = (
     ('||',),
     ('&&',),
@@ -110,6 +113,7 @@ def _error(value):
 _binary_ops = {op: i for i, ops in enumerate(_binary_ops, 1) for op in ops}
 _c2py_ops = {'||': 'or', '&&': 'and', '/': '//'}
 
+
 def _parse(tokens, priority=-1):
     result = ''
     nexttok = next(tokens)
@@ -159,9 +163,10 @@ def _parse(tokens, priority=-1):
 
     return result, nexttok
 
+
 def _as_int(n):
     try:
-        i = round(n)
+        _ = round(n)
     except TypeError:
         raise TypeError('Plural value must be an integer, got %s' %
                         (n.__class__.__name__,)) from None
@@ -171,6 +176,7 @@ def _as_int(n):
                   DeprecationWarning, 4)
     return n
 
+
 def c2py(plural):
     """Gets a C expression as used in PO files for plural forms and returns a
     Python function that implements an equivalent expression.
@@ -249,7 +255,6 @@ def _expand_lang(loc):
     return ret
 
 
-
 class NullTranslations:
     def __init__(self, fp=None):
         self._info = {}
@@ -495,10 +500,10 @@ def find(domain, localedir=None, languages=None, all=False):
     return result
 
 
-
 # a mapping between absolute .mo file path and Translation object
 _translations = {}
 
+
 def translation(domain, localedir=None, languages=None,
                 class_=None, fallback=False):
     if class_ is None:
@@ -538,7 +543,6 @@ def install(domain, localedir=None, *, names=None):
     t.install(names)
 
 
-
 # a mapping b/w domains and locale directories
 _localedirs = {}
 # current global domain, `messages' used for compatibility w/ GNU gettext
