made bs4 and soupsieve standalone in this project

lib/soupsieve/css_match.py

@@ -6,11 +6,13 @@ from .import css_types as ct
 import unicodedata
 from collections.abc import Sequence
 
-from ..bs4 import *
-from ..bs4.element import *
+from ..bs4 import BeautifulSoup
+from ..bs4.element import (
+    Tag, NavigableString, Comment, Declaration, CData, ProcessingInstruction, Doctype
+)
 
 # Empty tag pattern (whitespace okay)
-RE_NOT_EMPTY = re.compile('[^ \t\r\n\f]')
+RE_NOT_EMPTY = re.compile(r'[^ \t\r\n\f]')
 
 RE_NOT_WS = re.compile('[^ \t\r\n\f]+')