change antlr4 includes to specific members

comment.py

@@ -15,11 +15,13 @@ __email__ = "kevin@company235.com"
 __status__ = "Prototype"
 
 
-import antlr4
 import configparser
 import logging
 import sys
 
+from antlr4 import CommonTokenStream
+from antlr4 import InputStream
+from antlr4 import ParseTreeWalker
 from antlr4.error.ErrorListener import ErrorListener
 from CommentMacroLexer import CommentMacroLexer
 from CommentMacroParser import CommentMacroParser
@@ -43,7 +45,7 @@ logger.addHandler(ch)                       # add console log handler
 # TODO: refactor this to support multiple net#s
 config = configparser.ConfigParser(allow_no_value=True)
 config.read('server.cfg')                   # open config file
-servers = {}                                   # init an empty dictionary
+servers = {}                                # init an empty dictionary
 server = config['hog4']                     # section of config file
 net = server.getint("net", 1)               # default to net #1
 logger.info("Adding Hog device at net# " + str(net))
@@ -52,13 +54,13 @@ servers[net] = udp_client.SimpleUDPClient(server.get("ip", "10.0.0.1"),
                                           server.getint("port", 6600))
 
 oscMacro = OscCommentMacroListener(servers)
-walker = antlr4.ParseTreeWalker()
+walker = ParseTreeWalker()
 
 
 def comment(text):
-    input_stream = antlr4.InputStream(text)
+    input_stream = InputStream(text)
     lexer = CommentMacroLexer(input_stream)
-    stream = antlr4.CommonTokenStream(lexer)
+    stream = CommonTokenStream(lexer)
     parser = CommentMacroParser(stream)
     parser._listeners.append(SyntaxErrorListener())
     try: