Replace some uses of plugins dict

src/tinycss/token_data.py

@@ -186,6 +186,7 @@ def _init():
         for names in dispatch
     )
 
+
 _init()
 
 
@@ -196,6 +197,7 @@ def _unicode_replace(match, int=int, unichr=unichr, maxunicode=sys.maxunicode):
     else:
         return '\N{REPLACEMENT CHARACTER}'  # U+FFFD
 
+
 UNICODE_UNESCAPE = functools.partial(
     re.compile(COMPILED_MACROS['unicode'], re.I).sub,
     _unicode_replace)
@@ -204,12 +206,15 @@ NEWLINE_UNESCAPE = functools.partial(
     re.compile(r'()\\' + COMPILED_MACROS['nl']).sub,
     '')
 
+
 SIMPLE_UNESCAPE = functools.partial(
-    re.compile(r'\\(%s)' % COMPILED_MACROS['simple_escape'] , re.I).sub,
+    re.compile(r'\\(%s)' % COMPILED_MACROS['simple_escape'], re.I).sub,
     # Same as r'\1', but faster on CPython
     operator.methodcaller('group', 1))
 
-FIND_NEWLINES = lambda x : list(re.compile(COMPILED_MACROS['nl']).finditer(x))
+
+def FIND_NEWLINES(x):
+    return list(re.compile(COMPILED_MACROS['nl']).finditer(x))
 
 
 class Token(object):
@@ -439,11 +444,12 @@ class TokenList(list):
         """
         return ''.join(token.as_css() for token in self)
 
+
 def load_c_tokenizer():
-    from calibre.constants import plugins
-    tokenizer, err = plugins['tokenizer']
-    if err:
-        raise RuntimeError('Failed to load module tokenizer: %s' % err)
+    from calibre_extensions import tokenizer
     tokens = list(':;(){}[]') + ['DELIM', 'INTEGER', 'STRING']
-    tokenizer.init(COMPILED_TOKEN_REGEXPS, UNICODE_UNESCAPE, NEWLINE_UNESCAPE, SIMPLE_UNESCAPE, FIND_NEWLINES, TOKEN_DISPATCH, COMPILED_TOKEN_INDEXES, *tokens)
+    tokenizer.init(
+        COMPILED_TOKEN_REGEXPS, UNICODE_UNESCAPE, NEWLINE_UNESCAPE,
+        SIMPLE_UNESCAPE, FIND_NEWLINES, TOKEN_DISPATCH, COMPILED_TOKEN_INDEXES,
+        *tokens)
     return tokenizer