diff --git a/c_utils.py b/c_utils.py
index cff33dd8..40fa4cb4 100644
--- a/c_utils.py
+++ b/c_utils.py
@@ -1,14 +1,7 @@
-import collections
-import glob
 import logging
 import os
 import pprint
-import re
-import sys
 
-import yaml
-
-# from shared_utils import overlaps, overlap_allowed, extension_overlap_allowed, instruction_overlap_allowed, process_enc_line, same_base_isa, add_segmented_vls_insn, expand_nf_field
 from shared_utils import *
 
 pp = pprint.PrettyPrinter(indent=2)
diff --git a/chisel_utils.py b/chisel_utils.py
index 957e4f8a..0943584d 100644
--- a/chisel_utils.py
+++ b/chisel_utils.py
@@ -1,13 +1,5 @@
-import collections
-import copy
-import glob
 import logging
-import os
 import pprint
-import re
-import sys
-
-import yaml
 
 from constants import *
 
diff --git a/go_utils.py b/go_utils.py
index 1f4c94bb..9815e702 100644
--- a/go_utils.py
+++ b/go_utils.py
@@ -1,14 +1,7 @@
-import collections
-import glob
 import logging
-import os
 import pprint
-import re
 import sys
 
-import yaml
-
-# from shared_utils import overlaps, overlap_allowed, extension_overlap_allowed, instruction_overlap_allowed, process_enc_line, same_base_isa, add_segmented_vls_insn, expand_nf_field
 from shared_utils import *
 
 pp = pprint.PrettyPrinter(indent=2)
diff --git a/rust_utils.py b/rust_utils.py
index 19a47b95..68e0c8cd 100644
--- a/rust_utils.py
+++ b/rust_utils.py
@@ -1,13 +1,5 @@
-import collections
-import copy
-import glob
 import logging
-import os
 import pprint
-import re
-import sys
-
-import yaml
 
 from constants import *
 
diff --git a/sverilog_utils.py b/sverilog_utils.py
index 1fe20680..ff116ccb 100644
--- a/sverilog_utils.py
+++ b/sverilog_utils.py
@@ -1,14 +1,6 @@
-import collections
-import glob
 import logging
-import os
 import pprint
-import re
-import sys
 
-import yaml
-
-# from shared_utils import overlaps, overlap_allowed, extension_overlap_allowed, instruction_overlap_allowed, process_enc_line, same_base_isa, add_segmented_vls_insn, expand_nf_field
 from shared_utils import *
 
 pp = pprint.PrettyPrinter(indent=2)