Should use xdis 1.1.2 + small lint change

__pkginfo__.py

@@ -37,7 +37,7 @@ entry_points={
     ]}
 ftp_url            = None
 install_requires   = ['spark-parser >= 1.4.0',
-                      'xdis >= 1.1.1']
+                      'xdis >= 1.1.2']
 license            = 'MIT'
 mailing_list       = 'python-debugger@googlegroups.com'
 modname            = 'uncompyle6'

uncompyle6/parsers/astnode.py

@@ -5,10 +5,6 @@ from spark_parser.ast import AST as spark_AST
 
 if PYTHON3:
     intern = sys.intern
-    from collections import UserList
-else:
-    from UserList import UserList
-
 
 class AST(spark_AST):
     def isNone(self):