diff --git a/src/blib2to3/pgen2/driver.py b/src/blib2to3/pgen2/driver.py
index 81940f7..af1dc6b 100644
--- a/src/blib2to3/pgen2/driver.py
+++ b/src/blib2to3/pgen2/driver.py
@@ -16,7 +16,6 @@
 __all__ = ["Driver", "load_grammar"]
 
 # Python imports
-import codecs
 import io
 import os
 import logging
@@ -24,7 +23,6 @@
 import sys
 from typing import (
     Any,
-    Callable,
     IO,
     Iterable,
     List,
@@ -32,7 +30,6 @@
     Text,
     Tuple,
     Union,
-    Sequence,
 )
 
 # Pgen imports
diff --git a/src/blib2to3/pgen2/parse.py b/src/blib2to3/pgen2/parse.py
index 8c374d3..47c8f02 100644
--- a/src/blib2to3/pgen2/parse.py
+++ b/src/blib2to3/pgen2/parse.py
@@ -15,8 +15,6 @@
 from typing import (
     Optional,
     Text,
-    Sequence,
-    Any,
     Union,
     Tuple,
     Dict,
diff --git a/src/blib2to3/pgen2/pgen.py b/src/blib2to3/pgen2/pgen.py
index a685145..564ebbd 100644
--- a/src/blib2to3/pgen2/pgen.py
+++ b/src/blib2to3/pgen2/pgen.py
@@ -8,7 +8,6 @@
     Any,
     Dict,
     IO,
-    Iterable,
     Iterator,
     List,
     Optional,
diff --git a/src/blib2to3/pytree.py b/src/blib2to3/pytree.py
index 6dba3c7..0c074f6 100644
--- a/src/blib2to3/pytree.py
+++ b/src/blib2to3/pytree.py
@@ -25,7 +25,6 @@
     Union,
     Set,
     Iterable,
-    Sequence,
 )
 from blib2to3.pgen2.grammar import Grammar